63159

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
63159	laichihao	递归求等差数列第n项的值	C++	Accepted	0 MS	248 KB	113	2025-03-21 15:09:38

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