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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. typedef long long ll;
  4. const int Mod=998244353;
  5.  
  6. void solve() {
  7.        ll n;
  8.        cin >> n;
  9.        if(n%2==1){
  10.         cout << n*(n-1)*(n-2);
  11.         return;
  12.        }
  13.        if(n%3==0){
  14.         cout << (n-1)*(n-2)*(n-3);
  15.         return;
  16.        }
  17.        cout << n*(n-1)*(n-3);
  18. }
  19.  
  20. int main(){ 
  21.     ios::sync_with_stdio(false);
  22.     cin.tie(nullptr);
  23.  
  24.     /*int t;
  25.     cin >> t;
  26.     while (t--)*/ solve();
  27.  
  28.  
  29.     return 0;
  30. }
  31.  
Success #stdin #stdout 0.01s 5240KB
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https://ideone.com/yvR4eo
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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