Submission #955788

#	Time	Username	Problem	Language	Result	Execution time	Memory
955788		vjudge1	Pinball (JOI14_pinball)	C++17	0 / 100	2 ms	600 KiB

pinball

#include <bits/stdc++.h>

using namespace std;

#define int long long

int m,n,rez=INT_MAX;
int a[205],b[205],c[205],d[205];

bool func(vector<int> uredi){
    int topcinja[n+1];
    for (int i=1;i<=n;i++)
        topcinja[i]=1;
    for (auto x:uredi){
        for (int i=a[x];i<=b[x];i++)
            if (topcinja[i]==1)
                topcinja[i]=0, topcinja[c[x]]=1;
    }
    int br=0;
        for (int i=1;i<=n;i++){
            if (topcinja[i]) br++;
        }
    if (br==1) return true;
    return false;
}

void f(int red, int cena, vector<int> zemeni){
    if (red==m+1) {
        if (func(zemeni)) rez=min(rez,cena);
        return;
    }
    f(red+1,cena,zemeni);
    zemeni.push_back(red);
    f(red+1, cena+d[red], zemeni);
}

int32_t main()
{
    cin >> m >> n;
    for (int i=1;i<=m;i++){
        cin >> a[i] >> b[i] >> c[i] >> d[i];
    }
    f(1,0,{});
    if (rez==INT_MAX) cout << -1;
    else cout << rez;

    return 0;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 18
• Subtask 3: 0 / 22
• Subtask 4: 0 / 49