Question

Нарисуйте блок схему: var N, product: longint; digit: integer; begin readln(N); product := N mod 10; while N >= 10 do begin digit := N mod 10; product := product*digit; N := N div 10; end; writeln(product); end.

Answer 1

Ответ:

скрин

Объяснение:

Answer 2

Here is a detailed explanation of the given code and a block diagram to illustrate the flow:

Code Explanation:

The given code calculates the product of the digits of a given number `N`. Let's break down the code step by step:

1. Variable Declaration: The code declares three variables: - `N` of type `longint` to store the input number. - `product` of type `longint` to store the product of the digits. - `digit` of type `integer` to store the current digit being processed.

2. Input: The code reads the input number `N` using the `readln` function.

3. Product Calculation: The code initializes the `product` variable with the last digit of `N` using the modulus operator (`N mod 10`). This is done to ensure that the `product` variable has an initial value before the loop starts.

4. Loop: The code enters a `while` loop that continues as long as `N` is greater than or equal to 10. This loop iterates through each digit of the number.

5. Digit Extraction: Inside the loop, the code extracts the last digit of `N` using the modulus operator (`N mod 10`) and assigns it to the `digit` variable.

6. Product Update: The code multiplies the `product` variable with the current `digit` and assigns the result back to the `product` variable (`product := product * digit`).

7. Number Update: The code updates the value of `N` by dividing it by 10 (`N := N div 10`). This removes the last digit from `N`, preparing it for the next iteration of the loop.

8. Output: After the loop ends, the code prints the final value of the `product` variable using the `writeln` function.

Block Diagram:

Here is a block diagram illustrating the flow of the given code:

          +-------------------+
          |                   |
          |      Start        |
          |                   |
          +--------+----------+
                   |
                   |
                   v
          +-------------------+
          |                   |
          |    Read Input     |
          |                   |
          +--------+----------+
                   |
                   |
                   v
          +-------------------+
          |                   |
          |  Initialize       |
          |   Variables       |
          +--------+----------+
                   |
                   |
                   v
          +-------------------+
          |                   |
          |   Calculate       |
          |    Product        |
          +--------+----------+
                   |
                   |
                   v
          +-------------------+
          |                   |
          |    Loop           |
          |                   |
          +--------+----------+
                   |
                   |
                   v
          +-------------------+
          |                   |
          |   Extract Digit   |
          |                   |
          +--------+----------+
                   |
                   |
                   v
          +-------------------+
          |                   |
          |   Update Product  |
          |                   |
          +--------+----------+
                   |
                   |
                   v
          +-------------------+
          |                   |
          |   Update Number   |
          |                   |
          +--------+----------+
                   |
                   |
                   v
          +-------------------+
          |                   |
          |   Loop Check      |
          |                   |
          +--------+----------+
                   |
                   |
                   v
          +-------------------+
          |                   |
          |   Print Output    |
          |                   |
          +--------+----------+
                   |
                   |
                   v
          +-------------------+
          |                   |
          |      End          |
          |                   |
          +-------------------+

I hope this explanation and block diagram help you understand the given code. Let me know if you have any further questions!