Submission #1172037

#	Time	Username	Problem	Language	Result	Execution time	Memory
1172037		AtabayRajabli	Bigger segments (IZhO19_segments)	C++20	27 / 100	1597 ms	70728 KiB

segments

#include <bits/stdc++.h>
#define int long long
#define all(v) v.begin(), v.end()
using namespace std;

const int sz = 3e3 + 1, inf = 1e18;
int n, a[sz], dp[sz][sz];

signed main()
{                                                                  
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    cin >> n;
    for(int i = 1; i <= n; i++)
    {
        cin >> a[i];
        a[i] += a[i - 1];
    }
    // i1, i2, i3, i4, i5
    // a[i5] - a[i4] >= a[i4] - a[i3] >= a[i3] - a[i2] >= a[i2] - a[i1] >= a[i1]
    for(int i = 0; i <= n; i++) fill(dp[i], dp[i] + 1 + n, inf);
    dp[0][0] = 0;
    for(int i = 1; i <= n; i++)
    {
        for(int j = i; j <= n; j++)
        {
            for(int l = i - 1; l < j; l++)
            {
                int lst = a[j] - a[l];
                if(lst >= dp[i - 1][l]) dp[i][j] = min(dp[i][j], lst);
            }
        }
    }
    for(int i = n; i >= 1; i--)
    {
        if(dp[i][n] < inf) 
        {
            cout << i;
            return 0;
        }
    }
}

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