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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. #define int long long
  4. using namespace std;
  5. const int maxn = 1e6+7;
  6. ll n,k,ans=LLONG_MIN,pre[maxn];
  7. int32_t main()
  8. {
  9.     ios_base::sync_with_stdio(false);
  10.     cin.tie(NULL);
  11.     freopen("NGHENHAC.INP","r",stdin);
  12.     freopen("NGHENHAC.OUT","w",stdout);
  13.  
  14.     cin >> n >> k;
  15.     for (int i=1;i<=n;i++)
  16.     {
  17.         ll x; cin >> x;
  18.         pre[i] = pre[i-1] + x;
  19.     }
  20.  
  21.     ll l=1;
  22.     for (int r=1;r<=n;r++)
  23.     {
  24.         ll sum = pre[r] - pre[l-1];
  25.         while (sum > k && l<r)
  26.         {
  27.             sum -= pre[l];
  28.             l++;
  29.         }
  30.         ans = max(ans,r-l+1);
  31.     }
  32.     cout << ans;
  33. }
  34.  
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/2YSrsP
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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