CSES - Datatähti 2025 alku - Results
Submission details
Task:Niitty
Sender:DLPS
Submission time:2024-10-30 19:11:04 +0200
Language:C++ (C++20)
Status:READY
Result:4
Feedback
groupverdictscore
#1ACCEPTED4
#20
#30
#40
#50
#60
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2, 3, 4, 5, 6details
#2ACCEPTED0.01 s1, 2, 3, 4, 5, 6details
#3ACCEPTED0.00 s1, 2, 3, 4, 5, 6details
#4ACCEPTED0.00 s1, 2, 3, 4, 5, 6details
#5ACCEPTED0.00 s1, 2, 3, 4, 5, 6details
#60.01 s2, 3, 4, 5, 6details
#70.01 s2, 3, 4, 5, 6details
#80.01 s2, 3, 4, 5, 6details
#90.01 s2, 3, 4, 5, 6details
#100.38 s3, 4, 5, 6details
#110.18 s3, 4, 5, 6details
#120.34 s3, 4, 5, 6details
#130.00 s3, 4, 5, 6details
#14--4, 5, 6details
#15--4, 5, 6details
#16--4, 5, 6details
#170.00 s4, 5, 6details
#18--5, 6details
#19--5, 6details
#20--5, 6details
#210.01 s5, 6details
#22--6details
#23--6details
#24--6details
#250.01 s6details

Compiler report

input/code.cpp:2:25: warning: extra tokens at end of #include directive
    2 | #include "unordered_map";
      |                         ^
input/code.cpp: In function 'int main()':
input/code.cpp:188:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  188 |                 for (int x = 0; x < row.size(); x++)
      |                                 ~~^~~~~~~~~~~~

Code

#include "bits/stdc++.h"
#include "unordered_map";

using namespace std;

// Debug
int CALLS = 0;


struct flowerData
{
	flowerData()
	{

	}
	vector<pair<int,int>> positions = vector<pair<int,int>>();
};

// Constants
const unordered_map<char, int> flowerIndecies = { {'A',0},{'B',1},{'C',2},{'D',3},{'E',4},{'F',5},{'G',6},{'H',7},{'I',8},{'J',9},{'K',10},{'L',11},{'M',12},{'N',13},{'O',14},{'P',15},{'Q',16},{'R',17},{'S',18},{'T',19},{'U',20},{'V',21},{'W',22},{'X',23},{'Y',24},{'Z',25} };
const int NODEMINSIZE = 16;

vector<flowerData> differentFlowers(26);

//treeNode* flowerTree = nullptr;

// Niityn koko
int fieldSize = 0;

// Mahdollisuuksien määrä
int fieldCount = 0;

int ContainsAllFlowers(int left, int right, int top, int bottom)
{
	CALLS++;
	for (flowerData& flowerType : differentFlowers)
	{
		// Skip flower types that don't exist.
		if (flowerType.positions.size() <= 0)
		{
			continue;
		}

		bool contains = false;

		for (auto& flower : flowerType.positions)
		{
			if (flower.first < left)
			{
				continue;
			}
			if (flower.first > right)
			{
				continue;
			}
			if (flower.second < top)
			{
				continue;
			}
			if (flower.second > bottom)
			{
				continue;
			}
			contains = true;
			break;
		}
		if (!contains)
		{
			return 0;
		}
	}

	return 1;
}

struct treeNode
{
	pair<int,int> nodeSize = pair<int, int>(0, 0);
	pair<int, int> nodeCorner = pair<int, int>(0, 0);

	//treeNode* children[4] = { nullptr };

	treeNode(pair<int, int> size, pair<int, int> corner)
	{
		nodeSize = size;
		nodeCorner = corner;
	}

	//~treeNode()
	//{
	//	for (auto child : children)
	//	{
	//		delete child;
	//		child = nullptr;
	//	}
	//}
};

bool CheckNodeSplit()
{
	return false;
}

void SplitNode(treeNode node, vector<treeNode>* targetVector)
{
	// Top left corner
	targetVector->push_back(treeNode(pair<int, int>(node.nodeSize.first / 2, node.nodeSize.second / 2), pair<int, int>(node.nodeCorner.first, node.nodeCorner.second)));

	bool unevenX = (node.nodeSize.first % 2) != 0;
	bool unevenY = (node.nodeSize.second % 2) != 0;

