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,sum2;
do{
sum1=num1^num2;
sum2=(num1&num2)<<1;
num1=sum1;
num2=sum2;
}while(num2!=0);
return num1;
}
} 
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