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Spirally traversing a matrix
Medium Accuracy: 48.39% Submissions: 44888 Points: 4

Given a matrix of size r*c. Traverse the matrix in spiral form.

Example 1:

Input:
r = 4, c = 4
matrix[][] = {{1, 2, 3, 4},
{5, 6, 7, 8},
{9, 10, 11, 12},
{13, 14, 15,16}}
Output:
1 2 3 4 8 12 16 15 14 13 9 5 6 7 11 10
Explanation:


Example 2:

Input:
r = 3, c = 4
matrix[][] = {{1, 2, 3, 4},
{5, 6, 7, 8},
{9, 10, 11, 12}}
Output:
1 2 3 4 8 12 11 10 9 5 6 7
Explanation:
Applying same technique as shown above,
output for the 2nd testcase will be
1 2 3 4 8 12 11 10 9 5 6 7.


You dont need to read input or print anything. Complete the function spirallyTraverse() that takes matrix, r andas input parameters and returns a list of integers denoting the spiral traversal of matrix.

Expected Time Complexity: O(r*c)
Expected Auxiliary Space: O(r*c), for returning the answer only.

Constraints:
1 <= r, c <= 100
0 <= matrixi <= 100