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Feb 28th, 2020
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C++ 0.48 KB | None | 0 0
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. long long n;
  4. long long maxsum=0,f_min=0;
  5. vector<long long> a;
  6. vector<long long> f;
  7. int main() {
  8.     ios_base::sync_with_stdio(0);
  9.     cin.tie(0);
  10.     cin>>n;
  11.     a.resize(n+1);
  12.     f.resize(n+1);
  13.     for(int i=1;i<=n;i++) cin>>a[i];
  14.     f[0]=0;
  15.     for(int i=1;i<=n;i++) f[i]=f[i-1]+a[i];
  16.     for (int i=1;i<=n;i++) {
  17.         f_min=min(f_min,f[i]);
  18.         maxsum=max(maxsum,f[i]-f_min);
  19.     }
  20.     cout<<maxsum;
  21.     return 0;
  22. }
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