Answer: You would need two loops to iterate through both dimensions
Explanation:
matrix = [[1,2,3,4,5],
[6,7,8,9,10],
[11,12,13,14,15]]
for rows in matrix:
for numbers in rows:
print(numbers)
The first loop cycles through all the immediate subjects in it, which are the three lists. The second loop calls the for loop variable and iterates through each individual subject because they are lists. So the first loop iterates through the 1st dimension (the lists) and the seconds loop iterates through the 2nd dimension (the numbers in the lists).
To iterate through (access all the entries of) a two-dimensional arrays you need two for loops.
What is an array?A collection of identically typed items, such as characters, integers, and floating-point numbers, are kept together in an array, a form of data structure.
A key or index that can be used to retrieve or change the value kept in that location identifies each element in the array.
Depending on how many indices or keys are used to identify the elements, arrays can be one-dimensional, two-dimensional, or multi-dimensional.
Two nested for loops are often required to iterate over a two-dimensional array: one to loop through the rows, and the other to loop through the columns.
As a result, two for loops would be required to access every entry in a two-dimensional array.
Thus, the answer is two for loops are required.
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