武汉科技大学ACM ：1002: A+B for Input-Output Practice (II)

Problem Description

Your task is to Calculate a + b.

Input

Input contains an integer N in the first line, and then N lines follow. Each line consists of a pair of integers a and b, separated by a space, one pair of integers per line.

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

2
1 5
10 20

Sample Output

6
30

 #include<iostream>
 #include<string>
 using namespace std;
 int main()
 {
     int n,a,b;
     int sum;
     string result;
     char s[];
     cin>>n;
     for(int i=;i<n;i++)
     {
         cin>>a;
         cin>>b;
         sum = a+b;
         sprintf(s, "%d",sum);//将整数转为字符串型
         result += s;
         result += "\n";
     }
     cout<<result;
     return ;
 }