Submission #1116226

#	Time	Username	Problem	Language	Result	Execution time	Memory
1116226		epicci23	Cigle (COI21_cigle)	C++17	48 / 100	1048 ms	196680 KiB

cigle

#include "bits/stdc++.h"
#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;

void _(){
 int n; cin >> n;
 int ar[n+5];
 for(int i=1;i<=n;i++) cin >> ar[i];
 
 int dp[n+5][n+5];
 memset(dp,0,sizeof(dp));
 for(int i=1;i<=n;i++){
   for(int j=i;j<=n;j++){
    // last block starts from right to left
    vector<int> s;
    int sum = 0;
    for(int z = j; z > i; z--){
      sum += ar[z];
      s.push_back(sum);
    }
   	int p = j + 1, cur = 0, cost = 0;
   	int _p = 0;
   	while(p <= n){
   	 while(_p < sz(s) && s[_p] < cur) _p++;
     if(_p < sz(s) && s[_p] == cur) cost++;
     cur += ar[p];
     dp[j+1][p] = max(dp[j+1][p], dp[i][j] + cost);
   	 p++;
   	}

   	// last block starts from left to right

   }
 }	

 int ans = 0;
 for(int i=1;i<=n;i++) ans = max(ans, dp[i][n]);

 cout << ans << '\n';
}

int32_t main(){
  cin.tie(0); ios::sync_with_stdio(0);
  int tc=1;//cin >> tc;
  while(tc--) _();
  return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 11 / 11
• Subtask 3: 13 / 13
• Subtask 4: 15 / 15
• Subtask 5: 0 / 52