Submission #420386

#	Time	Username	Problem	Language	Result	Execution time	Memory
420386		A_D	Werewolf (IOI18_werewolf)	C++14	15 / 100	4064 ms	30500 KiB

werewolf

#include "werewolf.h"

#include <bits/stdc++.h>

using namespace std;
const int N=2e5+100;
vector<int> g[N];
bool vis[N][2];
int l,r;
bool ok(int u,int f)
{
    if(f==1){
        if(u>r)return 0;
    }
    else{
        if(u<l)return 0;
    }
    return 1;
}
void dfs(int u,int f)
{
    if(ok(u,f)==0)return;
//    cout<<u<<" "<<f<<endl;
    vis[u][f]=1;
    if(f==0){
        dfs(u,1);
    }
    for(auto x:g[u]){
        if(vis[x][f])continue;
        dfs(x,f);
    }
}
vector<int> check_validity(int N,vector<int> X,vector<int> Y,vector<int> S,vector<int> E,vector<int> L,vector<int> R){
    vector<int> ret;
    for(int i=0;i<X.size();i++){
        g[X[i]].push_back(Y[i]);
        g[Y[i]].push_back(X[i]);
    }
    for(int t=0;t<S.size();t++){
        for(int i=0;i<=N;i++){
            vis[i][0]=0;
            vis[i][1]=0;
        }
        l=L[t];
        r=R[t];
        dfs(S[t],0);
  //      cout<<"\n\n";
        if(vis[E[t]][1]){
            ret.push_back(1);
        }
        else{
            ret.push_back(0);
        }
    }
    return ret;
}

/*


6 6 3
5 1
1 2
1 3
3 4
0 3
2 5
4 2 1 2
4 2 2 2
5 4 3 4




*/

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:35:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for(int i=0;i<X.size();i++){
      |                 ~^~~~~~~~~
werewolf.cpp:39:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     for(int t=0;t<S.size();t++){
      |                 ~^~~~~~~~~

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