From 92a5d0037f0124eb2cdd8637762ca6aa4494fcbd Mon Sep 17 00:00:00 2001
From: fointard <cmarpaud@gmail.com>
Date: Tue, 19 Apr 2022 17:11:27 +0200
Subject: [PATCH] refactor(arc1): improve readability by using functional style

---
 exercises/standard_library_types/arc1.rs | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/exercises/standard_library_types/arc1.rs b/exercises/standard_library_types/arc1.rs
index d167380c..f60061e7 100644
--- a/exercises/standard_library_types/arc1.rs
+++ b/exercises/standard_library_types/arc1.rs
@@ -32,12 +32,7 @@ fn main() {
     for offset in 0..8 {
         let child_numbers = // TODO
         joinhandles.push(thread::spawn(move || {
-            let mut i = offset;
-            let mut sum = 0;
-            while i < child_numbers.len() {
-                sum += child_numbers[i];
-                i += 8;
-            }
+            let sum: u32 = child_numbers.iter().filter(|n| *n % 8 == offset).sum();
             println!("Sum of offset {} is {}", offset, sum);
         }));
     }