Submission #1279490

#	Time	Username	Problem	Language	Result	Execution time	Memory
1279490		muhammad-ahmad	Airplane (NOI23_airplane)	C++20	0 / 100	28 ms	572 KiB

Main

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

#define int long long
#define endl '\n'

signed main(){
	int n, m; cin >> n >> m;
	int alt = 0, ans = n - 1;
	int lst; cin >> lst;
	for (int i = 2; i <= n; i++){
		int x; cin >> x;
		if (x  > alt){
			alt++;
			ans += x - alt;
			alt = x;
		}
		else if (x < alt){
			alt--;
			ans += alt - x;
			alt = x;
		}
	}
	cout << ans << endl;
}

• Subtask 1: 0 / 22
• Subtask 2: 0 / 10
• Subtask 3: 0 / 31
• Subtask 4: 0 / 37