Add hints to the variable bindings exercises

1 files changed, 35 insertions, 1 deletions

diff --git a/variables/variables3.rs b/variables/variables3.rs
index cadb40b..ec55a95 100644
--- a/variables/variables3.rs
+++ b/variables/variables3.rs
@@ -1,4 +1,4 @@
-// Make me compile!
+// Make me compile! Scroll down for hints :)
 
 fn main() {
     let x = 3;
@@ -6,3 +6,37 @@ fn main() {
     x = 5;
     println!("Number {}", x);
 }
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+// In Rust, variable bindings are immutable by default. But here we're trying
+// to reassign a different value to x! There's a keyword we can use to make
+// a variable binding mutable instead.