Question

Скласти програму, яка обчислює суму та добуток стовпців двовимірного масиву, який складається з n рядків та m стовпчиків.

Answer 1

Ответ:

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Answer 2

Program to Calculate the Sum and Product of Columns in a 2D Array

To write a program that calculates the sum and product of columns in a 2D array, you can follow these steps:

1. Define a function that takes the 2D array, the number of rows (n), and the number of columns (m) as input parameters. 2. Initialize variables to store the sum and product of each column. 3. Use nested loops to iterate over the columns and rows of the array. 4. For each column, iterate over the rows and update the sum and product variables accordingly. 5. After iterating through all the columns and rows, return the sum and product values. 6. In the main program, create a 2D array with the desired number of rows and columns. 7. Call the function with the array, number of rows, and number of columns as arguments. 8. Print the sum and product values returned by the function.

Here's an example implementation in Python:

def calculate_sum_and_product(array, n, m):
    column_sum = [0] * m
    column_product = [1] * m

for j in range(m):
        for i in range(n):
            column_sum[j] += array[i][j]
            column_product[j] *= array[i][j]

return column_sum, column_product

# Example usage
array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
n = 3  # number of rows
m = 3  # number of columns

sums, products = calculate_sum_and_product(array, n, m)

print("Sum of columns:", sums)
print("Product of columns:", products)

This program defines a function called `calculate_sum_and_product` that takes the 2D array, number of rows, and number of columns as input. It initializes two lists, `column_sum` and `column_product`, to store the sum and product of each column, respectively. The nested loops iterate over the columns and rows of the array, updating the sum and product variables accordingly. Finally, the function returns the `column_sum` and `column_product` lists.

In the example usage, a 2D array `array` is created with 3 rows and 3 columns. The `calculate_sum_and_product` function is called with the array and the number of rows and columns. The resulting sums and products are then printed.

Please note that the example provided assumes that the input array is a valid 2D array with consistent dimensions. You may need to add additional error handling or input validation code depending on your specific requirements.

I hope this helps! Let me know if you have any further questions.