📅  最后修改于: 2022-03-11 14:45:47.451000             🧑  作者: Mango
# 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]
]