0-positive_or_negative.c Prints is positive, is zero or is negative when a randomly generated number is any of these cases 1-last_digit.c Prints the last digit of a randomly generated number 2-print_alphabet.c Prints the alphabet in lowercase 3-print_alphabets.c Prints the alphabet in lowercase, and then in uppercase 4-print_alphabet.c Prints the alphabet in lowercase, except q and e letters 5-print_numbers.c Prints all single digit numbers of base 10 starting from 0 6-print_numberz.c Prints all single digit numbers of base 10 starting from 0, without using char variables 7-print_tebahpla.c Prints the lowercase alphabet in reverse 8-print_base16.c Prints all the numbers of base 16 in lowercase 9-print_comb.c Prints all possible combinations of single-digit numbers 10-print_comb2.c Prints the numbers from 00 to 99 100-print_comb3.c Prints all possible different combinations of two digits, separated by 101-print_comb4.c Prints all possible different combinations of three digits, separated by 102-print_comb5.c Prints all possible combinations of two two-digit numbers