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class ShoppingList:
  cart = {}
  
  def __init__(self):
    pass
  def add_item(self,name,price):
    self.cart[name] = price
  def remove_item(self,name):
    if name in self.cart:

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class Incrementor:
  array = []
  value = 0
  arrayVals = []
  def __init__(self,array):
    self.array = array
  def add_value(self,value):
    self.value = value
  def add_values(self,valuesArr):
    self.arrayVals = valuesArr

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class FoodCalculator:
  current_price = 0
  def __init__(self):
    pass
  def add_item(self,value):
    self.current_price = value #assign to instance variable
  def get_tax(self,tax_rate):
    return self.current_price*(tax_rate*0.01)
  def get_tip(self,taxP,tipP):
    after_tax = self.current_price+(0.01*taxP*self.current_price)

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class Library:
  d1 = {}
  def __init__(self):
    pass
  def add_book(self,book):
    self.d1[book] = True
    
  def check_out_book(self,book):
    if book in self.d1:
      del(self.d1[book])

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class QueueUsingStacks:
    def __init__(self):
        self.stack1 = []
        self.stack2 = []
        
    def enqueue(self,value):
        self.stack1.append(value)
    
    #if empty, pop from stack1 and put each value in stack2. 
    def dequeue(self):

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package lab5;
import java.util.Scanner;

public class DataCenterOrders {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int numOperations = in.nextInt();
		// create object of BinarySearchTree class
		BinarySearchTree tree1 = new BinarySearchTree();

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package lab5;
import java.util.ArrayList;

public class BinarySearchTree {
		public class Node {
		public int data;
		public Node left;
		public Node right;
		/*
		 * Constructor if in which a value is passed, a Node

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def SortByFrequency(list1):
    d1 = {}
    list2 = []
    for items in list1:
        d1[items] = list1.count(items)
    for thekeys in d1:
        for i in range(0,d1[thekeys]):
            list2.append(thekeys)
    return list2

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'''The code is meant to skip adding the character "a" and any other character that comes after "a". For this, I check if string's [i th] index = a, and add 1 to index, so that new index will be able to skip the character coming after "a". But this does not seem to be happening. Why is it so ?'''

str1 = "abcde"
str2 = ""
for i in range(len(str1)):
  if str1[i] == "a":
    i +=1
    continue
  else:
    str2 += str1[i]

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'''The code is meant to skip adding the character "a" and any other character that comes after "a". For this, I check if string's [i th] index = a, and add 1 to index, so that new index will be able to skip the character coming after "a". But this does not seem to be happening. Why is it so ?'''

str1 = "abcde"
str2 = ""
for i in range(len(str1)):
  if str1[i] == "a":
    i +=1
    continue
  else:
    str2 += str1[i]