1 files changed, 22 insertions, 0 deletions
diff --git a/rustlings/exercises/02_functions/functions4.rs b/rustlings/exercises/02_functions/functions4.rs
new file mode 100644
index 0000000..b22bffd
--- /dev/null
+++ b/rustlings/exercises/02_functions/functions4.rs
@@ -0,0 +1,22 @@
+// 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 are only interested in
+// the signatures for now.
+
+fn is_even(num: i64) -> bool {
+    num % 2 == 0
+}
+
+// TODO: Fix the function signature.
+fn sale_price(price: 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));
+}