Submission #138903

#	Time	Username	Problem	Language	Result	Execution time	Memory
138903		Hassoony	Werewolf (IOI18_werewolf)	C++17	0 / 100	211 ms	23788 KiB

werewolf

#include <bits/stdc++.h>
#include "werewolf.h"
//#include "grader.cpp"

using namespace std;
const int MX=3009;
int vis[MX][4],n;
vector<int>v[MX];
vector<int> check_validity(int N, vector<int> X, vector<int> Y,
                                vector<int> S, vector<int> E,
                                vector<int> L, vector<int> R){
    n=N;
    for(int i=0;i<X.size();i++){
        v[X[i]].push_back(Y[i]);
        v[Y[i]].push_back(X[i]);
    }
    vector<int>ans;
    for(int i=0;i<S.size();i++){
        for(int j=0;j<n;j++){
            for(int k=0;k<3;k++){
                vis[j][k]=0;
            }
        }
        int s=S[i],e=E[i],l=L[i],r=R[i];
        priority_queue<pair<int,int> >pq;
        pq.push({0,s});
        while(!pq.empty()){
            int x=pq.top().second,type=pq.top().first;pq.pop();
            if(type == 0){
                if(x < l)continue;
            }
            if(type == 1){
                if(x > r)continue;
            }
            if(vis[x][type])continue;
            vis[x][type]=1;
            if(type == 1){
                for(auto pp:v[x])
                    pq.push({type,pp});
            }
            else{
                for(auto pp:v[x]){
                    pq.push({type,pp});
                }
                if(x >= l && x <= r){
                    for(auto pp:v[x])
                        pq.push({1,pp});
                }
            }
        }
        if(vis[e][1])ans.push_back(1);
        else ans.push_back(0);
    }
    return ans;
}

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:13:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<X.size();i++){
                 ~^~~~~~~~~
werewolf.cpp:18:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<S.size();i++){
                 ~^~~~~~~~~

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