Submission #341711

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
341711	2020-12-30 14:18:37	ogibogi2004	Stations (IOI20_stations)	C++14	100 / 100	1174 ms	1252 KiB

stations

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#include "stations.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;
#define time afds
const int MAXN=1024;
vector<int>g[MAXN];
int depth[MAXN];
int in_time[MAXN],out_time[MAXN],time=-1;
void dfs(int u,int par)
{
  in_time[u]=++time;
  for(auto v:g[u])
  {
    if(v==par)continue;
    depth[v]=depth[u]+1;
    dfs(v,u);
  }
  out_time[u]=++time;
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
  vector<int> labels(n);
  time=-1;
  memset(depth,-1,sizeof(depth));
  for(int i=0;i<=n;i++)g[i].clear();
  for(int i=0;i<u.size();i++)
  {
    g[u[i]].push_back(v[i]);
    g[v[i]].push_back(u[i]);
  }
 
 
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Compilation message (stderr)

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:26:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |  for(int i=0;i<u.size();i++)
      |              ~^~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:62:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |   for(int i=0;i<c.size();i++)
      |               ~^~~~~~~~~

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