From 2dac8e509bed07c30a98983cfb6b80f73a1582e9 Mon Sep 17 00:00:00 2001
From: mo8it <mo8it@proton.me>
Date: Tue, 23 Apr 2024 19:18:25 +0200
Subject: Refactor embedded files to add solutions

---
 solutions/02_functions/functions1.rs | 1 +
 solutions/02_functions/functions2.rs | 1 +
 solutions/02_functions/functions3.rs | 1 +
 solutions/02_functions/functions4.rs | 1 +
 solutions/02_functions/functions5.rs | 1 +
 5 files changed, 5 insertions(+)
 create mode 100644 solutions/02_functions/functions1.rs
 create mode 100644 solutions/02_functions/functions2.rs
 create mode 100644 solutions/02_functions/functions3.rs
 create mode 100644 solutions/02_functions/functions4.rs
 create mode 100644 solutions/02_functions/functions5.rs

(limited to 'solutions/02_functions')

diff --git a/solutions/02_functions/functions1.rs b/solutions/02_functions/functions1.rs
new file mode 100644
index 0000000..70b786d
--- /dev/null
+++ b/solutions/02_functions/functions1.rs
@@ -0,0 +1 @@
+// TODO
diff --git a/solutions/02_functions/functions2.rs b/solutions/02_functions/functions2.rs
new file mode 100644
index 0000000..70b786d
--- /dev/null
+++ b/solutions/02_functions/functions2.rs
@@ -0,0 +1 @@
+// TODO
diff --git a/solutions/02_functions/functions3.rs b/solutions/02_functions/functions3.rs
new file mode 100644
index 0000000..70b786d
--- /dev/null
+++ b/solutions/02_functions/functions3.rs
@@ -0,0 +1 @@
+// TODO
diff --git a/solutions/02_functions/functions4.rs b/solutions/02_functions/functions4.rs
new file mode 100644
index 0000000..70b786d
--- /dev/null
+++ b/solutions/02_functions/functions4.rs
@@ -0,0 +1 @@
+// TODO
diff --git a/solutions/02_functions/functions5.rs b/solutions/02_functions/functions5.rs
new file mode 100644
index 0000000..70b786d
--- /dev/null
+++ b/solutions/02_functions/functions5.rs
@@ -0,0 +1 @@
+// TODO
-- 
cgit v1.2.3


From 177e2870c5272dacee662d3e9522bc57c5a134c0 Mon Sep 17 00:00:00 2001
From: mo8it <mo8it@proton.me>
Date: Thu, 25 Apr 2024 16:30:01 +0200
Subject: Edit comment

