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  1. #include<bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main() {
  6.     ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
  7.     int n; cin >> n;
  8.     vector<int> a(n);
  9.     for(int i = 0; i < n; i++) cin >> a[i];
  10.     int sum = 0, ans = 0;
  11.     for(int i = 0; i < n; i++){
  12.         sum += a[i];
  13.         ans = max(ans, sum);
  14.         if (sum < 0) sum = 0;
  15.     }
  16.     cout << ans;
  17.     return 0;
  18. }
Success #stdin #stdout 0.01s 5452KB
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stdin
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4
1 -2 3 -4
stdout
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3
https://ideone.com/LmvCUl
Kadane's algorithm
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
public

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