Submission #851518

#	Time	Username	Problem	Language	Result	Execution time	Memory
851518		NeroZein	Bigger segments (IZhO19_segments)	C++17	37 / 100	1549 ms	9300 KiB

segments

#include "bits/stdc++.h"
using namespace std;

const int N = 5e5 + 5;

int a[N], f[N];
long long pref[N]; 
pair<int, long long> dp[N]; 

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n;
  cin >> n;
  for (int i = 1; i <= n; ++i) {
    cin >> a[i];
    pref[i] = pref[i - 1] + a[i]; 
  }
  dp[1] = {1, a[1]};
  f[1] = 1; 
  for (int i = 2; i <= n; ++i) {
    for (int j = i - 1; j >= 0; --j) {
      if (dp[j].second <= pref[i] - pref[j]) {
        dp[i].first = dp[j].first + 1;
        dp[i].second = pref[i] - pref[j];
        break;
      }
    }
  }
  cout << dp[n].first << '\n';
  return 0;
}

• Subtask 1: 13 / 13
• Subtask 2: 14 / 14
• Subtask 3: 10 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27