1004. Max Consecutive Ones III最大连续1的个数 III

网址：https://leetcode.com/problems/max-consecutive-ones-iii/

参考：https://leetcode.com/problems/max-consecutive-ones-iii/discuss/247564/JavaC%2B%2BPython-Sliding-Window

1. sliding window
2. K -= (A[j] == 0);
3. 注意判断条件

class Solution {
public:
    int longestOnes(vector<int>& A, int K) {
        int i = 0;
        int ans = 0;
        for(int j = 0; j<A.size(); j++)
        {
            K -= (A[j] == 0);
            if(K < 0)
            {
                K += (A[i] == 0);
                i++;
            }
            ans = j - i + 1;
        }
        return ans;
    }
};