Submission #82476

#	Time	Username	Problem	Language	Result	Execution time	Memory
82476		namps	Commuter Pass (JOI18_commuter_pass)	C++14	0 / 100	67 ms	2112 KiB

commuter_pass

#include <bits/stdc++.h>

using namespace std;
long long n,m,s,t,u,v;
long long l,r,h;
long long kq;
long long dp[305][305];
int main()
{
   // freopen("vao.inp","r",stdin);
    cin>>n>>m;
    cin>>s>>t;
    cin>>u>>v;
    for (long long i=1;i<=n;i++)
    for (long long j=1;j<=n;j++) dp[i][j]=10000000000000000;
    for (long long i=1;i<=n;i++) dp[i][i]=0;
    while (m--)
    {
        cin>>l>>r>>h;
        dp[l][r]=min(dp[l][r],h);
        dp[r][l]=dp[l][r];
    }
    for (long long k=1;k<=n;k++)
    for (long long i=1;i<=n;i++)
    for (long long j=1;j<=n;j++)
    {
        dp[i][j]=min(dp[i][j],dp[i][k]+dp[k][j]);
    }
    kq=10000000000000000;
    for (long long i=1;i<=n;i++)
    for (long long j=1;j<=n;j++)
    {
        if (dp[s][t]==dp[s][i]+dp[i][j]+dp[j][t])
        {
            kq=min(kq,dp[i][u]+dp[j][v]);
        }
    }
    cout<<kq;
    return 0;
}

• Subtask 1: 0 / 16
• Subtask 2: 0 / 15
• Subtask 3: 0 / 24
• Subtask 4: 0 / 45