Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
111596 vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv 直线分割圆 C++ Accepted 1 MS 272 KB 125 2025-03-02 16:50:03

Tests(10/10):

Code:

#include <bits/stdc++.h> using namespace std; int main() { long long n; cin>>n; cout<<(1+n)*n/2+1; return 0; }