Submission #741099

#	Time	Username	Problem	Language	Result	Execution time	Memory
741099		almothana05	Werewolf (IOI18_werewolf)	C++14	0 / 100	4067 ms	26972 KiB

werewolf

#include "werewolf.h"
#include<bits/stdc++.h>
using namespace std;
int vis[2][300000];
vector<int>kinder[300000] , erg;
priority_queue<pair<int ,int> >q;
int bfs(int x , int en , int l , int r){
  if(x >= l){
    q.push({0 , x});
  }
  if(x <= r){
    q.push({-1 , x});
  }
  while(q.size()){
    int jet = q.top().second , cmp = q.top().first;
    q.pop();
    for(int i = 0 ; i < kinder[jet].size() ; i++){
      int kind = kinder[jet][i];
      if(cmp == -1){
        if(kind <= r && vis[1][kind] == 0){
          vis[1][kind] = 1;
          q.push({-1 , kind});
        }
      }
      else{
        if(kind <= r && vis[1][kind] == 0 && (kind >= l || jet <= r)){
          vis[1][kind] = 1;
          q.push({-1 , kind});
        }
        if(kind >= l && vis[0][kind] == 0){
          vis[0][kind] = 1;
          q.push({0 , kind});
        }
      }
      
    }
  }
  return vis[1][en] == 1;
}
vector<int> check_validity(int menge, vector<int> x, vector<int> y,
                                vector<int> s, vector<int> e,
                                vector<int> l, vector<int> r) {
  if(x.size() == menge - 1){

  } 
  for(int i = 0 ; i < menge ; i++){
    kinder[x[i]].push_back(y[i]);
    kinder[y[i]].push_back(x[i]);
  }
  for(int i = 0 ; i < s.size() ; i++){
    for(int i = 0 ; i < menge ; i++){
      vis[0][i] = 0;
      vis[1][i] = 0;
    }
    int x = bfs(s[i] , e[i] , l[i] , r[i]);
    erg.push_back(x);
  }                
  return erg;
}

Compilation message (stderr)

werewolf.cpp: In function 'int bfs(int, int, int, int)':
werewolf.cpp:17:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i = 0 ; i < kinder[jet].size() ; i++){
      |                     ~~^~~~~~~~~~~~~~~~~~~~
werewolf.cpp: In function 'std::vector<int> check_validity(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
werewolf.cpp:43:15: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   43 |   if(x.size() == menge - 1){
      |      ~~~~~~~~~^~~~~~~~~~~~
werewolf.cpp:50:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |   for(int i = 0 ; i < s.size() ; i++){
      |                   ~~^~~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 8
• Subtask 3: 0 / 34
• Subtask 4: 0 / 51