Submission

Score: 0

User: mister_o_hater_no1

Problemset: นักบินอวกาศ

Language: cpp

Time: 1.095 second

Submitted On: 2025-09-11 15:50:05

#include <bits/stdc++.h>
using namespace std;

int find_time(int n) {
	if(n== 0) {
		return 0;
	}
	if(n== 1) {
		return 4;
	}
	return find_time(n- 1)+ (find_time(n- 1)- find_time(n- 2)+ 6);
}

int main() {
    cin.tie(nullptr)->sync_with_stdio(0);
    int n;cin>> n;
    cout<< find_time(n);

    return 0;
}