63157

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
63157	laichihao	递归求等差数列第n项的值	C++	Wrong Answer	0 MS	252 KB	113	2025-03-21 15:09:13

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