LeetCode之Sum of Two Integers
【摘要】 1、题目
Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -.
Example: Given a = 1 and b = 2, return 3.
Credits: Special thanks to @fujia...
1、题目
Calculate the sum of two integers a and b, but you are not allowed to use the operator +
and -
.
Example:
Given a = 1 and b = 2, return 3.
Credits:
Special thanks to @fujiaozhu for adding this problem and creating all test cases.
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2、代码实现
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public class Solution {
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public int getSum(int a, int b) {
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while(b != 0)
-
{
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int tmp =(a & b) << 1;
-
//a是每次相加,相当于和
-
a = a ^ b;
-
//b相当于是进位
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b = tmp;
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}
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return a;
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}
-
}
文章来源: chenyu.blog.csdn.net,作者:chen.yu,版权归原作者所有,如需转载,请联系作者。
原文链接:chenyu.blog.csdn.net/article/details/69661874
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