Question

Составьте программу которая заполняет массив A состоящая из 20 случайных целых чисел в диапазоне от 1 до 30 и выводит на экран элементы значения которых являются чётными и кратными трём

Answer 1

Program rand;
var i:integer;
A:array[1..20] of integer;
begin
randomize;
for i:=1 to 20 do
begin
A[i]:=random(30,1);
if (A[i] MOD 3=0) and (A[i] MOD 2=0) then
write(A[i],' ');
end;
end.

Answer 2

Program to Fill an Array with Random Integers and Print Even and Multiples of Three

Here is a program written in JavaScript that fills an array with 20 random integers in the range from 1 to 30 and then prints the elements whose values are both even and multiples of three:

// Function to check if a number is even and a multiple of three
function isEvenAndMultipleOfThree(number) {
  return number % 2 === 0 && number % 3 === 0;
}

// Array to store the random integers
var arrayA = [];

// Fill the array with 20 random integers
for (var i = 0; i < 20; i++) {
  var randomInteger = Math.floor(Math.random() * 30) + 1;
  arrayA.push(randomInteger);
}

// Print the elements that are even and multiples of three
for (var i = 0; i < arrayA.length; i++) {
  if (isEvenAndMultipleOfThree(arrayA[i])) {
    console.log(arrayA[i]);
  }
}

This program uses a `for` loop to fill the `arrayA` with 20 random integers in the range from 1 to 30. It then uses another `for` loop to iterate over the elements of `arrayA` and checks if each element is both even and a multiple of three using the `isEvenAndMultipleOfThree` function. If an element satisfies both conditions, it is printed to the console.

Please note that this program is written in JavaScript and can be executed in a JavaScript runtime environment, such as a web browser console or a Node.js environment.

Let me know if you have any further questions!