Submission #709367

#	Time	Username	Problem	Language	Result	Execution time	Memory
709367		600Mihnea	Game (APIO22_game)	C++17	2 / 100	1 ms	208 KiB

game

#include <cstdio>
#include <cstdlib>
#include <vector>
#include "game.h"

#include "game.h"
#include <cmath>
#include <functional>
#include <fstream>
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <set>
#include <map>
#include <list>
#include <time.h>
#include <math.h>
#include <random>
#include <deque>
#include <queue>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <bitset>
#include <cassert>
#include <sstream>
#include <chrono>
#include <cstring>
#include <numeric>

using namespace std;

int n;
int k;
vector<int> mn;
vector<int> mx;
vector<vector<int>> g;
vector<vector<int>> ig;

void init(int nn, int kk)
{
	n = nn;
	k = kk;
	mn.clear();
	mx.clear();
	g.clear();
	ig.clear();

	mn.resize(n + 1);
	mx.resize(n + 1);
	g.resize(n + 1);
	ig.resize(n + 1);

	for (int i = 1; i <= n; i++)
	{
		mx[i] = -1;
		mn[i] = k + 1;
	}
	for (int i = 1; i <= k; i++)
	{
		mn[i] = i;
	}
}

bool F = 0;

void upd(int from, int to)
{
	if (F)
	{
		return;
	}


	{
		int val = (to <= k) ? (to) : (mn[to]);
		if (val < mn[from])
		{
			mn[from] = val;
			for (auto& vec : ig[from])
			{
				upd(vec, from);
			}
		}
	}

	{
		int val = (from <= k) ? (from) : mx[from];
		if (val > mx[to])
		{
			mx[to] = val;
			for (auto& vec : g[to])
			{
				upd(vec, to);
			}
		}

	}

	if (mn[from] <= mx[from])
	{
		F = 1;
	}

	if (mn[to] <= mx[to])
	{
		F = 1;
	}
}

int add_teleporter(int from, int to)
{
	from++;
	to++;
	assert(1 <= from && from <= n);
	assert(1 <= to && to <= n);
	if (from == to)
	{
		if (from <= k)
		{
			return 1;
		}
		else
		{
			return 0;
		}
	}
	if (to < from && from <= k)
	{
		return 1;
	}
	upd(from, to);
	return F;
}

• Subtask 1: 2 / 2
• Subtask 2: 0 / 10
• Subtask 3: 0 / 18
• Subtask 4: 0 / 30
• Subtask 5: 0 / 40