Submission #851801

#	Time	Username	Problem	Language	Result	Execution time	Memory
851801		ntkphong	Game (IOI14_game)	C++14	Compilation error	0 ms	0 KiB

game

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

vector<int> par;
vector<vector<int>> cnt;
int nn;

int get_root(int u) {
    return u = par[u] ? u : par[u] = get_root(par[u]);
}

void initialize(int n) {    
    par.resize(n);
    for(int i = 0; i < n; i ++) par[i] = i;
    
    cnt.resize(n, vector<int> (n, 1));
    nn = n;
}

int hasEdge(int u, int v) {
    u = par[u];
    v = par[v];
    
    if(u != v) {
        if(u > v) swap(u, v);
        cnt[u][v] -- ;
        
        if(!cnt[u][v]) {
            for(int i = v + 1; i < n; i ++) cnt[u][i] += cnt[v][i];
            par[v] = u;
            
            return 1;
        }
    }
    
    return 0;
}

Compilation message (stderr)

game.cpp: In function 'int hasEdge(int, int)':
game.cpp:30:36: error: 'n' was not declared in this scope
   30 |             for(int i = v + 1; i < n; i ++) cnt[u][i] += cnt[v][i];
      |                                    ^