---
 solutions/00_intro/intro1.rs                     | 2 +-
 solutions/00_intro/intro2.rs                     | 2 +-
 solutions/01_variables/variables1.rs             | 2 +-
 solutions/01_variables/variables2.rs             | 2 +-
 solutions/01_variables/variables3.rs             | 2 +-
 solutions/01_variables/variables4.rs             | 2 +-
 solutions/01_variables/variables5.rs             | 2 +-
 solutions/01_variables/variables6.rs             | 2 +-
 solutions/02_functions/functions1.rs             | 2 +-
 solutions/02_functions/functions2.rs             | 2 +-
 solutions/02_functions/functions3.rs             | 2 +-
 solutions/02_functions/functions4.rs             | 2 +-
 solutions/02_functions/functions5.rs             | 2 +-
 solutions/03_if/if1.rs                           | 2 +-
 solutions/03_if/if2.rs                           | 2 +-
 solutions/03_if/if3.rs                           | 2 +-
 solutions/04_primitive_types/primitive_types1.rs | 2 +-
 solutions/04_primitive_types/primitive_types2.rs | 2 +-
 solutions/04_primitive_types/primitive_types3.rs | 2 +-
 solutions/04_primitive_types/primitive_types4.rs | 2 +-
 solutions/04_primitive_types/primitive_types5.rs | 2 +-
 solutions/04_primitive_types/primitive_types6.rs | 2 +-
 solutions/05_vecs/vecs1.rs                       | 2 +-
 solutions/05_vecs/vecs2.rs                       | 2 +-
 solutions/06_move_semantics/move_semantics1.rs   | 2 +-
 solutions/06_move_semantics/move_semantics2.rs   | 2 +-
 solutions/06_move_semantics/move_semantics3.rs   | 2 +-
 solutions/06_move_semantics/move_semantics4.rs   | 2 +-
 solutions/06_move_semantics/move_semantics5.rs   | 2 +-
 solutions/06_move_semantics/move_semantics6.rs   | 2 +-
 solutions/07_structs/structs1.rs                 | 2 +-
 solutions/07_structs/structs2.rs                 | 2 +-
 solutions/07_structs/structs3.rs                 | 2 +-
 solutions/08_enums/enums1.rs                     | 2 +-
 solutions/08_enums/enums2.rs                     | 2 +-
 solutions/08_enums/enums3.rs                     | 2 +-
 solutions/09_strings/strings1.rs                 | 2 +-
 solutions/09_strings/strings2.rs                 | 2 +-
 solutions/09_strings/strings3.rs                 | 2 +-
 solutions/09_strings/strings4.rs                 | 2 +-
 solutions/10_modules/modules1.rs                 | 2 +-
 solutions/10_modules/modules2.rs                 | 2 +-
 solutions/10_modules/modules3.rs                 | 2 +-
 solutions/11_hashmaps/hashmaps1.rs               | 2 +-
 solutions/11_hashmaps/hashmaps2.rs               | 2 +-
 solutions/11_hashmaps/hashmaps3.rs               | 2 +-
 solutions/12_options/options1.rs                 | 2 +-
 solutions/12_options/options2.rs                 | 2 +-
 solutions/12_options/options3.rs                 | 2 +-
 solutions/13_error_handling/errors1.rs           | 2 +-
 solutions/13_error_handling/errors2.rs           | 2 +-
 solutions/13_error_handling/errors3.rs           | 2 +-
 solutions/13_error_handling/errors4.rs           | 2 +-
 solutions/13_error_handling/errors5.rs           | 2 +-
 solutions/13_error_handling/errors6.rs           | 2 +-
 solutions/14_generics/generics1.rs               | 2 +-
 solutions/14_generics/generics2.rs               | 2 +-
 solutions/15_traits/traits1.rs                   | 2 +-
 solutions/15_traits/traits2.rs                   | 2 +-
 solutions/15_traits/traits3.rs                   | 2 +-
 solutions/15_traits/traits4.rs                   | 2 +-
 solutions/15_traits/traits5.rs                   | 2 +-
 solutions/16_lifetimes/lifetimes1.rs             | 2 +-
 solutions/16_lifetimes/lifetimes2.rs             | 2 +-
 solutions/16_lifetimes/lifetimes3.rs             | 2 +-
 solutions/17_tests/tests1.rs                     | 2 +-
 solutions/17_tests/tests2.rs                     | 2 +-
 solutions/17_tests/tests3.rs                     | 2 +-
 solutions/17_tests/tests4.rs                     | 2 +-
 solutions/18_iterators/iterators1.rs             | 2 +-
 solutions/18_iterators/iterators2.rs             | 2 +-
 solutions/18_iterators/iterators3.rs             | 2 +-
 solutions/18_iterators/iterators4.rs             | 2 +-
 solutions/18_iterators/iterators5.rs             | 2 +-
 solutions/19_smart_pointers/arc1.rs              | 2 +-
 solutions/19_smart_pointers/box1.rs              | 2 +-
 solutions/19_smart_pointers/cow1.rs              | 2 +-
 solutions/19_smart_pointers/rc1.rs               | 2 +-
 solutions/20_threads/threads1.rs                 | 2 +-
 solutions/20_threads/threads2.rs                 | 2 +-
 solutions/20_threads/threads3.rs                 | 2 +-
 solutions/21_macros/macros1.rs                   | 2 +-
 solutions/21_macros/macros2.rs                   | 2 +-
 solutions/21_macros/macros3.rs                   | 2 +-
 solutions/21_macros/macros4.rs                   | 2 +-
 solutions/22_clippy/clippy1.rs                   | 2 +-
 solutions/22_clippy/clippy2.rs                   | 2 +-
 solutions/22_clippy/clippy3.rs                   | 2 +-
 solutions/23_conversions/as_ref_mut.rs           | 2 +-
 solutions/23_conversions/from_into.rs            | 2 +-
 solutions/23_conversions/from_str.rs             | 2 +-
 solutions/23_conversions/try_from_into.rs        | 2 +-
 solutions/23_conversions/using_as.rs             | 2 +-
 solutions/quizzes/quiz1.rs                       | 2 +-
 solutions/quizzes/quiz2.rs                       | 2 +-
 solutions/quizzes/quiz3.rs                       | 2 +-
 96 files changed, 96 insertions(+), 96 deletions(-)

(limited to 'solutions/02_functions')

