Submission #67916

#	Time	Username	Problem	Language	Result	Execution time	Memory
67916		boook	Game (IOI14_game)	C++14	42 / 100	1091 ms	5956 KiB

game

/*input

*/
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
#define REP(i,j,k)     for(int i = j ; i < k ; ++i)
#define RREP(i,j,k)    for(int i = j ; i >=k ; --i)
#define A    first
#define B    second
#define mp   make_pair
#define pb   emplace_back
#define PII pair<int , int>
#define MEM(i,j)   memset(i , j , sizeof i)
#define ALL(i)     i.begin() , i.end()
#define DBGG(i,j)     cout << i << " " << j << endl
#define DB4(i,j,k,l)  cout << i << " " << j << " " << k << " " << l << endl
#define IOS cin.tie(0) , cout.sync_with_stdio(0)
// #define endl "\n"
///------------------------------------------------------------
#define MAX 1500
#define INF 0x3f3f3f3f

struct djs{
	int x[MAX] , siz[MAX];
	map<int , int> cc[MAX];
	void init(){ REP(i , 0 , MAX) x[i] = i , siz[i] = 1; }
	int Find(int a){ return a == x[a] ? a : x[a] = Find(x[a]); }
	void Union(int a , int b){
		a = Find(a) , b = Find(b);
		if(a == b) return ;
		// cc[a].insert(cc[b].begin() , cc[b].end());
		for(auto to : cc[b]) cc[a][to.A] += to.B;
		x[b] = a , siz[a] += siz[b];
	}
	int operator[](int a){ return Find(a); }
} ds;

int n;
void initialize(int _n){
	n = _n;
	ds.init();
}
int hasEdge(int a, int b){
	a = ds[a];
	b = ds[b];
	int cnt = 0;
	ds.cc[a][b] ++;
	ds.cc[b][a] ++;
	for(auto to : ds.cc[a]) if(ds[to.A] == b) cnt += to.B;
	if(cnt == ds.siz[a] * ds.siz[b]) return ds.Union(a , b) , 1;
	return 0;
}
// int main(){
// 	initialize(4);
// 	int a , b;
// 	while(cin >> a >> b){
// 		cout << hasEdge(a , b) << endl;
// 	}
// 	return 0;
// }

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