HDU 1091 A+B for Input-Output Practice (III)

Problem Description

Your task is to Calculate a + b.

 

 

Input

Input contains multiple test cases. Each test case contains a pair of integers a and b, one pair of integers per line. A test case containing 0 0 terminates the input and this test case is not to be processed.

 

 

Output

For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input.

 

 

Sample Input

1 5

10 20

0 0

 

 

Sample Output

6

30

 

题意:输入数据,每组两个整数,输出这两个数据的和,当输入0 0时,程序结束.

分析：scanf语句返回值是输入的内容类型的个数。

AC源代码（C语言）：

#include<stdio.h>
int main()
{
  int a,b;
  while(scanf("%d%d",&a,&b)==2)
  {
    if(a==0&&b==0) break;
    else printf("%d\n",a+b);                                                        
  }  
 return 0;     
}

2013-01-29