Ruudukko

#include<iostream>
#include<tuple>
using namespace std;


const long long dismo = 1000000007;

long long n = 0;

long long** multimatrix;
long long** savedx;	
long long** savedy;


long long A(long long index_x, long long index_y)
{
	long long squareval = multimatrix[index_x][index_y];
	if(squareval == 1) return 0;
	long long count = 0;

	long long s0 = savedx[index_x][squareval - 1];
	long long s1 = savedy[index_y][squareval - 1];

	if (s0 == -1)
	{
		long long dia = 0;

		for (long long i = 0; i < n; ++i)
		{
			if (multimatrix[i][index_y] >= squareval) continue;
			long long adi = multimatrix[i][index_y] == 1 ? 1 : A(i, index_y) + 1;
			count = (count + adi) % dismo;
			dia += adi;
		}

		savedx[index_x][squareval - 1] = dia;
	}
	else
	{
		count = (count + s0) % dismo;
	}

	if (s1 == -1)
	{
		long long ver = 0;

		for (long long i = 0; i < n; ++i)
		{
			if (multimatrix[index_x][i] >= squareval) continue;
			long long adi = multimatrix[index_x][i] == 1 ? 1 : A(index_x, i) + 1;
			count = (count + adi) % dismo;
			ver += adi;
		}

		savedy[index_y][squareval - 1] = ver;
	}
	else
	{
		count = (count + s1) % dismo;
	}
	
	return count;
}


int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);

	long long countLIBERAL = 0;

	cin >> n;
	long long sqrn = n * n;

	multimatrix = new long long* [n];
	savedx = new long long* [n];
	savedy = new long long* [n];

	for (long long i6 = 0; i6 < n; ++i6)
	{
		multimatrix[i6] = new long long[n];
		savedx[i6] = new long long [sqrn];
		savedy[i6] = new long long [sqrn];

		for (long long i7 = 0; i7 < n; ++i7)
		{
			cin >> multimatrix[i6][i7];
		}
	}

	for (int i = 0; i < n; ++i)
	{
		for (int um = 0; um < sqrn; ++um)
		{
			savedx[i][um] = -1;
			savedy[i][um] = -1;
		}
	}

	for (long long lx = 0; lx < n; ++lx)
		for (long long ny = 0; ny < n; ++ny)
		{
			countLIBERAL += A(lx, ny);
		}


	cout << (countLIBERAL + sqrn) % dismo;




	return 0;
}

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4

Group: 2, 3

Verdict: ACCEPTED

Test 5

Group: 2, 3

Verdict: ACCEPTED

Test 6

Group: 2, 3

Verdict: WRONG ANSWER

Test 7

Group: 3

Verdict: RUNTIME ERROR

Test 8

Group: 3

Verdict: RUNTIME ERROR

Test 9

Group: 3

Verdict: RUNTIME ERROR