CS1120: Lab 2 Exercises (10 pts.) 1. (3 pts.) Below, enter code to complete implementation of a recursive function sum_all_integers(), which takes an input n and adds all integers preceding it, up to n: add_all_integers(n): 2. (3 pts.) Below, enter code to complete implementation of a recursive function find_max() that finds the maximum number in a list of integers: find_max(list): 3. (4 pts.) Below, enter code to complete implementation of a recursive function palindromel) that determines whether an input string is a palindrome or not: palindrome(s)