Spiraali

#include <iostream>

int main()
{
	int n, t;
	std::cin >> n;
	std::cin >> t;

	int* spiral = new int[n * n]();

	// Generates the spiral
	{
		int x = 0, y = 0;
		char direction = 0;

		for (int i = 1; i <= n * n; i++)
		{
			spiral[y * n + x] = i;

			if (direction == 0)
			{
				y++;
				if (y == n || spiral[y * n + x] != 0)
				{
					direction = 1;
					y--;
					x++;
				}
			}
			else if (direction == 1)
			{
				x++;
				if (x == n || spiral[y * n + x] != 0)
				{
					direction = 2;
					y--;
					x--;
				}
			}
			else if (direction == 2)
			{
				y--;
				if (y < 0 || spiral[y * n + x] != 0)
				{
					direction = 3;
					y++;
					x--;
				}
			}
			else if (direction == 3)
			{
				x--;
				if (x < 0 || spiral[y * n + x] != 0)
				{
					direction = 0;
					y++;
					x++;
				}
			}
		}
	}
	
	struct Int2
	{
		int x, y;
	};
	Int2* positions = new Int2[t];

	for (int i = 0; i < t; i++)
	{
		int x, y;
		std::cin >> x;
		std::cin >> y;

		positions[i] = { y - 1, x - 1 };
	}

	for (int i = 0; i < t; i++)
	{
		auto& pos = positions[i];

		std::cout << spiral[pos.y * n + pos.x] << "\n";
	}

	delete[] spiral;
	delete[] positions;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc