剑指Offer-47

xiaoxiao2021-02-28  143

题目:

写一个函数,求两个整数之和,要求在函数体内不得使用 + - * /

实现

public class Solution47 { public static int sumOfNum(int num1,int num2){ int sum =0; int carry = 0; do{ sum = num1^num2; carry=(num1&num2)<<1; num1=sum; num2=carry; }while (num2!=0); return sum; } }
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