diff --git a/solutions/00_intro/intro1.rs b/solutions/00_intro/intro1.rs
index 70b786d..4e18198 100644
--- a/solutions/00_intro/intro1.rs
+++ b/solutions/00_intro/intro1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/00_intro/intro2.rs b/solutions/00_intro/intro2.rs
index 70b786d..4e18198 100644
--- a/solutions/00_intro/intro2.rs
+++ b/solutions/00_intro/intro2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/01_variables/variables1.rs b/solutions/01_variables/variables1.rs
index 70b786d..4e18198 100644
--- a/solutions/01_variables/variables1.rs
+++ b/solutions/01_variables/variables1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/01_variables/variables2.rs b/solutions/01_variables/variables2.rs
index 70b786d..4e18198 100644
--- a/solutions/01_variables/variables2.rs
+++ b/solutions/01_variables/variables2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/01_variables/variables3.rs b/solutions/01_variables/variables3.rs
index 70b786d..4e18198 100644
--- a/solutions/01_variables/variables3.rs
+++ b/solutions/01_variables/variables3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/01_variables/variables4.rs b/solutions/01_variables/variables4.rs
index 70b786d..4e18198 100644
--- a/solutions/01_variables/variables4.rs
+++ b/solutions/01_variables/variables4.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/01_variables/variables5.rs b/solutions/01_variables/variables5.rs
index 70b786d..4e18198 100644
--- a/solutions/01_variables/variables5.rs
+++ b/solutions/01_variables/variables5.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/01_variables/variables6.rs b/solutions/01_variables/variables6.rs
index 70b786d..4e18198 100644
--- a/solutions/01_variables/variables6.rs
+++ b/solutions/01_variables/variables6.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/02_functions/functions1.rs b/solutions/02_functions/functions1.rs
index 70b786d..4e18198 100644
--- a/solutions/02_functions/functions1.rs
+++ b/solutions/02_functions/functions1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/02_functions/functions2.rs b/solutions/02_functions/functions2.rs
index 70b786d..4e18198 100644
--- a/solutions/02_functions/functions2.rs
+++ b/solutions/02_functions/functions2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/02_functions/functions3.rs b/solutions/02_functions/functions3.rs
index 70b786d..4e18198 100644
--- a/solutions/02_functions/functions3.rs
+++ b/solutions/02_functions/functions3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/02_functions/functions4.rs b/solutions/02_functions/functions4.rs
index 70b786d..4e18198 100644
--- a/solutions/02_functions/functions4.rs
+++ b/solutions/02_functions/functions4.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/02_functions/functions5.rs b/solutions/02_functions/functions5.rs
index 70b786d..4e18198 100644
--- a/solutions/02_functions/functions5.rs
+++ b/solutions/02_functions/functions5.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/03_if/if1.rs b/solutions/03_if/if1.rs
index 70b786d..4e18198 100644
--- a/solutions/03_if/if1.rs
+++ b/solutions/03_if/if1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/03_if/if2.rs b/solutions/03_if/if2.rs
index 70b786d..4e18198 100644
--- a/solutions/03_if/if2.rs
+++ b/solutions/03_if/if2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/03_if/if3.rs b/solutions/03_if/if3.rs
index 70b786d..4e18198 100644
--- a/solutions/03_if/if3.rs
+++ b/solutions/03_if/if3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/04_primitive_types/primitive_types1.rs b/solutions/04_primitive_types/primitive_types1.rs
index 70b786d..4e18198 100644
--- a/solutions/04_primitive_types/primitive_types1.rs
+++ b/solutions/04_primitive_types/primitive_types1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/04_primitive_types/primitive_types2.rs b/solutions/04_primitive_types/primitive_types2.rs
index 70b786d..4e18198 100644
--- a/solutions/04_primitive_types/primitive_types2.rs
+++ b/solutions/04_primitive_types/primitive_types2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/04_primitive_types/primitive_types3.rs b/solutions/04_primitive_types/primitive_types3.rs
index 70b786d..4e18198 100644
--- a/solutions/04_primitive_types/primitive_types3.rs
+++ b/solutions/04_primitive_types/primitive_types3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/04_primitive_types/primitive_types4.rs b/solutions/04_primitive_types/primitive_types4.rs
index 70b786d..4e18198 100644
--- a/solutions/04_primitive_types/primitive_types4.rs
+++ b/solutions/04_primitive_types/primitive_types4.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/04_primitive_types/primitive_types5.rs b/solutions/04_primitive_types/primitive_types5.rs
index 70b786d..4e18198 100644
--- a/solutions/04_primitive_types/primitive_types5.rs
+++ b/solutions/04_primitive_types/primitive_types5.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/04_primitive_types/primitive_types6.rs b/solutions/04_primitive_types/primitive_types6.rs
index 70b786d..4e18198 100644
--- a/solutions/04_primitive_types/primitive_types6.rs
+++ b/solutions/04_primitive_types/primitive_types6.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/05_vecs/vecs1.rs b/solutions/05_vecs/vecs1.rs
index 70b786d..4e18198 100644
--- a/solutions/05_vecs/vecs1.rs
+++ b/solutions/05_vecs/vecs1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/05_vecs/vecs2.rs b/solutions/05_vecs/vecs2.rs
