Submission #637330

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
637330	2022-09-01 11:31:02	Fidan	Thousands Islands (IOI22_islands)	C++17	31 / 100	1096 ms	3412 KiB

islands

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#include <bits/stdc++.h>
#include <variant>
#include "islands.h"
using namespace std;
typedef int ll;
void dfs1(ll k, vector<vector<pair<ll, ll>>> &g, vector<bool> &used){
  if(used[k]) return;
  used[k]=true;
  for(ll i=0; i<g[k].size(); i++){
    dfs1(g[k][i].first, g, used);
  }
}
vector<ll> s;
bool dfs(ll k, vector<vector<ll>> &g, vector<bool> &used){
  s.push_back(k);
  if(used[k]){
    return true;
  }
  used[k]=true;
  for(ll i:g[k]) {
    if(dfs(i, g, used)) return true;
  }
  used[k]=false;
  s.pop_back();
  return false;
}
variant<bool, vector<int>> find_journey(int n, int m, vector<int> u, vector<int> v){
  bool bo=true;
  if(m%2==1) bo=false;
  if(bo){
 
 
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Compilation message (stderr)

islands.cpp: In function 'void dfs1(ll, std::vector<std::vector<std::pair<int, int> > >&, std::vector<bool>&)':
islands.cpp:9:15: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |  for(ll i=0; i<g[k].size(); i++){
      |              ~^~~~~~~~~~~~
islands.cpp: In function 'std::variant<bool, std::vector<int, std::allocator<int> > > find_journey(int, int, std::vector<int>, std::vector<int>)':
islands.cpp:147:16: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  147 |   for(ll i=0; i<to.size()-1; i++){
      |               ~^~~~~~~~~~~~
islands.cpp:150:16: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  150 |   for(ll i=0; i<c.size()-1; i++){
      |               ~^~~~~~~~~~~
islands.cpp:153:16: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  153 |   for(ll i=0; i<c.size()-1; i++){
      |               ~^~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 21 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45