Please provide the code solution to these problems :

1) https://www.codestepbystep.com/problem/view/python/collections/list/find_range_2d

Write a function named find_range_2d that accepts a list of lists of integers as a parameter and returns the range of values contained in the list of lists, which is equal to one more than the difference between its largest and smallest element. For example, if the largest element is 17 and the smallest is 6, the range is 12. If the largest and smallest values are the same, the range is 1. If the list is empty your function should return 0.

Constraints: You may not create any other data structures You may not modify the contents of the list.

2) https://www.codestepbystep.com/problem/view/python/collections/list/get_percent_even

Write a function named get_percent_even that accepts a list of integers as a parameter and returns the percentage of the integers in the list that are even numbers. For example, if a list a stores [6, 4, 9, 11, 5], then your function should return 40.0 representing 40% even numbers. If the list contains no even elements or is empty, return 0.0. Do not modify the list passed in.