Submission #1015106

#	Time	Username	Problem	Language	Result	Execution time	Memory
1015106		nisanduu	Werewolf (IOI18_werewolf)	C++14	Compilation error	0 ms	0 KiB

werewolf

#include <bits/stdc++.h> 
using namespace std;
typedef long long ll;

// 1 - Wolf
// 0 - Human

bool f=0;

void dfs1(vector<ll>&arr,vector<vector<ll>>&adj,vector<ll>&vis,ll L,ll R,ll node,ll D){
    if(node>L&&node!=D) arr[node]=1;
    for(auto el:adj[node]){
        if(!vis[el]){
            vis[el]=1;
            dfs1(arr,adj,vis,L,R,el,D);
        }
    }
}

void dfs2(vector<ll>&arr,vector<vector<ll>>&adj,vector<ll>&vis,ll L,ll R,ll node,ll E){
    if(node<R&&node!=E) {
        if(arr[node]==1){
            f=1;
            return;
        }
    }
    for(auto el:adj[node]){
        if(!vis[el]){
            vis[el]=1;
            dfs2(arr,adj,vis,L,R,el,E);
        }
    }
}

int[] check_validity(int	N,	int[]	X,	int[]	Y,	int[]	S,	int[]	E,	int[]
	L,	int[]	R){

    
        vector<vector<ll>> adj(N+1);
        ll M = X.size();
        for(ll i=0;i<M;i++){
            adj[X[i]].push_back(Y[i]);
            adj[Y[i]].push_back(X[i]);
        }
        
        ll Q = S.size();
        int ans[Q];
        for(ll i=0;i<Q;i++){
            vector<ll> arr(N+1,-1),vis1(N+1),vis2(N+1);
            f=0;
            dfs1(arr,adj,vis1,L[i],R[i],S[i],E[i]);
            dfs2(arr,adj,vis2,L[i],R[i],E[i],S[i]);
            vis1[S[i]]=1;
            vis2[E[i]]=1;
            if(f){
                ans[i]=1;
            }else{
                ans[i]=0;
            }
        }
        return ans;
}

Compilation message (stderr)

werewolf.cpp:35:4: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   35 | int[] check_validity(int N, int[] X, int[] Y, int[] S, int[] E, int[]
      |    ^
werewolf.cpp:35:4: error: structured binding declaration cannot have type 'int'
   35 | int[] check_validity(int N, int[] X, int[] Y, int[] S, int[] E, int[]
      |    ^~
werewolf.cpp:35:4: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
werewolf.cpp:35:4: error: empty structured binding declaration
werewolf.cpp:35:7: error: expected initializer before 'check_validity'
   35 | int[] check_validity(int N, int[] X, int[] Y, int[] S, int[] E, int[]
      |       ^~~~~~~~~~~~~~