vchan14

sentence = "i like apple"
# Create a dictionary counting character frequency of ``sentence``

# With using default dicionary 
from collections import defaultdict
frequencies = defaultdict(int) 
for char in sentence:
   frequencies[char] += 1

# Without using defualt dictionary 

vchan14

def addTwo(val):
  val += 2 

x = 1
addTwo(x) 

print(x)

# Output 1 
# Expected 3 

vchan14

import sys
# Author: Visalbotr Chan 
# Date: Aug 14 2020

# sys.stdin = open("test1.txt", "r")

def main():
    def recursion(stack_ith, plate_needed):
        # base case 
        if stack_ith >= num_stacks or plate_needed <= 0: