Submission #307183

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
307183	2020-09-27 09:56:41	FelixMP	Stations (IOI20_stations)	C++14	100 / 100	985 ms	1196 KiB

stations

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    #include "stations.h"
    #include <vector>
    #include <algorithm>
    #include <utility>
    #include <iostream>
     
    using namespace std;
    typedef vector<int> vi;
    typedef vector<vi> vvi;
    typedef pair<int, int> ii;
     
    vvi al;
    vi rans;
    int ft = 0;
     
    ii dfs(int v, int p, int r) {
     
      int cmin =  1002;
      int cmax = -1;
     
      for(int i=0; i < (int)al[v].size(); ++i) {
        int u = al[v][i];
        if(u == p) continue;
        ii x = dfs(u, v, !r);
     
        //cerr << "VISITED " << u << " returned " << x.first << " " << x.second << endl;
     
        cmin = min(cmin, x.first);
        cmax = max(cmax, x.second);
      }
 
 
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Compilation message (stderr)

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:130:5: warning: control reaches end of non-void function [-Wreturn-type]
  130 |     }
      |     ^

• Subtask 1: 5 / 5
• Subtask 2: 8 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 61 / 61