Submission #987633

#	Time	Username	Problem	Language	Result	Execution time	Memory
987633		kim	Game (IOI14_game)	C++17	42 / 100	1062 ms	4728 KiB

game

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

bool adj[1505][1505];
int n;
bitset<1505> vis;

void dfs(int u){
	vis[u]=1;
	for(int i=0;i<n;++i) if(!adj[u][i]&&!vis[i]) dfs(i);
}

void initialize(int n) {
	::n=n;
}
int hasEdge(int u, int v) {
	adj[u][v]=adj[v][u]=1;
	vis.reset(), dfs(0);
	if(n!=vis.count()) adj[u][v]=adj[v][u]=0;
	return !adj[u][v];
}

Compilation message (stderr)

game.cpp: In function 'int hasEdge(int, int)':
game.cpp:20:6: warning: comparison of integer expressions of different signedness: 'int' and 'std::size_t' {aka 'long unsigned int'} [-Wsign-compare]
   20 |  if(n!=vis.count()) adj[u][v]=adj[v][u]=0;
      |     ~^~~~~~~~~~~~~

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