Print_Elements_Of_A_Matrix_in_Single_Loop.py

# print all elements of a matrix with a Single loop

arr = [[0, 1, 2],
     [3, 4, 5],
     [6, 7, 8]
]

# Method 1
row = len(arr)
col = len(arr[0])
i = 0
for i in range(row * col): # i < number of rows * number of columns
    r = i // col
    c = i % col
    print(arr[r][c], end = ", ")

###

print()

###

# Method 2
i, j = 0, 0
while i < len(arr):
    print(arr[i][j], end=", ")
    j += 1
    if j == len(arr[0]):
        j = 0
        i += 1