Submission #114111

#	Time	Username	Problem	Language	Result	Execution time	Memory
114111		Saboon	Asceticism (JOI18_asceticism)	C++14	4 / 100	1077 ms	384 KiB

asceticism

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int a[20];

int main(){
	ios_base::sync_with_stdio(false);
	int n, k;
	cin >> n >> k;
	for (int i = 1; i <= n; i++)
		a[i] = i;
	int cnt = 0;
	do{
		int p = 1;
		for (int i = 2; i <= n; i++)
			p += (a[i] < a[i - 1]);
		cnt += (p == k);
	}while (next_permutation(a + 1, a + n + 1));
	cout << cnt << endl;
}

• Subtask 1: 4 / 4
• Subtask 2: 0 / 20
• Subtask 3: 0 / 25
• Subtask 4: 0 / 51