Submission #1014166

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014166		AmirAli_H1	Game (IOI14_game)	C++17	100 / 100	253 ms	38484 KiB

game

// In the name of Allah

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

typedef		long long int			ll;
typedef		long double				ld;
typedef		pair<int, int>			pii;
typedef		pair<ll, ll>			pll;
typedef		complex<ld>				cld;

#define		all(x)					(x).begin(),(x).end()
#define		len(x)					((ll) (x).size())
#define		F						first
#define		S						second
#define		pb						push_back
#define		sep						' '
#define		endl					'\n'
#define		Mp						make_pair
#define		kill(x)					cout << x << '\n', exit(0)
#define		set_dec(x)				cout << fixed << setprecision(x);
#define		file_io(x,y)			freopen(x, "r", stdin); freopen(y, "w", stdout);
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int maxn = 1500 + 4;

int n; int M[maxn][maxn];
vector<int> adj[maxn]; bool mark[maxn];
int val[maxn]; vector<int> ls;

void initialize(int Nx) {
	n = Nx;
	mark[0] = 1; ls.pb(0);
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) M[i][j] = -1;
	}
}

int hasEdge(int u, int v) {
	if (!mark[u]) swap(u, v);
	if (M[u][v] != -1) return M[u][v];
	
	adj[u].pb(v); adj[v].pb(u);
	if (!mark[u] && !mark[v]) {
		M[u][v] = M[v][u] = 0;
		return M[u][v];
	}
	else if (mark[u] && mark[v]) {
		val[u]++; val[v]++;
		M[u][v] = M[v][u] = 0;
		return M[u][v];
	}
	
	val[v]++;
	if (val[v] == len(ls)) {
		M[u][v] = M[v][u] = 1;
		mark[v] = 1; ls.pb(v);
		for (int r : adj[v]) val[r]++;
	}
	else {
		M[u][v] = M[v][u] = 0;
	}
	return M[u][v];
}

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