A+B for Input-Output Practice (VI) （C++代码）

#include<iostream>

using namespace std;

int main()

{

int n, x, s = 0;

while(cin>>n)

{

for (int i = 0; i < n; i++)

{

cin >> x;

s += x;

}

cout << s << endl;

s = 0;

}

return 0;

}