Submission #120240

#	Time	Username	Problem	Language	Result	Execution time	Memory
120240		TuGSGeReL	Game (IOI14_game)	C++14	100 / 100	674 ms	25256 KiB

game

#include "game.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

using namespace std;
using namespace __gnu_pbds;

#define ll long long
#define mp make_pair
#define pub push_back
#define pob pop_back()
#define ss second
#define ff first
#define mt make_tuple
#define pof pop_front()
#define fbo find_by_order
#define ook order_of_key
#define lb lower_bound
#define ub upper_bound

typedef tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
using pll = pair <ll, ll>;
using pii = pair <int, int>;

int par[1501], sz[1501], rsz[1501], nn, rsz1[1501][1501], can[1501][1501];

int fnd(int x) {
	if ( par[x] != x )
		return par[x] = fnd(par[x]);
	
	return par[x];
}

void dsu(int u, int v) {
	
	int pru = fnd(u), prv = fnd(v);
	
	par[pru] = prv;
	
	for (int i = 0; i < nn; i++)
		rsz1[i][prv] = rsz1[prv][i] = rsz1[prv][i] + rsz1[i][pru];
}

void initialize(int n) {
	nn = n;
	for (int i = 0; i < n; i++)
		par[i]= i, sz[i] = 1;
	
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < n; j++)
		{
			if ( j == i )
				continue;
			
			rsz1[i][j] = 1;
		}
	}
}

int hasEdge(int u, int v) {
	int pru = fnd(u), prv = fnd(v);
	
	if ( rsz1[pru][prv] != 1 ) {
		rsz1[pru][prv]--;
		rsz1[prv][pru]--;
		return 0;
	} else {
		dsu(u, v);
		return 1;
	}
}

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