	// Top right corner
	targetVector->push_back(treeNode(pair<int, int>(node.nodeSize.first / 2 + unevenX, node.nodeSize.second / 2), pair<int, int>(node.nodeCorner.first + node.nodeSize.first / 2, node.nodeCorner.second)));

	// Bottom left corner
	targetVector->push_back(treeNode(pair<int, int>(node.nodeSize.first / 2 , node.nodeSize.second / 2 + unevenY), pair<int, int>(node.nodeCorner.first, node.nodeCorner.second + node.nodeSize.second / 2)));

	// Bottom right corner
	targetVector->push_back(treeNode(pair<int, int>(node.nodeSize.first / 2 + unevenX, node.nodeSize.second / 2 + unevenY), pair<int, int>(node.nodeCorner.first + node.nodeSize.first / 2, node.nodeCorner.second + node.nodeSize.second / 2)));
}

void ComprehensiveSearch(treeNode nodeToSearch)
{
	for (int x1 = nodeToSearch.nodeCorner.first; x1 < nodeToSearch.nodeCorner.first + nodeToSearch.nodeSize.first; x1++)
	{
		for (int x2 = x1; x2 < nodeToSearch.nodeCorner.first + nodeToSearch.nodeSize.first; x2++)
		{
			for (int y1 = nodeToSearch.nodeCorner.second; y1 < nodeToSearch.nodeCorner.first + nodeToSearch.nodeSize.first; y1++)
			{
				for (int y2 = y1; y2 < nodeToSearch.nodeCorner.first + nodeToSearch.nodeSize.first; y2++)
				{
					fieldCount += ContainsAllFlowers(x1, x2, y1, y2);
				}
			}
		}
	}
}

void CountFields()
{
	vector<treeNode> unchecked;

	if (fieldSize >= NODEMINSIZE)
	{
		// Koko niitty sisältää aina kaikki kukat.
		fieldCount++;
		SplitNode(treeNode(pair<int, int>(fieldSize, fieldSize), pair<int, int>(0, 0)), &unchecked);
	}
	else
	{
		ComprehensiveSearch(treeNode(pair<int, int>(fieldSize, fieldSize), pair<int, int>(0, 0)));
		return;
	}

	while (!unchecked.empty())
	{
		treeNode currentNode = move(unchecked.back());
		unchecked.pop_back();

		if (!(currentNode.nodeSize.first < NODEMINSIZE || currentNode.nodeSize.second < NODEMINSIZE))
		{
			// Onko tässä osassa kaikkia kukkia?
			if (ContainsAllFlowers(currentNode.nodeCorner.first, currentNode.nodeCorner.first + currentNode.nodeSize.first - 1, currentNode.nodeCorner.second, currentNode.nodeCorner.second + currentNode.nodeSize.second - 1))
			{
				SplitNode(move(currentNode), &unchecked);
			}
		}
		else
		{
			// Ei enään jakoa.
			ComprehensiveSearch(move(currentNode));
		}
	}
}

int main()
{
	cin >> fieldSize;

	cout << "";

	for (int y = 0; y < fieldSize; y++)
	{
		string row;
		cin >> row;
		//map.push_back(move(row));

		for (int x = 0; x < row.size(); x++)
		{
			flowerData& currentFlower = differentFlowers.at(flowerIndecies.at(row[x]));

			currentFlower.positions.push_back(pair<int, int>(x, y));
		}
	}

	CountFields();

	cout << fieldCount;
}

Test details

Test 1

Group: 1, 2, 3, 4, 5, 6

Verdict: ACCEPTED

input
10
TNCTNPNTPC
NPPNTNTPTP
NTNTTCNTCT
NPCPNPPNTT
...

correct output
2035

user output
2035

Test 2

Group: 1, 2, 3, 4, 5, 6

Verdict: ACCEPTED

input
10
NFWQLWNWYS
DZOQJVXFPJ
CNHXPXMCQD
QRTBVNLTQC
...

correct output
9

user output
9

Test 3

Group: 1, 2, 3, 4, 5, 6

Verdict: ACCEPTED

input
10
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
...

correct output
3025

user output
3025

Test 4

Group: 1, 2, 3, 4, 5, 6

Verdict: ACCEPTED

input
10
FFFFFFFFFF
FFFFFCFFFF
FFFFFFJFFF
FFFFFFFFFF
...

