Add solutions to intro and variables

1 files changed, 16 insertions, 1 deletions

diff --git a/solutions/01_variables/variables2.rs b/solutions/01_variables/variables2.rs
index 4e18198..50b8d1b 100644
--- a/solutions/01_variables/variables2.rs
+++ b/solutions/01_variables/variables2.rs
@@ -1 +1,16 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+fn main() {
+    // The easiest way to fix the compiler error is to initialize the
+    // variable `x`. By setting its value to an integer, Rust infers its type
+    // as `i32` which is the default type for integers.
+    let x = 42;
+
+    // But we can enforce a type different from the default `i32` by adding
+    // a type annotation:
+    // let x: u8 = 42;
+
+    if x == 10 {
+        println!("x is ten!");
+    } else {
+        println!("x is not ten!");
+    }
+}