Submission #1169230

#	Time	Username	Problem	Language	Result	Execution time	Memory
1169230		owieczka	Painting Squares (IOI20_squares)	C++20	45 / 100	28 ms	420 KiB

squares

#include "squares.h"
#include <bits/stdc++.h>

std::vector<int> paint(int n) {
	std::vector<int> labels(n + 1, 0);
	int a = 8;
	int prz = 2 * a + 1; // jeden prz takiej dl
	labels[n] = 40;
	for (int i = 0; i < n; i++)
	{
		int j = i % prz;
		int id = i / prz;
		if (j < a)labels[i] = 1;
		else if (j == a || j == 2*a)labels[i] = 0;
		else 
		{
			if (id & (1 << (j - a-1)))
			{
				labels[i] = 1;
			}
			else
			{
				labels[i] = 0;
			}
		}
	}

	return labels;
}

int find_location(int n, std::vector<int> c) {
	int a = 8;
	int prz = 2*a+1;
	// for (int i = 0; i < c.size(); i++)
	// {
	// 	// std::cerr << c[i];
	// }
	// std::cerr << '\n';
	for (int i = 0; i < c.size(); i++)
	{
		if (c[i] == -1)
		{
			return n - i;
		}
	}
	int con1 = 0;
	int fn = 0;
	for (; fn < c.size(); fn++)
	{
		if (c[fn] == 1)con1++;
		else con1=0;
		if (con1 == a)//i+1 == 0 a dalej mamy liczbe
		{
			break;
		}
	}
	fn += 2;//poczatek numeru przedziału
	// if ()
	int x = 0;
	for (int i = 0; i < a-1; i++)
	{
		if (c[fn + i])
		{
			x += 1 << i;
		}
	}
	//jestem w xtym przedziale
	fn -= a+1;
	return x * prz - fn;
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 20 / 20
• Subtask 4: 0 / 55