correct output
12

user output
12

Test 5

Group: 1, 2, 3, 4, 5, 6

Verdict: ACCEPTED

input
1
X

correct output
1

user output
1

Test 6

Group: 2, 3, 4, 5, 6

Verdict:

input
20
BBCBUBOUOBBCUUBBCOUO
BOUCOOCUBCOOOCOBOCUO
UCCUUUOBCOCBCBUBUCOO
BUOBUCUCUOOBCOOUBUOO
...

correct output
38724

user output
12902

Test 7

Group: 2, 3, 4, 5, 6

Verdict:

input
20
CBGLSHGZHYZDWBNDBJUG
SMUXOJQYPXZDTMJUIWOJ
XIDSTNBGHKRKOVUVMINB
MTQGCFRUHQKALXRNCQGS
...

correct output
8334

user output
552

Test 8

Group: 2, 3, 4, 5, 6

Verdict:

input
20
KKKKKKKKKKKKKKKKKKKK
KKKKKKKKKKKKKKKKKKKK
KKKKKKKKKKKKKKKKKKKK
KKKKKKKKKKKKKKKKKKKK
...

correct output
44100

user output
17601

Test 9

Group: 2, 3, 4, 5, 6

Verdict:

input
20
AAAAAAAAXAAAAAAAAAAA
AAAWAAAAAAAAAAAAAOAA
AAAAAAAAAAAAAAAAAPAA
AAAAAAAAKAAAAAAAAAAZ
...

correct output
18

user output
1

Test 10

Group: 3, 4, 5, 6

Verdict:

input
50
GRGREEEGREGXRXXEGXXREXGRRRGRRR...

correct output
1584665

user output
308648

Test 11

Group: 3, 4, 5, 6

Verdict:

input
50
AITIISJUHCCRZNKSDCNQKYSQRINFWJ...

correct output
1077746

user output
83118

Test 12

Group: 3, 4, 5, 6

Verdict:

input
50
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOO...

correct output
1625625

user output
351521

Test 13

Group: 3, 4, 5, 6

Verdict:

input
50
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF...

correct output
1680

user output
1

Test 14

Group: 4, 5, 6

Verdict:

input
100
NNCMDCDDCCNNNDNCMMNCDCDCCDCDNM...

correct output
25325366

user output
(empty)

Test 15

Group: 4, 5, 6

Verdict:

input
100
LIMQQIHASECROEVILNVULGWZJPPKOG...

correct output
22342463

user output
(empty)

Test 16

Group: 4, 5, 6

Verdict:

input
100
TTTTTTTTTTTTTTTTTTTTTTTTTTTTTT...

correct output
25502500

user output
(empty)

Test 17

Group: 4, 5, 6

Verdict:

input
100
QXQQQQQQQQQQQQQQQQQQQQQQQQQQQQ...

correct output
25650

user output
1

Test 18

Group: 5, 6

Verdict:

input
200
NAANANMMKNKKAKMKMAKNKMNKMMNNAA...

correct output
403292767

user output
(empty)

Test 19

Group: 5, 6

Verdict:

input
200
OMYWATTLURKQPTKEFMGGYAOONXWVSC...

correct output
388111321

user output
(empty)

Test 20

Group: 5, 6

Verdict:

input
200
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC...

correct output
404010000

user output
(empty)

Test 21

Group: 5, 6

Verdict:

input
200
LLLLLLLLLLLLLLLLLHLLLLLLLLLLLL...

correct output
14159445

user output
1

Test 22

Group: 6

Verdict:

input
500
VVHWVUHVHUWWWVUUUWVUUHUUWHWUVW...

correct output
15683003812

user output
(empty)

Test 23

Group: 6

Verdict:

input
500
OIMZGEQSBMBDSDXSWRFNKSGFEBBTJE...

correct output
15575906951

user output
(empty)

Test 24

Group: 6

Verdict:

input
500
IIIIIIIIIIIIIIIIIIIIIIIIIIIIII...

correct output
15687562500

user output
(empty)

Test 25

Group: 6

Verdict:

input
500
WWWWWWWWWWWWWWWWWWWWWWWWWWWWWW...

correct output
3058970930

user output
1