index 70b786d..4e18198 100644
--- a/solutions/05_vecs/vecs2.rs
+++ b/solutions/05_vecs/vecs2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/06_move_semantics/move_semantics1.rs b/solutions/06_move_semantics/move_semantics1.rs
index 70b786d..4e18198 100644
--- a/solutions/06_move_semantics/move_semantics1.rs
+++ b/solutions/06_move_semantics/move_semantics1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/06_move_semantics/move_semantics2.rs b/solutions/06_move_semantics/move_semantics2.rs
index 70b786d..4e18198 100644
--- a/solutions/06_move_semantics/move_semantics2.rs
+++ b/solutions/06_move_semantics/move_semantics2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/06_move_semantics/move_semantics3.rs b/solutions/06_move_semantics/move_semantics3.rs
index 70b786d..4e18198 100644
--- a/solutions/06_move_semantics/move_semantics3.rs
+++ b/solutions/06_move_semantics/move_semantics3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/06_move_semantics/move_semantics4.rs b/solutions/06_move_semantics/move_semantics4.rs
index 70b786d..4e18198 100644
--- a/solutions/06_move_semantics/move_semantics4.rs
+++ b/solutions/06_move_semantics/move_semantics4.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/06_move_semantics/move_semantics5.rs b/solutions/06_move_semantics/move_semantics5.rs
index 70b786d..4e18198 100644
--- a/solutions/06_move_semantics/move_semantics5.rs
+++ b/solutions/06_move_semantics/move_semantics5.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/06_move_semantics/move_semantics6.rs b/solutions/06_move_semantics/move_semantics6.rs
index 70b786d..4e18198 100644
--- a/solutions/06_move_semantics/move_semantics6.rs
+++ b/solutions/06_move_semantics/move_semantics6.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/07_structs/structs1.rs b/solutions/07_structs/structs1.rs
index 70b786d..4e18198 100644
--- a/solutions/07_structs/structs1.rs
+++ b/solutions/07_structs/structs1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/07_structs/structs2.rs b/solutions/07_structs/structs2.rs
index 70b786d..4e18198 100644
--- a/solutions/07_structs/structs2.rs
+++ b/solutions/07_structs/structs2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/07_structs/structs3.rs b/solutions/07_structs/structs3.rs
index 70b786d..4e18198 100644
--- a/solutions/07_structs/structs3.rs
+++ b/solutions/07_structs/structs3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/08_enums/enums1.rs b/solutions/08_enums/enums1.rs
index 70b786d..4e18198 100644
--- a/solutions/08_enums/enums1.rs
+++ b/solutions/08_enums/enums1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/08_enums/enums2.rs b/solutions/08_enums/enums2.rs
index 70b786d..4e18198 100644
--- a/solutions/08_enums/enums2.rs
+++ b/solutions/08_enums/enums2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/08_enums/enums3.rs b/solutions/08_enums/enums3.rs
index 70b786d..4e18198 100644
--- a/solutions/08_enums/enums3.rs
+++ b/solutions/08_enums/enums3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/09_strings/strings1.rs b/solutions/09_strings/strings1.rs
index 70b786d..4e18198 100644
--- a/solutions/09_strings/strings1.rs
+++ b/solutions/09_strings/strings1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/09_strings/strings2.rs b/solutions/09_strings/strings2.rs
index 70b786d..4e18198 100644
--- a/solutions/09_strings/strings2.rs
+++ b/solutions/09_strings/strings2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/09_strings/strings3.rs b/solutions/09_strings/strings3.rs
index 70b786d..4e18198 100644
--- a/solutions/09_strings/strings3.rs
+++ b/solutions/09_strings/strings3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/09_strings/strings4.rs b/solutions/09_strings/strings4.rs
index 70b786d..4e18198 100644
--- a/solutions/09_strings/strings4.rs
+++ b/solutions/09_strings/strings4.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/10_modules/modules1.rs b/solutions/10_modules/modules1.rs
index 70b786d..4e18198 100644
--- a/solutions/10_modules/modules1.rs
+++ b/solutions/10_modules/modules1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/10_modules/modules2.rs b/solutions/10_modules/modules2.rs
index 70b786d..4e18198 100644
--- a/solutions/10_modules/modules2.rs
+++ b/solutions/10_modules/modules2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/10_modules/modules3.rs b/solutions/10_modules/modules3.rs
index 70b786d..4e18198 100644
--- a/solutions/10_modules/modules3.rs
+++ b/solutions/10_modules/modules3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/11_hashmaps/hashmaps1.rs b/solutions/11_hashmaps/hashmaps1.rs
index 70b786d..4e18198 100644
--- a/solutions/11_hashmaps/hashmaps1.rs
+++ b/solutions/11_hashmaps/hashmaps1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/11_hashmaps/hashmaps2.rs b/solutions/11_hashmaps/hashmaps2.rs
index 70b786d..4e18198 100644
--- a/solutions/11_hashmaps/hashmaps2.rs
+++ b/solutions/11_hashmaps/hashmaps2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/11_hashmaps/hashmaps3.rs b/solutions/11_hashmaps/hashmaps3.rs
index 70b786d..4e18198 100644
--- a/solutions/11_hashmaps/hashmaps3.rs
+++ b/solutions/11_hashmaps/hashmaps3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/12_options/options1.rs b/solutions/12_options/options1.rs
index 70b786d..4e18198 100644
--- a/solutions/12_options/options1.rs
+++ b/solutions/12_options/options1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/12_options/options2.rs b/solutions/12_options/options2.rs
