Submission #895396

#	Time	Username	Problem	Language	Result	Execution time	Memory
895396		SalihSahin	Game (IOI14_game)	C++14	Compilation error	0 ms	0 KiB

game

#include<bits/stdc++.h>
#define pb push_back
#define mp make_pair
using namespace std;
#include "game.h"

int N;
vector<vector<int> > adj;
vector<int> vis;

void dfs(int node){
    vis[node] = 1;

    for(int i = 1; i <= N; i++){
        if(!vis[i] && adj[node][i]){
            dfs(i);
        }
    }
}

void initialize(int n){
    N = n;
    vector<int> v;
    v.assign(n+1, 0);
    for(int i = 0; i <= n; i++){
        adj.pb(v);
    }
    vis.assign(n+1, 0);
}

int hasEdge(int u, int v) {
    adj[u][v] = 0;
    adj[v][u] = 0;
    dfs(u);
    int cnt = 0;
    for(int i = 1; i <= N; i++){
        if(vis[i]) cnt++;
        vis[i] = 0;
    }

    if(cnt != n){
        return 1;
    }
    else{
        adj[u][v] = adj[v][u] = 1;
        return 0;
    }
}

/*
int read_int() {
    int x;
    assert(scanf("%d", &x) == 1);
    return x;
}

int main() {
    int n, u, v;
    n = read_int();
    initialize(n);
    for (int i = 0; i < n * (n - 1) / 2; i++) {
        u = read_int();
        v = read_int();
        printf("%d\n", hasEdge(u, v));
    }
    return 0;
}
*/

Compilation message (stderr)

game.cpp: In function 'int hasEdge(int, int)':
game.cpp:41:15: error: 'n' was not declared in this scope
   41 |     if(cnt != n){
      |               ^
game.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type]
   48 | }
      | ^