题解 | #懂二进制#

using System;
using System.Collections.Generic;


class Solution {
    /**
     * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
     *
     *
     * @param m int整型
     * @param n int整型
     * @return int整型
     */
    public int countBitDiff (int m, int n) {
        // write code here
        string strMB = Convert.ToString(m, 2).PadLeft(32, '0');
        string strNB = Convert.ToString(n, 2).PadLeft(32, '0');
        int nMinLen = strMB.Length > strNB.Length ? strNB.Length : strMB.Length;
        int nMaxLen = strMB.Length > strNB.Length ? strMB.Length : strNB.Length;
        int nCount = 0;
        for (int i = 0; i < nMinLen; i++) {
            if (strMB[i] == strNB[i])
                continue;
            nCount++;
        }
        return nCount + nMaxLen - nMinLen;
    }
}