Submission #293576

#	Time	Username	Problem	Language	Result	Execution time	Memory
293576		phillip	Pinball (JOI14_pinball)	C++14	11 / 100	1086 ms	512 KiB

pinball

#include <bits/stdc++.h>
#define ll long long
#define fast cin.tie(0);cout.tie(0);
#define order ios::sync_with_stdio(0);ios_base::sync_with_stdio(0);
#define pb push_back
using namespace std;
int n,m,a[200009],b[200009],c[200009];
ll d[200009],ans;
ll mxv=1e9;
ll bt(int x,int l,int r)
{
    if(x==-1)
    {
        if(l==1&&r==n)return 0;
        else return mxv;
    }
    ll ret=mxv;
    ret=bt(x-1,l,r);
    if(l<=c[x]&&c[x]<=r)ret=min(ret,d[x]+bt(x-1,min(l,a[x]),max(r,b[x])));
    return ret;
}
int main()
{
    fast order
    mxv*=mxv;
    cin>>m>>n;
    for(int i=0;i<m;i++)cin>>a[i]>>b[i]>>c[i]>>d[i];
    ans=mxv;
    for(int i=0;i<m;i++)
    {
        ans=min(ans,bt(i-1,a[i],b[i])+d[i]);
    }
    if(ans==mxv)cout<<-1;
    else cout<<ans;
}

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