Cinte's Leetcode Record
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面试题 05.01. 插入

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Symbols count in article: 206 Reading time ≈ 1 mins.

面试题 05.01. 插入

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class Solution {
public:
    int insertBits(int N, int M, int i, int j) {
        // 把N的i~j置为0
        for(int k = i; k <= j; ++k)
            if((1 << k) & N)
                N ^= 1 << k;
        // M放到i开头上
        M <<= i;
        return M + N;
    }
};