Submission #1368417

#	Time	Username	Problem	Language	Result	Execution time	Memory
1368417		12345678	Feast (NOI19_feast)	C++17	41 / 100	12 ms	26864 KiB

feast

#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int nx=2e3+5;

ll n, k, a[nx], qs[nx], dp[nx][nx];

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n>>k;
    for (int i=1; i<=n; i++) cin>>a[i], qs[i]=qs[i-1]+a[i];
    for (int i=1; i<=k; i++)
    {
        ll mx=0;
        for (int j=1; j<=n; j++)
        {
            mx=max(mx, dp[i-1][j]-qs[j]);
            dp[i][j]=max(dp[i][j-1], mx+qs[j]);
            // cout<<"debug "<<i<<' '<<j<<' '<<dp[i][j]<<'\n';
        }
    }    
    cout<<dp[k][n];
}

• Subtask 1: 0 / 4
• Subtask 2: 0 / 8
• Subtask 3: 0 / 18
• Subtask 4: 10 / 10
• Subtask 5: 11 / 11
• Subtask 6: 20 / 20
• Subtask 7: 0 / 29