Submission #299661

#	Time	Username	Problem	Language	Result	Execution time	Memory
299661		TMJN	Werewolf (IOI18_werewolf)	C++17	15 / 100	4042 ms	21880 KiB

werewolf

#include "werewolf.h"
#include <bits/stdc++.h>
using namespace std;

vector<int>V[200000];
bool vis1[200000],vis2[200000];

vector<int>check_validity(int N,vector<int>X,vector<int>Y,vector<int>S,vector<int>E,vector<int>L,vector<int>R){
	int Q=S.size();
	for(int i=0;i<X.size();i++){
		V[X[i]].push_back(Y[i]);
		V[Y[i]].push_back(X[i]);
	}
	vector<int>res(Q,0);
	for(int i=0;i<Q;i++){
		for(int j=0;j<N;j++){
			vis1[j]=vis2[j]=false;
		}
		queue<int>que;
		que.push(S[i]);
		while(!que.empty()){
			int x=que.front();
			que.pop();
			if(vis1[x]||x<L[i])continue;
			vis1[x]=true;
			for(int j:V[x]){
				que.push(j);
			}
		}
		que.push(E[i]);
		while(!que.empty()){
			int x=que.front();
			que.pop();
			if(vis2[x]||x>R[i])continue;
			vis2[x]=true;
			for(int j:V[x]){
				que.push(j);
			}
		}
		for(int j=0;j<N;j++){
			if(vis1[j]&&vis2[j])res[i]=1;
		}
	}
	return res;
}

Compilation message (stderr)

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:10:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |  for(int i=0;i<X.size();i++){
      |              ~^~~~~~~~~

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