Submission #1078343

#	Time	Username	Problem	Language	Result	Execution time	Memory
1078343		kilikuma	Duathlon (APIO18_duathlon)	C++17	0 / 100	1 ms	348 KiB

count_triplets

#include <bits/stdc++.h>
 
using namespace std;
 
int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
 
	int n; cin >> n;
 
	cout << ((n * (n - 1) * (n - 2)) / 6) * 2 << '\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