index 70b786d..4e18198 100644
--- a/solutions/12_options/options2.rs
+++ b/solutions/12_options/options2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/12_options/options3.rs b/solutions/12_options/options3.rs
index 70b786d..4e18198 100644
--- a/solutions/12_options/options3.rs
+++ b/solutions/12_options/options3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/13_error_handling/errors1.rs b/solutions/13_error_handling/errors1.rs
index 70b786d..4e18198 100644
--- a/solutions/13_error_handling/errors1.rs
+++ b/solutions/13_error_handling/errors1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/13_error_handling/errors2.rs b/solutions/13_error_handling/errors2.rs
index 70b786d..4e18198 100644
--- a/solutions/13_error_handling/errors2.rs
+++ b/solutions/13_error_handling/errors2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/13_error_handling/errors3.rs b/solutions/13_error_handling/errors3.rs
index 70b786d..4e18198 100644
--- a/solutions/13_error_handling/errors3.rs
+++ b/solutions/13_error_handling/errors3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/13_error_handling/errors4.rs b/solutions/13_error_handling/errors4.rs
index 70b786d..4e18198 100644
--- a/solutions/13_error_handling/errors4.rs
+++ b/solutions/13_error_handling/errors4.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/13_error_handling/errors5.rs b/solutions/13_error_handling/errors5.rs
index 70b786d..4e18198 100644
--- a/solutions/13_error_handling/errors5.rs
+++ b/solutions/13_error_handling/errors5.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/13_error_handling/errors6.rs b/solutions/13_error_handling/errors6.rs
index 70b786d..4e18198 100644
--- a/solutions/13_error_handling/errors6.rs
+++ b/solutions/13_error_handling/errors6.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/14_generics/generics1.rs b/solutions/14_generics/generics1.rs
index 70b786d..4e18198 100644
--- a/solutions/14_generics/generics1.rs
+++ b/solutions/14_generics/generics1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/14_generics/generics2.rs b/solutions/14_generics/generics2.rs
index 70b786d..4e18198 100644
--- a/solutions/14_generics/generics2.rs
+++ b/solutions/14_generics/generics2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/15_traits/traits1.rs b/solutions/15_traits/traits1.rs
index 70b786d..4e18198 100644
--- a/solutions/15_traits/traits1.rs
+++ b/solutions/15_traits/traits1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/15_traits/traits2.rs b/solutions/15_traits/traits2.rs
index 70b786d..4e18198 100644
--- a/solutions/15_traits/traits2.rs
+++ b/solutions/15_traits/traits2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/15_traits/traits3.rs b/solutions/15_traits/traits3.rs
index 70b786d..4e18198 100644
--- a/solutions/15_traits/traits3.rs
+++ b/solutions/15_traits/traits3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/15_traits/traits4.rs b/solutions/15_traits/traits4.rs
index 70b786d..4e18198 100644
--- a/solutions/15_traits/traits4.rs
+++ b/solutions/15_traits/traits4.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/15_traits/traits5.rs b/solutions/15_traits/traits5.rs
index 70b786d..4e18198 100644
--- a/solutions/15_traits/traits5.rs
+++ b/solutions/15_traits/traits5.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/16_lifetimes/lifetimes1.rs b/solutions/16_lifetimes/lifetimes1.rs
index 70b786d..4e18198 100644
--- a/solutions/16_lifetimes/lifetimes1.rs
+++ b/solutions/16_lifetimes/lifetimes1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/16_lifetimes/lifetimes2.rs b/solutions/16_lifetimes/lifetimes2.rs
index 70b786d..4e18198 100644
--- a/solutions/16_lifetimes/lifetimes2.rs
+++ b/solutions/16_lifetimes/lifetimes2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/16_lifetimes/lifetimes3.rs b/solutions/16_lifetimes/lifetimes3.rs
index 70b786d..4e18198 100644
--- a/solutions/16_lifetimes/lifetimes3.rs
+++ b/solutions/16_lifetimes/lifetimes3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/17_tests/tests1.rs b/solutions/17_tests/tests1.rs
index 70b786d..4e18198 100644
--- a/solutions/17_tests/tests1.rs
+++ b/solutions/17_tests/tests1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/17_tests/tests2.rs b/solutions/17_tests/tests2.rs
index 70b786d..4e18198 100644
--- a/solutions/17_tests/tests2.rs
+++ b/solutions/17_tests/tests2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/17_tests/tests3.rs b/solutions/17_tests/tests3.rs
index 70b786d..4e18198 100644
--- a/solutions/17_tests/tests3.rs
+++ b/solutions/17_tests/tests3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/17_tests/tests4.rs b/solutions/17_tests/tests4.rs
index 70b786d..4e18198 100644
--- a/solutions/17_tests/tests4.rs
+++ b/solutions/17_tests/tests4.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/18_iterators/iterators1.rs b/solutions/18_iterators/iterators1.rs
index 70b786d..4e18198 100644
--- a/solutions/18_iterators/iterators1.rs
+++ b/solutions/18_iterators/iterators1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/18_iterators/iterators2.rs b/solutions/18_iterators/iterators2.rs
index 70b786d..4e18198 100644
--- a/solutions/18_iterators/iterators2.rs
+++ b/solutions/18_iterators/iterators2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/18_iterators/iterators3.rs b/solutions/18_iterators/iterators3.rs
index 70b786d..4e18198 100644
--- a/solutions/18_iterators/iterators3.rs
