Submission #672635

#	Time	Username	Problem	Language	Result	Execution time	Memory
672635		blue	Game (IOI14_game)	C++17	Compilation error	0 ms	0 KiB

game

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

using vi = vector<int>;

int n;



struct dsu
{
  vi par;
  vi st;
  
  dsu()
  {
    par = vi(1500, -1);
    st = vi(1500, 1);
    for(int i = 0; i < 1500; i++)
      par[i] = i;
  }
  
  int root(int u)
  {
    if(par[u] == u)
      return u;
    else
      return (par[u] = root(par[u]));
}
  
  void join(int u, int v)
  {
    u = root(u);
    v = root(v);
    if(u == v)
      return;
    
    if(st[u] < st[v])
      swap(u, v);
    
    par[v] = u;
    st[u] += st[v];
	}
	}

dsu ds;
int comp;

void initialize(int n_)
{
  n = n_;
  comp = n;
}

int hasEdge(int u, int v)
{
  if(ds.root(u) == ds.root(v))
    return 1;
  else if(comp == 2)
    return 0;
  else
  {
    ds.join(u, v);
    return 1;
  }
}

Compilation message (stderr)

game.cpp:47:5: error: expected initializer before 'ds'
   47 | dsu ds;
      |     ^~
game.cpp: In function 'int hasEdge(int, int)':
game.cpp:58:6: error: 'ds' was not declared in this scope; did you mean 'dsu'?
   58 |   if(ds.root(u) == ds.root(v))
      |      ^~
      |      dsu
game.cpp:67:1: warning: control reaches end of non-void function [-Wreturn-type]
   67 | }
      | ^