Submission #858844

#	Time	Username	Problem	Language	Result	Execution time	Memory
858844		Tenis0206	Popeala (CEOI16_popeala)	C++11	26 / 100	2036 ms	3676 KiB

popeala

#include <bits/stdc++.h>

using namespace std;

const int tmax = 2e4;
const int nmax = 50;
const int oo = INT_MAX;

int n,t,s;
int p[tmax + 5];
int sp[tmax + 5];

char sc[nmax + 5][tmax + 5];

int l[nmax + 5];

int dp[tmax + 5][nmax + 5];

int get_min(int nr, int k, int st, int dr)
{
    if(st > dr)
    {
        return oo;
    }
    int rez = oo;
    for(int i=st;i<=dr;i++)
    {
        if(dp[i - 1][k - 1] == oo)
        {
            continue;
        }
        rez = min(rez, dp[i - 1][k - 1] - nr * sp[i - 1]);
    }
    return rez;
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    #ifdef home
    freopen("nr.in","r",stdin);
    freopen("nr.out","w",stdout);
    #endif // home
    cin>>n>>t>>s;
    for(int i=1;i<=t;i++)
    {
        cin>>p[i];
        sp[i] = sp[i - 1] + p[i];
    }
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=t;j++)
        {
            cin>>sc[i][j];
        }
    }
    for(int i=0;i<=t;i++)
    {
        for(int k=0;k<=s;k++)
        {
            dp[i][k] = oo;
        }
    }
    dp[0][0] = 0;
    for(int i=1;i<=t;i++)
    {
        vector<int> vl;
        for(int j=1;j<=n;j++)
        {
            if(sc[j][i] == '0')
            {
                l[j] = i;
            }
            vl.push_back(l[j]);
        }
        sort(vl.begin(),vl.end());
        vl.push_back(i);
        for(int k=1;k<=s && k<=i;k++)
        {
            int last = 0;
            for(int nr=0;nr<=n;nr++)
            {
                int val = get_min(nr, k, last + 1, vl[nr]);
                if(val != oo)
                {
                    val = val + nr * sp[i];
                }
                dp[i][k] = min(dp[i][k], val);
                last = vl[nr];
            }
        }
    }
    for(int k=1;k<=s;k++)
    {
        cout<<dp[t][k]<<'\n';
    }
    return 0;
}

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 0 / 74