제출 #982213

#제출 시각아이디문제언어결과실행 시간메모리
982213Jawad_Akbar_JJ철인 이종 경기 (APIO18_duathlon)C++17
0 / 100
1 ms504 KiB
#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'; }
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