python 2d matrix declare

from array import *

T = [[11, 12, 5, 2], [15, 6,10], [10, 8, 12, 5], [12,15,8,6]]
for r in T:
    for c in r:
        print(c,end = " ")
    print()

3
1

                                    length, breadth = x, y
matrix = [[-1 for j in range(breadth)] for i in range(length)]
# every element is -1

3 (1 Votes)
0
0
9
Lmc 75 points

                                    # 2D array that is 3x4 (3 columns, 4 rows)
# note that it is essentially an array of lists
arr = [
		[11, 12, 5],
        [15, 6, 10],
        [10, 8, 12],
        [12, 15, 8]
        ]

0
0
4
6
Hippasus 95 points

                                    def build_matrix(rows, cols):
    matrix = []

    for r in range(0, rows):
        matrix.append([0 for c in range(0, cols)])

    return matrix

if __name__ == '__main__':
    build_matrix(6, 10)

4 (6 Votes)
0
3.71
7
Azita 90 points

                                    # 2D arrays in python can be used to create rudimentary games

array_2d = [['row0, column0'], ['row0, column1'], ['row0, column2'],
            ['row1, column0'], ['row1, column1'], ['row1, column2'],
            ['row2, column0'], ['row2, column1'], ['row2, column2']]
            

3.71 (7 Votes)
0
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