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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. #define nmax 1000005
  4. #define mod 1000000007
  5. #define tt ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(0);
  6. #define co cout<<"Yes";
  7. #define ko cout<<"No";return 0;
  8. #define NAME "QUYLUAT"
  9. using namespace std;
  10. ll n,x;
  11. ll a[nmax];
  12. ll tong=0,dem=0;
  13. int main()
  14. {
  15.     tt;
  16.     if(fopen(NAME".inp","r"))
  17.     {
  18.         freopen(NAME".inp","r",stdin);
  19.         freopen(NAME".out","w",stdout);
  20.     }
  21.     cin>>n>>x;
  22.     for(int i=1;i<=n;i++)
  23.     {
  24.         cin>>a[i];
  25.     }
  26.     int l=1;
  27.     for(int r=1;r<=n;r++)
  28.     {
  29.             tong+=a[r];
  30.         while(tong>x)
  31.         {
  32.             tong-=a[l];
  33.             l++;
  34.         }
  35.         dem+=(r-l+1);
  36.     }
  37.     cout<<dem;
  38.     return 0;
  39. }
  40.  
Success #stdin #stdout 0.01s 5316KB
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https://ideone.com/Qcwlg3
language:
C++14 (gcc 8.3)
created:
5 days ago
visibility:
public

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