Submission #399053

#	Time	Username	Problem	Language	Result	Execution time	Memory
399053		Bill_00	Game (IOI14_game)	C++14	0 / 100	1 ms	332 KiB

game

#include "game.h"
#include <bits/stdc++.h>
#define pb push_back
using namespace std;
int a[1505][1505],p[1505],sz[1505];
bool flag[1505][1505];
vector<int>vec[1505];
int find(int node){
	if(node==p[node]) return node;
	else return p[node]=find(p[node]);
}
void initialize(int n) {
	for(int i=1;i<=n;i++){
		p[i]=i;
		sz[i]=1;
	}
}
int hasEdge(int u, int v) {
	u++;
	v++;
    u=find(u);
    v=find(v);
    if(a[u][v]+1==sz[u]*sz[v]){
    	if(sz[u]<sz[v]){
    		swap(u,v);
    	}
    	for(int y=0;y<vec[v].size();y++){
    		a[u][v]+=a[v][vec[v][y]];
    		a[v][u]+=a[vec[v][y]][v];
    		if(flag[u][vec[v][y]]==0){
    			vec[u].pb(vec[v][y]);
    			flag[u][vec[v][y]]=1;
    		}
    		if(flag[vec[v][y]][u]==0){
    			vec[vec[v][y]].pb(u);
    			flag[vec[v][y]][u]=1;
    		}
    	}
    	sz[u]+=sz[v];
    	u=p[v];
    	cout << 1 << '\n';
    }
    else{
    	if(flag[u][v]==0){
    		vec[u].pb(v);
    		flag[u][v]=1;
      	}
      	if(flag[v][u]==0){
      		vec[v].pb(u);
      		flag[v][u]=1;
      	}
    	a[u][v]++;
    	a[v][u]++;
    	cout << 0 << '\n';
    }
    return 0;
}

Compilation message (stderr)

game.cpp: In function 'int hasEdge(int, int)':
game.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |      for(int y=0;y<vec[v].size();y++){
      |                  ~^~~~~~~~~~~~~~

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