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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. long long a[100005],n;
  4. int main()
  5. {
  6.     ios_base::sync_with_stdio(false);
  7.     cin.tie(0);
  8.     if (fopen("bxh1.inp", "r"))
  9.     {
  10.         freopen("bxh1.inp", "r", stdin);
  11.         freopen("bxh1.out", "w", stdout);
  12.     }
  13.     cin >> n;
  14.     for (long long i=1; i<=n; i++)
  15.     {
  16.         cin >> a[i];
  17.     }
  18.     sort(a+1,a+1+n,greater<long long>());
  19.     long long res=1,point=1;
  20.     for (long long i=2; i<=n; i++)
  21.     {
  22.         if(a[i]!=a[i-1])
  23.         {
  24.             point++;
  25.         }
  26.         res+=point;
  27.     }
  28.     cout << res;
  29. }
  30.  
Success #stdin #stdout 0.01s 5312KB
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https://ideone.com/T9VAXp
language:
C++14 (gcc 8.3)
created:
21 hours ago
visibility:
public

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