输出螺旋矩阵

#include<iostream>
using namespace std;
int main()
{
	int i, j, k, num, a[100][100];
	k = 1; //步数
	i = 2;//横坐标
	j = 2;//纵坐标
	num = 0;
	for (k = 1; k <= 5; k++)
	{
		if (k % 2 == 1)//右上走
		{
			int p = j;
			for (j; j < (p + k); j++)
			{
				a[i][j] = num;
				num++;
			}
			int q = i;
			for (i; i>(q - k); i--)
			{
				a[i][j] = num;
				num++;
			}
		}
		//else//左下
		if (k % 2 == 0)//右上走
		{
			int m = j;
			for (j; j > (m - k); j--)
			{
				a[i][j] = num;
				num++;
			}
			int n = i;
			for (i; i < (n + k); i++)
			{
				a[i][j] = num;
				num++;
			}
		}
	}

	for (i = 0; i < 5; i++)
	{
		for (j = 0; j < 5; j++)
		{
			if (a[i][j] < 10)
			{
				cout << "0" << a[i][j] << " ";
			}
			else
			{
				cout << a[i][j] << " ";
			}
		}
		cout << endl;
	}
	return 0;
}