Submission #1033491

#	Time	Username	Problem	Language	Result	Execution time	Memory
1033491		tvladm2009	Cigle (COI21_cigle)	C++17	48 / 100	1071 ms	9828 KiB

cigle

#include <bits/stdc++.h>
 
using namespace std;
 
#define x first
#define y second
#define sz(a) a.size()

typedef long long ll;

const int N = 5e3 + 7;

int a[N];
int dp[N][N];

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    for (int i = 0; i < n; i++)
        cin >> a[i];
    
    for (int i = 0; i < n; i++) {
        for (int j = i; j < n; j++) {
            int cnt = 0;
            int cur = i;
            int sa = 0;
            int sb = 0;
            for (int k = i - 1; k >= 0; k--) {
                sa += a[k];
                while (cur <= j && sb < sa) {
                    sb += a[cur];
                    cur++;
                }
                dp[i][j] = max(dp[i][j], dp[k][i - 1] + cnt);
                if (sa == sb && cur <= j) 
                    cnt++;
            }
        }
    }
    int ans = 0;
    for (int i = 0; i < n; i++) 
        ans = max(ans, dp[i][n - 1]);
    cout << ans << "\n";
    return 0;
}
 

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