1004. 最大连续1的个数 III

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class Solution {
    public static int longestOnes(int[] A, int K) {
        int n = A.length;
        int ans = 0;
        int count = 0;
        int i = 0;
        int j = 0;
        while (j < n) {
            if (A[j] == 0) {
                count++;
            }
            
            while (count > K) {
                // 缩小窗口
                if (A[i++] == 0) {
                    count--;
                }
            }
            
            ans = Math.max(ans, j - i + 1);
            j++;
        }
        return ans;
    }
}