+++ b/solutions/18_iterators/iterators3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/18_iterators/iterators4.rs b/solutions/18_iterators/iterators4.rs
index 70b786d..4e18198 100644
--- a/solutions/18_iterators/iterators4.rs
+++ b/solutions/18_iterators/iterators4.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/18_iterators/iterators5.rs b/solutions/18_iterators/iterators5.rs
index 70b786d..4e18198 100644
--- a/solutions/18_iterators/iterators5.rs
+++ b/solutions/18_iterators/iterators5.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/19_smart_pointers/arc1.rs b/solutions/19_smart_pointers/arc1.rs
index 70b786d..4e18198 100644
--- a/solutions/19_smart_pointers/arc1.rs
+++ b/solutions/19_smart_pointers/arc1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/19_smart_pointers/box1.rs b/solutions/19_smart_pointers/box1.rs
index 70b786d..4e18198 100644
--- a/solutions/19_smart_pointers/box1.rs
+++ b/solutions/19_smart_pointers/box1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/19_smart_pointers/cow1.rs b/solutions/19_smart_pointers/cow1.rs
index 70b786d..4e18198 100644
--- a/solutions/19_smart_pointers/cow1.rs
+++ b/solutions/19_smart_pointers/cow1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/19_smart_pointers/rc1.rs b/solutions/19_smart_pointers/rc1.rs
index 70b786d..4e18198 100644
--- a/solutions/19_smart_pointers/rc1.rs
+++ b/solutions/19_smart_pointers/rc1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/20_threads/threads1.rs b/solutions/20_threads/threads1.rs
index 70b786d..4e18198 100644
--- a/solutions/20_threads/threads1.rs
+++ b/solutions/20_threads/threads1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/20_threads/threads2.rs b/solutions/20_threads/threads2.rs
index 70b786d..4e18198 100644
--- a/solutions/20_threads/threads2.rs
+++ b/solutions/20_threads/threads2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/20_threads/threads3.rs b/solutions/20_threads/threads3.rs
index 70b786d..4e18198 100644
--- a/solutions/20_threads/threads3.rs
+++ b/solutions/20_threads/threads3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/21_macros/macros1.rs b/solutions/21_macros/macros1.rs
index 70b786d..4e18198 100644
--- a/solutions/21_macros/macros1.rs
+++ b/solutions/21_macros/macros1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/21_macros/macros2.rs b/solutions/21_macros/macros2.rs
index 70b786d..4e18198 100644
--- a/solutions/21_macros/macros2.rs
+++ b/solutions/21_macros/macros2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/21_macros/macros3.rs b/solutions/21_macros/macros3.rs
index 70b786d..4e18198 100644
--- a/solutions/21_macros/macros3.rs
+++ b/solutions/21_macros/macros3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/21_macros/macros4.rs b/solutions/21_macros/macros4.rs
index 70b786d..4e18198 100644
--- a/solutions/21_macros/macros4.rs
+++ b/solutions/21_macros/macros4.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/22_clippy/clippy1.rs b/solutions/22_clippy/clippy1.rs
index 70b786d..4e18198 100644
--- a/solutions/22_clippy/clippy1.rs
+++ b/solutions/22_clippy/clippy1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/22_clippy/clippy2.rs b/solutions/22_clippy/clippy2.rs
index 70b786d..4e18198 100644
--- a/solutions/22_clippy/clippy2.rs
+++ b/solutions/22_clippy/clippy2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/22_clippy/clippy3.rs b/solutions/22_clippy/clippy3.rs
index 70b786d..4e18198 100644
--- a/solutions/22_clippy/clippy3.rs
+++ b/solutions/22_clippy/clippy3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/23_conversions/as_ref_mut.rs b/solutions/23_conversions/as_ref_mut.rs
index 70b786d..4e18198 100644
--- a/solutions/23_conversions/as_ref_mut.rs
+++ b/solutions/23_conversions/as_ref_mut.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/23_conversions/from_into.rs b/solutions/23_conversions/from_into.rs
index 70b786d..4e18198 100644
--- a/solutions/23_conversions/from_into.rs
+++ b/solutions/23_conversions/from_into.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/23_conversions/from_str.rs b/solutions/23_conversions/from_str.rs
index 70b786d..4e18198 100644
--- a/solutions/23_conversions/from_str.rs
+++ b/solutions/23_conversions/from_str.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/23_conversions/try_from_into.rs b/solutions/23_conversions/try_from_into.rs
index 70b786d..4e18198 100644
--- a/solutions/23_conversions/try_from_into.rs
+++ b/solutions/23_conversions/try_from_into.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/23_conversions/using_as.rs b/solutions/23_conversions/using_as.rs
index 70b786d..4e18198 100644
--- a/solutions/23_conversions/using_as.rs
+++ b/solutions/23_conversions/using_as.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/quizzes/quiz1.rs b/solutions/quizzes/quiz1.rs
index 70b786d..4e18198 100644
--- a/solutions/quizzes/quiz1.rs
+++ b/solutions/quizzes/quiz1.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/quizzes/quiz2.rs b/solutions/quizzes/quiz2.rs
index 70b786d..4e18198 100644
--- a/solutions/quizzes/quiz2.rs
+++ b/solutions/quizzes/quiz2.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
diff --git a/solutions/quizzes/quiz3.rs b/solutions/quizzes/quiz3.rs
index 70b786d..4e18198 100644
--- a/solutions/quizzes/quiz3.rs
+++ b/solutions/quizzes/quiz3.rs
@@ -1 +1 @@
-// TODO
+// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
-- 
cgit v1.2.3


