Problem
1. Write a program that accepts three positive integers from the keyboard with suitable validation. It should indicate
(i) whether the integers can form the sides of a right-angled triangle (Pythagorean theorem: a2 + b2 = c2 ),
(ii) the variable representing the hypotenuse.
2. Write a program that uses a function named length to compute the length of a string that is input from the keyboard.