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**HackerEarth Roy and Symmetric Logos problem solution**, Roy likes Symmetric Logos.How to check whether a logo is symmetric?

Align the center of logo with the origin of Cartesian plane. Now if the colored pixels of the logo are symmetric about both X-axis and Y-axis, then the logo is symmetric.

You are given a binary matrix of size N x N which represents the pixels of a logo.

1 indicates that the pixel is colored and 0 indicates no color.

For instance: Take a 5x5 matrix as follows:

01110

01010

10001

01010

01110

## HackerEarth Roy and Symmetric Logos problem solution.

`def check_about_x_axis(n, matrix):`

for i in xrange(n):

j = n-i-1

for p in xrange(n):

if matrix[i][p] != matrix[j][p]:

return 0

return 1

def check_about_y_axis(n, matrix):

for i in xrange(n):

j = n-i-1

for p in xrange(n):

if matrix[p][i] != matrix[p][j]:

return 0

return 1

def roy_and_symmetric_logos():

t = input()

for tt in xrange(t):

n = input()

matrix = []

for i in xrange(n):

s = raw_input()

tmp = list(s)

matrix.append(tmp)

if check_about_y_axis(n,matrix) and check_about_x_axis(n,matrix):

print "YES"

else:

print "NO"

roy_and_symmetric_logos()

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