Enable Javascript in your browser and then refresh this page, for a much enhanced experience.
Zigzag Array solution in Uncategorized category for Zigzag Array by Elena_Korljukova
from typing import List
def create_zigzag(rows: int, cols: int, start: int = 1) -> List[List[int]]:
arr = []
x = start
for i in range(rows):
arr.append(list(range(x, x + cols)) if i%2 == 0 else list(range(x + cols - 1, x - 1, -1)))
x += cols
return arr
if __name__ == '__main__':
print("Example:")
print(create_zigzag(3, 3, 5))
# These "asserts" are used for self-checking and not for an auto-testing
assert create_zigzag(3, 5) == [
[1,2,3,4,5],
[10,9,8,7,6],
[11,12,13,14,15]
]
assert create_zigzag(5, 1) == [
[1],
[2],
[3],
[4],
[5]
]
assert create_zigzag(3, 3, 5) == [
[5, 6, 7],
[10, 9, 8],
[11, 12, 13]
]
# Edge cases
assert create_zigzag(0, 3) == []
assert create_zigzag(3, 0) == [[], [], []]
assert create_zigzag(0, 0) == []
print("Coding complete? Click 'Check' to earn cool rewards!")
June 25, 2020
