1 /*************************************************************************
2 > File Name: 47_AddTwoNumbers.c
3 > Author: Juntaran
4 > Mail: JuntaranMail@gmail.com
5 > Created Time: 2016年09月04日 星期日 21时33分07秒
6 ************************************************************************/
7
8 #include <stdio.h>
9
10 // 移位求两数相加
11 int ADD(int num1, int num2)
12 {
13 int sum, carry;
14 if (num1 == 0)
15 return num2;
16 if (num2 == 0)
17 return num1;
18
19 while (num2 != 0)
20 {
21 sum = num1 ^ num2;
22 carry = (num1 & num2) << 1;
23
24 num1 = sum;
25 num2 = carry;
26 }
27 return sum;
28 }
29
30 int main()
31 {
32 int num1 = 5;
33 int num2 = 37;
34
35 int sum = ADD(num1, num2);
36 printf("sum is %d\n", sum);
37 return 0;
38 }
