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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. const int maxn = 1e6;
  6.  
  7. int n, m, a[maxn+1];
  8. long long ans = 0;
  9. vector<int> v;
  10.  
  11. void sub1()
  12. {
  13.     for (int i = 1; i <= n; i++)
  14.     {
  15.         bool check = 0;
  16.         for (int j = i; j <= n; j++)
  17.         {
  18.             if (a[j] >= m) check = 1;
  19.             if (check)
  20.             {
  21.                 ans++;
  22.                 continue;
  23.             }
  24.         }
  25.     }
  26.     cout << ans;
  27. }
  28.  
  29. void sub3()
  30. {
  31.     int l = 1, r;
  32.     for (r = 1; r <= n; r++)
  33.     {
  34.         if (a[r] >= m) v.push_back(r);
  35.         int vsize = v.size();
  36.         while (vsize > 0)
  37.         {
  38.             ans += n - r + 1;
  39.             if (a[l] >= m) v.erase(v.begin(), v.begin() + 1);
  40.             l++;
  41.             vsize = v.size();
  42.         }
  43.     }
  44.     cout << ans;
  45. }
  46.  
  47. int main()
  48. {
  49.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  50.     freopen("COUNT.INP", "r", stdin);
  51.     freopen("COUNT.OUT", "w", stdout);
  52.     cin >> n >> m;
  53.     for (int i = 1; i <= n; i++) cin >> a[i];
  54.     if (n <= 1e3) sub1();
  55.     else sub3();
  56. }
  57.  
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/LRHWIb
language:
C++14 (gcc 8.3)
created:
7 days ago
visibility:
public

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