AcWing 720. 连续整数相加原题链接简单

作者：

一个不刘 , 2021-07-16 06:49:29 , 所有人可见 , 阅读 147

include [HTML_REMOVED]

using namespace std;

int main()
{
int a, n;
cin >> a;
while (cin >> n, n <= 0);

int s = 0;
for (int i = 0; i < n; i ++ ) s += a + i;
cout << s << endl;

return 0;

}