Run ID | Author | Problem | Lang | Verdict | Time | Memory | Code Length | Submit Time |
---|---|---|---|---|---|---|---|---|
37211 | 张予馨 | [在线测评解答教程] 求和 | C++ | Wrong Answer | 1 MS | 248 KB | 108 | 2024-01-19 16:12:44 |
#include<iostream> using namespace std; int main() { int n; cin>>n; cout<<n*(n+1)/2; return 0; }