How to Solve 2D Array Questions in Python?

Estimated read time 2 min read

Solving 2D array questions in Python involves using nested loops and other programming constructs to manipulate the elements of a 2D array. Here’s an example of how to solve a 2D array question in Python:

Problem: Given a 2D array of integers, write a function to find the sum of all the elements in the array.

Solution:

def sum_2d_array(arr):
    # Initialize the sum variable
    total_sum = 0
    
    # Loop over the rows and columns of the array
    for row in range(len(arr)):
        for col in range(len(arr[row])):
            # Add the current element to the sum
            total_sum += arr[row][col]
    
    return total_sum

# Test the function with a sample 2D array
arr = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
total_sum = sum_2d_array(arr)
print("The sum of all elements in the array is:", total_sum)

In this example, we define a function sum_2d_array that takes in a 2D array arr and returns the sum of all the elements in the array.

We initialize the total_sum variable to 0.

We loop over the rows and columns of the array using nested for loops. For each element of the array, we add its value to the total_sum variable.

Finally, we return the total_sum variable.

We test the function with a sample 2D array arr = [[1, 2, 3], [4, 5, 6], [7, 8, 9]], and print the sum of all the elements in the array.

Note: This is just one example of how to solve a 2D array question in Python. There are many other types of 2D array questions that can be solved using different programming techniques.

You May Also Like

More From Author

+ There are no comments

Add yours

Leave a Reply