56896

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
56896	zhangweiran	求和	C++	Accepted	0 MS	248 KB	147	2024-11-16 23:28:55

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