Question

Определить сколько в веденном четырехзначном числе двоек. Через Паскаль, заранее спасибо

Answer 1

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Answer 2

Determining the Number of Twos in a Four-Digit Number

To determine the number of twos in a given four-digit number, you can use the following Pascal code:

var
  number, count, digit: integer;
begin
  count := 0;
  write('Enter a four-digit number: ');
  readln(number);
  while number > 0 do
  begin
    digit := number mod 10;
    if digit = 2 then
      count := count + 1;
    number := number div 10;
  end;
  writeln('The number of twos in the entered four-digit number is: ', count);
end.

This code prompts the user to enter a four-digit number and then iterates through each digit to count the occurrences of the digit 2.

Explanation of the Pascal Code

- Input: The user is prompted to enter a four-digit number. - Counting Twos: The code then iterates through each digit of the number using a while loop. For each digit, it checks if the digit is equal to 2 and increments the count if it is. - Output: Finally, the code displays the count of twos in the entered four-digit number.

Example Run

For example, if the user enters the number 2223, the code will output: ``` The number of twos in the entered four-digit number is: 3 ```

This indicates that the digit 2 appears three times in the number 2223.

Feel free to try out the code with different four-digit numbers to see how it counts the occurrences of the digit 2!