Submission #120231

#	Time	Username	Problem	Language	Result	Execution time	Memory
120231		TuGSGeReL	Game (IOI14_game)	C++14	0 / 100	2 ms	384 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];

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;
	sz[prv] += sz[pru];
	rsz[prv] = rsz[pru] + rsz[prv] - rsz1[pru][prv] - rsz1[prv][pru];
}

void rdsu(int u, int v) {
	int pru = fnd(u), prv = fnd(v);
	
	rsz1[pru][prv]++;
	rsz1[prv][pru]++;
	rsz[pru]++;
	rsz[prv]++;
}

bool tusdaa(int u, int v) {
	int pru = fnd(u), prv = fnd(v);
	
	if ( pru == prv )
		return 1;
	
	if ( rsz[prv] + 1 == (nn - sz[prv]) * sz[prv] )
		return 1;
	
	if ( rsz[pru] + 1 == (nn - sz[pru]) * sz[pru] )
		return 1;
	
	return 0;
}

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

int hasEdge(int u, int v) {
	if ( !tusdaa(u, v) ) {
		rdsu(u, v);
		return 0;
	} else {
		dsu(u, v);
		return 1;
	}
}

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