Submission #306597

#	Time	Username	Problem	Language	Result	Execution time	Memory
306597		chubyxdxd	Stations (IOI20_stations)	C++14	0 / 100	961 ms	760 KiB

stations

#include "stations.h"
#include <iostream>
#include <vector>
using namespace std;
vector<int> label(int n, int k,vector<int> u,vector<int> v) {
  int in[n+10];
  for(int i=0;i<n;i++)in[i]=0;
  for(int i=0;i<n;i++){
    in[v[i]]++;
    in[u[i]]++;
  }
  int piv=0;
  for(int i=0;i<n;i++){
    if(in[i]==1){
      piv=i;
      break;
    }
  }
  //cout<<piv<<endl;
  vector<int> gg;
  gg.push_back(piv);
  for(int i=0;i<n-1;i++){
    for(int j=0;j<u.size();j++){
      if(u[j]==piv){
	gg.push_back(v[j]);
 	piv=v[j];
	break;
      }
    }
  }
  if(gg.size()==1){
    for(int i=0;i<n-1;i++){
      for(int j=0;j<u.size();j++){
      if(v[j]==piv){
	gg.push_back(u[j]);
	piv=u[j];
	break;
      }
    }
  }
  }
  //for(auto i:gg)cout<<i<<" ";
  //cout<<endl;
  vector<int> labels(n);
  for(int i=0;i<n;i++){
    //cout<<gg[i]<<" ";
    labels[gg[i]]=i;
  }
  //cout<<endl;
  return labels;
}

int find_next_station(int s, int t,vector<int> c) {
  if(t<s)return s-1;
  else return s+1;
}

Compilation message (stderr)

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:23:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for(int j=0;j<u.size();j++){
      |                 ~^~~~~~~~~
stations.cpp:33:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |       for(int j=0;j<u.size();j++){
      |                   ~^~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61