Submission #888786

#	Time	Username	Problem	Language	Result	Execution time	Memory
888786		12345678	Kitchen (BOI19_kitchen)	C++17	100 / 100	62 ms	111360 KiB

kitchen

#include <bits/stdc++.h>

using namespace std;

const int nx=305;
int n, m, k, sm, x, dp[nx][nx*nx], c, ans=INT_MAX;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n>>m>>k;
    for (int i=1; i<=n; i++) cin>>x, sm+=x, c|=(x<k);
    for (int i=0; i<=n; i++) for (int j=1; j<nx*nx; j++) dp[i][j]=INT_MIN;
    for (int i=1; i<=m; i++)
    {
        cin>>x;
        for (int j=0; j<nx*nx; j++) dp[i][j]=dp[i-1][j];
        for (int j=0; j+x<nx*nx; j++)
        {
            dp[i][j+x]=max(dp[i][j+x], dp[i-1][j]+min(x, n));
            if (dp[i][j+x]>=n*k&&j+x>=sm) ans=min(ans, j+x-sm);
        }
        //for (int j=0; j<20; j++) cout<<i<<' '<<j<<' '<<dp[i][j]<<'\n';
    }
    if (ans==INT_MAX||c) cout<<"Impossible";
    else cout<<ans;
}

• Subtask 1: 9 / 9
• Subtask 2: 22 / 22
• Subtask 3: 20 / 20
• Subtask 4: 21 / 21
• Subtask 5: 28 / 28