From d0b843d6c4a99636d3dc6caf3ceebea14cb3b07d Mon Sep 17 00:00:00 2001
From: mo8it <mo8it@proton.me>
Date: Tue, 21 May 2024 02:43:18 +0200
Subject: Add solutions to functions

---
 exercises/02_functions/functions1.rs |  4 +++-
 exercises/02_functions/functions2.rs |  9 +++++----
 exercises/02_functions/functions3.rs |  9 +++++----
 exercises/02_functions/functions4.rs | 19 ++++++++++---------
 exercises/02_functions/functions5.rs | 11 ++++++-----
 rustlings-macros/info.toml           | 22 +++++++++++-----------
 solutions/01_variables/variables4.rs |  2 +-
 solutions/01_variables/variables5.rs |  2 +-
 solutions/02_functions/functions1.rs |  9 ++++++++-
 solutions/02_functions/functions2.rs | 12 +++++++++++-
 solutions/02_functions/functions3.rs | 11 ++++++++++-
 solutions/02_functions/functions4.rs | 18 +++++++++++++++++-
 solutions/02_functions/functions5.rs | 10 +++++++++-
 13 files changed, 97 insertions(+), 41 deletions(-)

(limited to 'solutions/02_functions')

diff --git a/exercises/02_functions/functions1.rs b/exercises/02_functions/functions1.rs
index 4e3b103..a812c21 100644
--- a/exercises/02_functions/functions1.rs
+++ b/exercises/02_functions/functions1.rs
@@ -1,3 +1,5 @@
+// TODO: Add some function with the name `call_me` without arguments or a return value.
+
 fn main() {
-    call_me();
+    call_me(); // Don't change this line
 }
diff --git a/exercises/02_functions/functions2.rs b/exercises/02_functions/functions2.rs
index 84e09cd..2c773c6 100644
--- a/exercises/02_functions/functions2.rs
+++ b/exercises/02_functions/functions2.rs
@@ -1,9 +1,10 @@
-fn main() {
-    call_me(3);
-}
-
+// TODO: Add the missing type of the argument `num` after the colon `:`.
 fn call_me(num:) {
     for i in 0..num {
         println!("Ring! Call number {}", i + 1);
     }
 }
+
+fn main() {
+    call_me(3);
+}
diff --git a/exercises/02_functions/functions3.rs b/exercises/02_functions/functions3.rs
index 66fb6d3..5d5122a 100644
--- a/exercises/02_functions/functions3.rs
+++ b/exercises/02_functions/functions3.rs
@@ -1,9 +1,10 @@
-fn main() {
-    call_me();
-}
-
 fn call_me(num: u32) {
     for i in 0..num {
         println!("Ring! Call number {}", i + 1);
     }
 }
+
+fn main() {
+    // TODO: Fix the function call.
+    call_me();
+}
diff --git a/exercises/02_functions/functions4.rs b/exercises/02_functions/functions4.rs
index 06d3b1b..b22bffd 100644
--- a/exercises/02_functions/functions4.rs
+++ b/exercises/02_functions/functions4.rs
@@ -1,14 +1,14 @@
 // This store is having a sale where if the price is an even number, you get 10
-// Rustbucks off, but if it's an odd number, it's 3 Rustbucks off. (Don't worry
-// about the function bodies themselves, we're only interested in the signatures
-// for now. If anything, this is a good way to peek ahead to future exercises!)
+// Rustbucks off, but if it's an odd number, it's 3 Rustbucks off.
+// Don't worry about the function bodies themselves, we are only interested in
+// the signatures for now.
 
-fn main() {
-    let original_price = 51;
-    println!("Your sale price is {}", sale_price(original_price));
+fn is_even(num: i64) -> bool {
+    num % 2 == 0
 }
 
-fn sale_price(price: i32) -> {
+// TODO: Fix the function signature.
+fn sale_price(price: i64) -> {
     if is_even(price) {
         price - 10
     } else {
@@ -16,6 +16,7 @@ fn sale_price(price: i32) -> {
     }
 }
 
-fn is_even(num: i32) -> bool {
-    num % 2 == 0
+fn main() {
+    let original_price = 51;
+    println!("Your sale price is {}", sale_price(original_price));
 }
diff --git a/exercises/02_functions/functions5.rs b/exercises/02_functions/functions5.rs
index 3bb5e52..31fd057 100644
--- a/exercises/02_functions/functions5.rs
+++ b/exercises/02_functions/functions5.rs
@@ -1,8 +1,9 @@
-fn main() {
-    let answer = square(3);
-    println!("The square of 3 is {}", answer);
-}
-
+// TODO: Fix the function body without chaning the signature.
 fn square(num: i32) -> i32 {
     num * num;
 }
+
+fn main() {
+    let answer = square(3);
+    println!("The square of 3 is {answer}");
+}
diff --git a/rustlings-macros/info.toml b/rustlings-macros/info.toml
index be3b262..495e9c3 100644
--- a/rustlings-macros/info.toml
+++ b/rustlings-macros/info.toml
@@ -142,7 +142,7 @@ test = false
 hint = """
 This `main` function is calling a function that it expects to exist, but the
 function doesn't exist. It expects this function to have the name `call_me`.
-It expects this function to not take any arguments and not return a value.
+It also expects this function to not take any arguments and not return a value.
 Sounds a lot like `main`, doesn't it?"""
 
 [[exercises]]
@@ -159,7 +159,7 @@ dir = "02_functions"
 test = false
 hint = """
 This time, the function *declaration* is okay, but there's something wrong
-with the place where we're calling the function."""
+with the place where we are calling the function."""
 
 [[exercises]]
 name = "functions4"
@@ -167,8 +167,8 @@ dir = "02_functions"
 test = false
 hint = """
 The error message points to the function `sale_price` and says it expects a type
-after the `->`. This is where the function's return type should be -- take a
-look at the `is_even` function for an example!"""
+after `->`. This is where the function's return type should be.
+Take a look at the `is_even` function for an example!"""
 
 [[exercises]]
 name = "functions5"
@@ -177,15 +177,15 @@ test = false
 hint = """
 This is a really common error that can be fixed by removing one character.
 It happens because Rust distinguishes between expressions and statements:
-expressions return a value based on their operand(s), and statements simply
-return a `()` type which behaves just like `void` in C/C++ language.
+Expressions return a value based on their operand(s), and statements simply
+return a `()` type which behaves just like `void` in C/C++.
 
-We want to return a value of `i32` type from the `square` function, but it is
-returning a `()` type...
+We want to return a value with the type `i32` from the `square` function, but
+it is returning the type `()`.
 
