import math import random import string import collections import datetime import re import time import copy  def drawPascalsTriangle(n) : your code here... # end def def alphaFrequency(userString) : your code here... # end def def encryptStr(userString, n) : your code here... # end def  def main( ) : myStr = """ You're an interesting species, an interesting mix. You're capable of such beautiful dreams and such horrible nightmares. You feel so lost, so cut off, so alone, only you're not. See, in all our searching, the only thing we've found that makes the emptiness bearable is each other. Contact --1997--""" for i in range(1, 20, 4) : drawPascalsTriangle(i) alphaFrequency(myStr) for i in list([2, 10, 25, 26, 1000, 13]) : encryptStr(myStr, i) # end main( ) if __name__ == "__main__" : main( ) 

Question #1 Using Python's string capabilities, loops, and built-in functions ONLY, write the code for a Python user-defined function that displays 'n' rows of a Pascal's Triangle! NOTE: You may NOT use lists, tuples, or any other Python data structures. Only solutions using strings will be accepted. The function prototype MUST be: def drawPascalsTriangle(n) Each row of a Pascal's Triangle begins with the number 1 and each row contains exactly m numbers (where m is the row number). So that, when m is 1, there is 1 number, when m is 5, there are 5 numbers, etc. After the first number in each row, each subsequent number is derived from the sum of the 2 numbers immediately above it and to the left. After the first number in each row, when determining the value of each subsequent number, if 2 numbers are not available when computing the sum, assume the missing number is 0 and stop processing numbers for that row. So, for example, a Pascal's Triangle with 4 rows would be: 1 1 1 1 2 1 1 3 3 1 So, for example, a Pascal's Triangle with 8 rows would be: 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1 1 6 15 20 15 6 1 1 7 21 35 35 21 7 1 For more information about Pascal's Triangle, visit: https://medium.com/i-math/top-10-secrets-of-pascals-triangle-6012ba9c5e23