Submission #982213

#	Time	Username	Problem	Language	Result	Execution time	Memory
982213		Jawad_Akbar_JJ	철인 이종 경기 (APIO18_duathlon)	C++17	0 / 100	1 ms	504 KiB

count_triplets

#include <iostream>

using namespace std;
#define int long long

signed main(){
	int n,m;
	cin>>n>>m;
	int ans = 0;
	for (int i=1;i<=n;i++){
		ans += (i - 1) * (n - i) * 2;
	}
	if (m == n)
		ans = n * (n - 1) * (n - 2);
	cout<<ans<<'\n';
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 11
• Subtask 3: 0 / 8
• Subtask 4: 0 / 10
• Subtask 5: 0 / 13
• Subtask 6: 0 / 15
• Subtask 7: 0 / 20
• Subtask 8: 0 / 8
• Subtask 9: 0 / 10