Submission #989304

#	Time	Username	Problem	Language	Result	Execution time	Memory
989304		sondos225	Crocodile's Underground City (IOI11_crocodile)	C++17	46 / 100	3 ms	6748 KiB

crocodile

#include "crocodile.h"
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "grader.cpp"
#endif // LOCAL
#define forr(x,i,n) for(int x=i; x<n; x++)
#define pb push_back
#define pii pair<int,int>
#define all(x) x.begin(),x.end()
#define fi first
#define se second
bool vis[100000];
bool ex[100000];
int routes[100000];
vector<pii> a[100000];
//vector<pii> dp[100000];
int dfs(int x)
{
    if (ex[x])
    {
        return 0;
    }
    if (routes[x]!=0) return routes[x];
        int ch1=INT_MAX, ch2=INT_MAX;
        for(auto y:a[x])
        {
            if (!vis[y.fi])
            {
                vis[y.fi]=1;
                int ch=(dfs(y.fi))+y.se;
                if (ch<=ch1 && ch<=ch2)
                {
                    ch2=ch1;
                    ch1=ch;
                }
                else if (ch>=ch1 && ch<=ch2)
                {
                    ch2=ch;
                }
                vis[y.fi]=0;
            }
        }
        //sort(all(ch));
        return routes[x]=ch2;
}
int travel_plan(int n, int m, int r[][2], int l[], int k, int e[])
{
    //r/l/k/e/
    forr(i,0,m)
    {
        int x=r[i][0];
        int y=r[i][1];
        a[x].pb({y,l[i]});
        a[y].pb({x,l[i]});
       // dp[x].pb(0);
       // dp[y].pb(0);
    }

    forr(i,0,k) ex[e[i]]=1;
vis[0]=1;
  return dfs(0);
}

• Subtask 1: 46 / 46
• Subtask 2: 0 / 43
• Subtask 3: 0 / 11