Spiraali

#include <iostream>
#include <vector>
#include <set>
#include <map>

using namespace std;

void display(vector<vector<int>>& v)
{
	for (vector<int> vec : v) {
		for (int n : vec)
		{
			printf("%.2i ", n);
		}
		printf("\n");
	}
}

void makeSpiral(vector<vector<int>>& spiral, int n) {
	int i = 1;
	for (int l = 0; l < n / 2; l++)
	{
		//tl -> bl
		for (int j = l; j < n - l; j++)
		{
			spiral[j][l] = i++;
		}
		//bl -> br
		for (int j = l + 1; j < n - l - 1; j++)
		{
			spiral[n - l - 1][j] = i++;
		}
		//br -> tr
		for (int j = n - l - 1; j > l; j--)
		{
			spiral[j][n - l - 1] = i++;
		}
		//tr - tl
		for (int j = n - l - 1; j > l; j--)
		{
			spiral[l][j] = i++;
		}
	}
}

int main()
{
	std::ios_base::sync_with_stdio(0);
	std::cin.tie(0);
	int n, t;
	std::cin >> n >> t;

	vector<vector<int>> spiral(n, vector<int>(n));
	makeSpiral(spiral, n);
	for (int i = 0; i < t; i++)
	{
		int y, x;
		std::cin >> y >> x;
		printf("%i\n", spiral[y-1][x-1]);
	}
}

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