build

2026-07-07 13:14:19 +00:00 · 2024-03-21 04:22:07 +08:00
parent 35a07170c0
commit cfdb743939
52 changed files with 292 additions and 290 deletions
@@ -306,7 +306,7 @@ comments: true
            siftDown(nums: &nums, n: nums.count, i: i)
        }
        // 从堆中提取最大元素，循环 n-1 轮
-        for i in stride(from: nums.count - 1, to: 0, by: -1) {
+        for i in nums.indices.dropFirst().reversed() {
            // 交换根节点与最右叶节点（交换首元素与尾元素）
            nums.swapAt(0, i)
            // 以根节点为起点，从顶至底进行堆化