Sample example if the input is \( \{a, b, c\} \) How many elements are there in the set? 3 Please enter the elements in the set: a, b, c The following is the power set of \( \{a, b, c\}:\{\},\{a\},\{b\},\{c\},\{a, b\},\{a, c\},\{b, c\},\{a, b, c\} \) 2. Write a program to print the half pyramid below, using alphabets: