alexhagiopol / cracking-the-coding-interview Goto Github PK

import numpy as np <----- import numpy
import math

def rotate_matrix(matrix):
# assume clockwise rotation
matrix = np.array(matrix)
N, M = matrix.shape <------ doesn't work without numpy
assert(N == M) # must be NxN matrix
for l in range (int(math.floor(N/2))): <------- need to cast int
for i in range(l, N - 1 - l):
# from top row to right colum
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