Submission #722536

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
722536	2023-04-12 08:38:29	joelgun14	Stations (IOI20_stations)	C++17	100 / 100	922 ms	6016 KiB

stations

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#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
const int lim = 1e5 + 5;
int subtree[lim];
bool vis[lim];
vector<int> edges[lim];
void get_subtree(int nd) {
  vis[nd] = 1;
  subtree[nd] = 1;
  for(auto i : edges[nd]) {
    if(!vis[i]) {
      get_subtree(i);
      subtree[nd] += subtree[i];
    }
  }
  //cout << nd << " " << subtree[nd] << endl;
}
vector<int> ret;
void dfs(int nd, int l, int r, bool pos) {
  vis[nd] = 1;
  if(!pos) {
    ret[nd] = l, ++l;
  }
  else {
    ret[nd] = r, --r;
  }
  //cout << nd << " " << l << " " << r << " " << ret[nd] << endl;
  for(auto i : edges[nd]) {
    if(!vis[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:40:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |  for(int i = 0; i < u.size(); ++i) {
      |                 ~~^~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:77:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |   for(int i = 0; i < c.size(); ++i) {
      |                  ~~^~~~~~~~~~
stations.cpp:93:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   93 |   for(int i = 0; i < seg.size(); ++i) {
      |                  ~~^~~~~~~~~~~~
stations.cpp:104:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  104 |   for(int i = 0; i < c.size() - 1; ++i) {
      |                  ~~^~~~~~~~~~~~~~
stations.cpp:108:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  108 |   for(int i = 0; i < seg.size(); ++i) {
      |                  ~~^~~~~~~~~~~~

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