I have a string s and a list of strings, arr.
The length of s is equal to the total length of strings in arr.
I need to split s into a list, such that each element in the list has the same length as the corresponding element in arr.
For example:
s = 'Pythonisanprogramminglanguage'
arr = ['lkjhgf', 'zx', 'qw', 'ertyuiopakk', 'foacdhlc']
s = 'Pythonisanprogramminglanguage'
arr = ['lkjhgf', 'zx', 'qw', 'ertyuiopakk', 'foacdhlc']