武汉科技大学ACM ：1001: A + B Problem

Problem Description

Calculate A + B.

Input

Each line will contain two integers A and B. Process to end of file.

Output

For each case, output A + B in one line.

Sample Input

1 1
2 2
3 3

Sample Output

2
4
6

我的代码：

 1 #include <stdio.h>
 2 int main()
 3 {
 4 int A,B,sum;
 5 while(scanf("%d%d",&A,&B) != EOF)
 6 
 7 {
 8 sum=A+B;
 9 printf("%d
",sum);
10 }
11 return 0;
12 }

其他代码：

 1 #include<stdio.h>
 2 int main()
 3 {
 4     int a, b;
 5     scanf("%d%d", &a, &b);
 6     printf("%d
",a + b);
 7     scanf("%d%d", &a, &b);
 8     printf("%d
", a + b);
 9     scanf("%d%d", &a, &b);
10     printf("%d", a + b);
11     return 0;
12 }

 1 #include <iostream>
 2 
 3 using namespace std;
 4 
 5 int main()
 6 {
 7     int a=0,b=0;
 8     while(cin>>a>>b)
 9     {
10         cout<<a+b<<endl;
11 
12     }
13 
14     return 0;
15 }