Answer to Question #205942 in Python for siva

Question

how to write the matrix rotation program

Answer 1

def rotate_matr(m:list, n:int, clockwise=True):
	'''a function that rotates the matrix 'm' 'n' times by 90'
	if clockwise=True and by -90' if clockwise=False'''
	if clockwise:
		for i in range(n):
			m = [*zip(*m)]
			for j in range(len(m)):
				m[j] = list(reversed(m[j]))
	else:
		for i in range(n):
			for j in range(len(m)):
				m[j] = list(reversed(m[j]))
			m = [*zip(*m)]
			for j in range(len(m)):
				m[j] = list(m[j])
	return m




#input of matrix dimension
r, c = input('matrix dimension ').split()
r, c = int(r), int(c)
matrix = []
#input matrix
for i in range(r):
	matrix.append(list(map(int, input().split())))
#input of the number of matrix rotations by 90'
n = int(input('turns '))
#direction of rotation input
c = int(input('direction (1 or -1) '))
if c == 1:
	c = True
else:
	c = False


print(*rotate_matr(matrix, n, c), sep='\n')