Exercise 07-03

diff --git a/exercises/07_threads/03_leak/src/lib.rs b/exercises/07_threads/03_leak/src/lib.rs
index b232826..18570e9 100644 (file)
--- a/exercises/07_threads/03_leak/src/lib.rs
+++ b/exercises/07_threads/03_leak/src/lib.rs
@@ -6,8 +6,11 @@
 use std::thread;
 
 pub fn sum(v: Vec<i32>) -> i32 {
-    // Vec::leak(self)
-    todo!()
+    let (s1, s2) = v.leak().split_at(v.len() / 2 as usize);
+    let t1 = thread::spawn(|| s1.iter().sum::<i32>());
+    let t2 = thread::spawn(|| s2.iter().sum::<i32>());
+
+    t1.join().unwrap() + t2.join().unwrap()
 }
 
 #[cfg(test)]