package pramp;

/**

* Traverse a square matrix in a spiral fashion.

*

* @author shivam.maharshi

*/

public class Interview11 {

public static void main(String[] args) {

String pramp = "Practice Makes Perfect";

System.out.println(pramp);

}

public static void print(int[][] a) {

if (a == null || a.length == 0 || a[0].length == 0)

return;

int x = 0, y = 0, r = a.length, c = a[0].length; // r = 4, c = 5

while (r > 0 && c > 0) {

for (int j = x; j < x + c - 1; j++) { // 0 + 5 - 1 < 4

System.out.print(a[y][x] + " "); // 1, 2, 3, 4 -> x = 3

x++; // 4

}

for (int i = y; i < y + r - 1; i++) { // i < 0 + 4 - 1 < 3

System.out.print(a[y][x] + " "); // 5, 10, 15

y++;

} // y = 3

for (int j = x; j > x - c + 1; j--) { // j > 4 - 5 + 1 > 0, j = 4

System.out.print(a[y][x] + " "); // 20, 19, 18, 17

x--;

} // x = 0

r--;

// 3

for (int i = y; i > y - r + 1; i--) { // i = 3, i > 3 - 3 + 1 > 1

System.out.print(a[y][x] + " "); // 16, 11

y--;

} //

r--; // 2

c--; // 4

}

}

}