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 ;
}