Submission #955773

#	Time	Username	Problem	Language	Result	Execution time	Memory
955773		vjudge1	Pinball (JOI14_pinball)	C++17	11 / 100	1053 ms	169356 KiB

pinball

#include <bits/stdc++.h>

using namespace std;
vector<tuple<long long,long long,long long,long long> > v;
long long n,m;
map<tuple<long long,long long,long long>,bool> visited;
map<tuple<long long,long long,long long>,long long> dp;
bool gotovo=false;

long long f(long long poz,long long l,long long r)
{
    if (poz==-1)
    {
        if (l==1 && r==n)
        {
            gotovo=true;
            return 0;
        }
        return 1000000000000000;
    }
    if (visited[{poz,l,r}]) return dp[{poz,l,r}];

    long long op1=f(poz-1,l,r);
    long long op2=1000000000000000;

    long long a=get<0>(v[poz]),b=get<1>(v[poz]),c=get<2>(v[poz]);
    if (c>=l && c<=r) op2=f(poz-1,min(a,l),max(b,r))+get<3>(v[poz]);

    long long odg=min(op1,op2);
    visited[{poz,l,r}]=true;
    dp[{poz,l,r}]=odg;
    return odg;
}

int main()
{
    cin>>m>>n;

    for (long long i=0;i<m;i++)
    {
        long long a,b,c,d;
        cin>>a>>b>>c>>d;
        v.push_back({a,b,c,d});
    }

    long long odg=1000000000000000;
    for (long long i=m-1;i>=0;i--)
        odg = min(odg,get<3>(v[i])+f(i-1,get<0>(v[i]),get<1>(v[i])));

    if (gotovo==false) odg=-1;
    cout<<odg<<endl;
    return 0;
}

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