CSES - Datatähti 2025 alku - Results
Submission details
Task:Kortit II
Sender:DLPS
Submission time:2024-10-29 18:11:25 +0200
Language:C++ (C++20)
Status:READY
Result:3
Feedback
groupverdictscore
#1ACCEPTED3
#20
#30
#40
#50
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3, 4, 5details
#2--2, 3, 4, 5details
#3--3, 4, 5details
#4--4, 5details
#50.38 s5details
#60.38 s5details

Compiler report

input/code.cpp:1:25: warning: extra tokens at end of #include directive
    1 | #include "bits/stdc++.h";
      |                         ^
input/code.cpp: In function 'int EvaluateBranch(int, std::vector<int>, std::vector<int>, int, int, int)':
input/code.cpp:41:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |         for (int j = 0; j < bHand.size(); j++)
      |                         ~~^~~~~~~~~~~~~~
input/code.cpp:50:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         for (int i = 0; i < aHand.size(); i++)
      |                         ~~^~~~~~~~~~~~~~
input/code.cpp:56:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |                 for...

Code

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

using namespace std;

// Yhteisiä yhdelle testille.
int cardCount = 0;
int aTarget = 0;
int bTarget = 0;
int maxZeros = 0;

//Debug
int CALLS = 0;

// Cards kuvaa montako korttia pelaajilla on jäljellä.
int EvaluateBranch(int cards, vector<int> aHand, vector<int> bHand, int aPoints, int bPoints, int zeros)
{
	CALLS++;
	// Ei kortteja jäljellä
	if (!(cards > 0))
	{
		if (aPoints == aTarget && bPoints == bTarget && zeros == maxZeros)
		{
			return 1;
		}
		else
		{
			return 0;
		}
	}
	// Onko joku maksimi ylitetty?
	else if (aPoints > aTarget || bPoints > bTarget || zeros > maxZeros)
	{
		return 0;
	}

	int answer = 0;

	vector<vector<int>> newBHands;
	newBHands.reserve(bHand.size());

	for (int j = 0; j < bHand.size(); j++)
	{
		vector<int> newBHand = bHand;
		swap(newBHand[j], newBHand.back());
		newBHand.pop_back();

		newBHands.push_back(newBHand);
	}

	for (int i = 0; i < aHand.size(); i++)
	{
		vector<int> newAHand = aHand;
		swap(newAHand[i], newAHand.back());
		newAHand.pop_back();

		for (int j = 0; j < bHand.size(); j++)
		{
			int aPoint = 0;
			int bPoint = 0;
			int zero = 0;

			if (aHand[i] != bHand[j])
			{
				if (aHand[i] > bHand[j])
				{
					aPoint++;
				}
				else
				{
					bPoint++;
				}
			}
			else
			{
				zero++;
			}

			answer += EvaluateBranch(cards - 1, newAHand, newBHands[j], aPoints + aPoint, bPoints + bPoint, zeros + zero);
			answer %= 1000000007;
		}
	}
	return answer;
}

void Evaluate(int n, int a, int b)
{
	cardCount = n;
	aTarget = a;
	bTarget = b;
	maxZeros = n - a - b;
	CALLS = 0;

	vector<int> baseHand;

	for (int i = 0; i < n; i++)
	{
		baseHand.push_back(i + 1);
	}

	cout << EvaluateBranch(n, baseHand, baseHand, 0, 0, 0) << "\n";
	//cout << "Made " << CALLS << " evaluation calls\n";
}

int main()
{
	int testCount = 0;
	cin >> testCount;

	for (int i = 0; i < testCount; i++)
	{
		int n, a, b;
		cin >> n >> a >> b;

		Evaluate(n, a, b);
	}

}

Test details

Test 1

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

input
54
4 4 0
3 1 3
3 2 2
4 0 4
...

correct output
0
0
0
0
0
...

user output
0
0
0
0
0
...

Test 2

Group: 2, 3, 4, 5

Verdict:

input
284
6 1 0
5 0 2
7 1 5
7 7 5
...

correct output
0
0
35280
0
36720
...

user output
(empty)

Test 3

Group: 3, 4, 5

Verdict:

input
841
19 3 12
19 19 13
19 7 13
20 11 15
...

correct output
40291066
0
0
0
0
...

user output
(empty)

Test 4

Group: 4, 5

Verdict:

input
1000
15 12 6
7 1 6
44 4 26
6 6 5
...

correct output
0
5040
494558320
0
340694548
...

user output
(empty)

Test 5

Group: 5

Verdict:

input
1000
892 638 599
966 429 655
1353 576 1140
1403 381 910
...

correct output
0
0
0
249098285
0
...

user output
0
0
0

Test 6

Group: 5

Verdict:

input
1000
2000 1107 508
2000 1372 249
2000 588 65
2000 1739 78
...

correct output
750840601
678722180
744501884
159164549
868115056
...

user output
(empty)