Submission #23694

#	Time	Username	Problem	Language	Result	Execution time	Memory
23694		Hiasat	Game (IOI14_game)	C++14	42 / 100	1000 ms	14768 KiB

game

#include "game.h"
#include <iostream>
#include <cstdio>
#include <set>
#include <vector>
#include <assert.h>
#include <memory.h>

using namespace std;

typedef pair<int,int> pii;

int dsu[2010],p[2010],N,cnt,number;

bool E[2010][2010];

int find(int u,int *dsu){
	return dsu[u] == u ? u : dsu[u] = find(dsu[u],dsu);
}
void initialize(int n) {
	N = n;
	number = n;
	for (int i = 0; i < n; ++i){
		dsu[i] = i;
	}
}


int hasEdge(int u, int v) {
	E[u][v] = E[v][u] = 1;
	cnt++;
	int a = find(u,dsu);
	int b = find(v,dsu);
	if(a == b){
		return 0;
	}
	int res = 0,cmp = 0;
	for(int i = 0 ; i < N ; i++){
		p[i] = dsu[i];
	}
	for(int i = 0 ; i < N ; i++)
		for(int j = i + 1 ; j < N ; j++){
			if(!E[i][j]){
				int a = find(i,p);
				int b = find(j,p);
				p[a] = b;
			}
		}
	int cnt = 0;
	for(int i = 0 ; i < N ; i++){
		if(find(i,p) == i)
			cnt++;
	}
	if(cnt != 1){
		dsu[a] = b;
		return 1;
	}
	return 0;
}

Compilation message (stderr)

game.cpp: In function 'int hasEdge(int, int)':
game.cpp:37:6: warning: unused variable 'res' [-Wunused-variable]
  int res = 0,cmp = 0;
      ^
game.cpp:37:14: warning: unused variable 'cmp' [-Wunused-variable]
  int res = 0,cmp = 0;
              ^

• Subtask 1: 15 / 15
• Subtask 2: 27 / 27
• Subtask 3: 0 / 58