Submission #344531

#	Time	Username	Problem	Language	Result	Execution time	Memory
344531		tata666	Bigger segments (IZhO19_segments)	C++17	13 / 100	1588 ms	492 KiB

segments

#include <bits/stdc++.h>

#define pb push_back
#define F first
#define S second

using namespace std;

typedef long long llong;

const int MOD = 1e9 + 7;
const int MXN = 4e5 + 7;
const llong INF = 1e18 + 7;

int n, ans;
llong pref[MXN], a[MXN];

void make(int l, int r, int tl, int tr, int cnt){
  if(pref[r] - pref[l - 1] < pref[tr] - pref[tl - 1]){
    return;
  }
  if(r == n){
    ans = max(ans, cnt);
    return;
  }
  for(int j = r + 1; j <= n; j++){
    make(r + 1, j, l, r, cnt + 1);
  }
}

int main(){
  ios_base::sync_with_stdio(0);
  cin >> n;
  for(int i = 1; i <= n; i++){
    cin >> a[i];
    pref[i] = pref[i - 1] + a[i];
  }
  for(int i = 1; i <= n; i++){
    make(1, i, 1, 0, 1);
  }
  cout << ans;
  return 0;
}

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