1. If else if else Write a piece of code that does the following: it takes in an array arr. define a value sum_x if arr has even number of variables, if arr has more than 5 values, take the sum of the last two even indices and store it in sum_x else set sum_x to be the value of the first even index if arr has odd number of variables, if arr has more than 5 values, take the sum of the last two odd indices else set sum_x to be the value of the first odd index The input will have minimally 3 values