just iterate

longest_ones_with_k_flips/src/main.rs

@@ -13,8 +13,8 @@ fn l(nums: Vec<i32>, k: i32) -> i32 {
     let mut end: i32 = -1;
     let nums = &nums;
 
-    while end < len - 1 {
-        end += 1;
+    for i in 0..len {
+        end = i;
         if nums[end as usize] == 0 {
             k -= 1;
         }