题解 | #不用加减乘除做加法#
不用加减乘除做加法
http://www.nowcoder.com/practice/59ac416b4b944300b617d4f7f111b215
public class Solution {
public int Add(int num1,int num2) {
int sum1;
int sum2;
do {
sum1 = num1 ^ num2;
sum2 = (num1 & num2) << 1;
num1 = sum1;
num2 = sum2;
} while (num2 != 0);
return num1;
}
}
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