Java Taskbook Level 10.1

Задание 1

Given two numbers, display the process of finding the LCM, as in school.

Задание 2

Given an arbitrary two-dimensional array:

java{
  {11, 12, 13, 14, 15},
  {21, 22, 23, 24, 25},
  {31, 32, 33, 34, 35},
  {41, 42, 43, 44, 45},
  {51, 52, 53, 54, 55},
}

Get the array of elements of its main diagonal:

java{
  11, 22, 33, 44, 55
}