-They are not the same. There are two solutions:
-1. Add a `return` ahead of `num * num;`
-2. remove `;`, make it to be `num * num`"""
+There are two solutions:
+1. Add the `return` keyword before `num * num;`
+2. Remove the semicolon `;` after `num * num`"""
 
 # IF
 
diff --git a/solutions/01_variables/variables4.rs b/solutions/01_variables/variables4.rs
index 0540caa..7de6bcb 100644
--- a/solutions/01_variables/variables4.rs
+++ b/solutions/01_variables/variables4.rs
@@ -4,6 +4,6 @@ fn main() {
     let mut x = 3;
     println!("Number {x}");
 
-    x = 5; // Don't change this line
+    x = 5;
     println!("Number {x}");
 }
diff --git a/solutions/01_variables/variables5.rs b/solutions/01_variables/variables5.rs
index 456dc9c..9057754 100644
--- a/solutions/01_variables/variables5.rs
+++ b/solutions/01_variables/variables5.rs
@@ -1,5 +1,5 @@
 fn main() {
-    let number = "T-H-R-E-E"; // Don't change this line
+    let number = "T-H-R-E-E";
     println!("Spell a number: {}", number);
 
     // Using variable shadowing
diff --git a/solutions/02_functions/functions1.rs b/solutions/02_functions/functions1.rs
index 4e18198..dc52744 100644
--- a/solutions/02_functions/functions1.rs
+++ b/solutions/02_functions/functions1.rs
@@ -1 +1,8 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+// Some function with the name `call_me` without arguments or a return value.
+fn call_me() {
+    println!("Hello world!");
+}
+
+fn main() {
+    call_me();
+}
diff --git a/solutions/02_functions/functions2.rs b/solutions/02_functions/functions2.rs
index 4e18198..f14ffa3 100644
--- a/solutions/02_functions/functions2.rs
+++ b/solutions/02_functions/functions2.rs
@@ -1 +1,11 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+// The type of function arguments must be annotated.
+// Added the type annotation `u64`.
+fn call_me(num: u64) {
+    for i in 0..num {
+        println!("Ring! Call number {}", i + 1);
+    }
+}
+
+fn main() {
+    call_me(3);
+}
diff --git a/solutions/02_functions/functions3.rs b/solutions/02_functions/functions3.rs
index 4e18198..c581c42 100644
--- a/solutions/02_functions/functions3.rs
+++ b/solutions/02_functions/functions3.rs
@@ -1 +1,10 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+fn call_me(num: u32) {
+    for i in 0..num {
+        println!("Ring! Call number {}", i + 1);
+    }
+}
+
+fn main() {
+    // `call_me` expects an argument.
+    call_me(5);
+}
diff --git a/solutions/02_functions/functions4.rs b/solutions/02_functions/functions4.rs
index 4e18198..f823de2 100644
--- a/solutions/02_functions/functions4.rs
+++ b/solutions/02_functions/functions4.rs
@@ -1 +1,17 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+fn is_even(num: i64) -> bool {
+    num % 2 == 0
+}
+
+// The return type must always be annotated.
+fn sale_price(price: i64) -> i64 {
+    if is_even(price) {
+        price - 10
+    } else {
+        price - 3
+    }
+}
+
+fn main() {
+    let original_price = 51;
+    println!("Your sale price is {}", sale_price(original_price));
+}
diff --git a/solutions/02_functions/functions5.rs b/solutions/02_functions/functions5.rs
index 4e18198..0335418 100644
--- a/solutions/02_functions/functions5.rs
+++ b/solutions/02_functions/functions5.rs
@@ -1 +1,9 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+fn square(num: i32) -> i32 {
+    // Removed the semicolon `;` at the end of the line below to implicitely return the result.
+    num * num
+}
+
+fn main() {
+    let answer = square(3);
+    println!("The square of 3 is {answer}");
+}
-- 
cgit v1.2.3


From f8d38320cd239d0abbd1b24fc972fd6f7f592ed9 Mon Sep 17 00:00:00 2001
From: mo8it <mo8it@proton.me>
Date: Thu, 6 Jun 2024 01:59:09 +0200
Subject: Fix typos

---
 exercises/02_functions/functions5.rs | 2 +-
 solutions/02_functions/functions5.rs | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'solutions/02_functions')

diff --git a/exercises/02_functions/functions5.rs b/exercises/02_functions/functions5.rs
index 31fd057..34a2ac7 100644
--- a/exercises/02_functions/functions5.rs
+++ b/exercises/02_functions/functions5.rs
@@ -1,4 +1,4 @@
-// TODO: Fix the function body without chaning the signature.
+// TODO: Fix the function body without changing the signature.
 fn square(num: i32) -> i32 {
     num * num;
 }
diff --git a/solutions/02_functions/functions5.rs b/solutions/02_functions/functions5.rs
index 0335418..677f327 100644
--- a/solutions/02_functions/functions5.rs
+++ b/solutions/02_functions/functions5.rs
@@ -1,5 +1,5 @@
 fn square(num: i32) -> i32 {
-    // Removed the semicolon `;` at the end of the line below to implicitely return the result.
+    // Removed the semicolon `;` at the end of the line below to implicitly return the result.
     num * num
 }
 
-- 
cgit v1.2.3