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) {
if(num2 == 0) {
return num1;
} else {
return Add(num1 ^ num2, (num1 & num2) << 1);
}
}
}