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  1. #include<bits/stdc++.h>
  2. #define int long long
  3. using namespace std;
  4. signed main() {
  5.      ios_base::sync_with_stdio(false);
  6.     cin.tie(NULL);cout.tie(NULL);
  7.     int q;
  8.     cin >> q;
  9.     int n, k;
  10.     cin >> n >> k;
  11.     int a[n + 1];
  12.     map<int, int> b;
  13.     for (int i = 1; i <= n; i++) {
  14.         cin >> a[i];
  15.     }
  16.     int dem = 0, dem2 = 0, ans=0;
  17.     for (int l = 1, r = 1; r <= n; r++) {
  18.         if (b[a[r]] == 0) {
  19.             dem++;
  20.             b[a[r]]=1;
  21.         }
  22.         else b[a[r]]++;
  23.         while (dem > k) {
  24.             b[a[l]]--;
  25.             if (b[a[l]] == 0) {
  26.                 dem--;
  27.             }
  28.             l++;
  29.         }
  30.         ans += r - l + 1;
  31.     }
  32.     cout << ans << "\n";
  33.     return 0;
  34. }
  35.  
Runtime error #stdin #stdout 0.02s 5308KB
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/Dbi7Nu
language:
C++14 (clang 8.0)
created:
87 days ago
visibility:
secret

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