Hi I need help please I need to make a function that converts an infix expression to a post fix expression such as converting a + b * (c-d) To a b c d - * +
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- If the elements “A”, “B”, “C” and “D” are placed in a stack and are removed one at a time, in what order will they be removed?Design and implement an application that reads a sentence fromthe user and prints the sentence with the characters of eachword backwards. Use a stack to reverse the characters of eachword.In the following code, assume myStack is a stack that holds integers. What would be the contents of the stack after the following operations, indicating what element is currently at the top and the bottom of the stack. myStack.push(1);myStack.push(2);myStack.push(3);myStack.pop();myStack.push(4);myStack.push(5);myStack.pop(); Group of answer choices 4 <- Top21 <- Bottom 5 <- Top31 <- Bottom 4 <- Top32 <- Bottom 5 <- Top21 <- Bottom
- * Evaluates the specified postfix expression. If an operand is * encountered, it is pushed onto the stack. If an operator is * encountered, two operands are popped, the operation is * evaluated, and the result is pushed onto the stack. * @param expr string representation of a postfix expression * @return value of the given expressionCreate a stack S of ten elements. Take a number x from the user anddelete the elements smaller than or equal to X from the stack.Solve the code much needed. Given a stack, a function is_consecutive takes a stack as a parameter and thatreturns whether or not the stack contains a sequence of consecutive integersstarting from the bottom of the stack (returning true if it does, returningfalse if it does not). For example:bottom [3, 4, 5, 6, 7] topThen the call of is_consecutive(s) should return true.bottom [3, 4, 6, 7] topThen the call of is_consecutive(s) should return false.bottom [3, 2, 1] topThe function should return false due to reverse order. Note: There are 2 solutions:first_is_consecutive: it uses a single stack as auxiliary storagesecond_is_consecutive: it uses a single queue as auxiliary storage"""import collections def first_is_consecutive(stack): storage_stack = [] for i in range(len(stack)): first_value = stack.pop() if len(stack) == 0: # Case odd number of values in stack return True second_value = stack.pop() if first_value - second_value != 1: # Not…
- Sort the stack values either ascending or descending without using stack builtin classes for eg Stack before sorting : 5 | -2 | 9 | -7 | 3 where 3 is the top elementStack after sorting : -7 | -2 | 3 | 5 | 9 where 9 is the top elementPlease with explanation \\\\\\\\\\\\\\\\\\\ JAVA\\\\\\\\\\\\\\\\\\\\\\\\\\ //21.3 * 3.1 / ( 14 + (6+2.1)^3) } //TODO public void convertToPostFix() { //create a stack of operators. //create Vector postFix //Go through inFix from 0 to size-1 //if current element is operand add it to postFix //if operator then as long as top of stack is operator of higher or equal //precedence pop it from stack and add it to postFix //push operator to stack //if open parenthesis push it to stack //if close parenthesis as long as top of stack is not open parenthesis, pop from //stack and add it to postFix. //pop the open parenthesis from stack (don't add it to postfix) //empty stack into postFix. } //TODO public double evaluate() { double result; return…Question#3.Write a Python program to reverse a stack using recursion. Problem Solution Hints: 1. Create a class Stack with instance variable items initialized to an empty list. 2. Define methods push, pop, is_empty and display inside the class Stack. 3. The method push appends data to items. 4. The method pop pops the first element in items. 5. The method is_empty returns True only if items is empty. 6. The method display prints the elements of the stack from top to bottom. 7. Define function insert_at_bottom which takes a stack and a data item as arguments. 8. The function insert_at_bottom adds the data item to the bottom of the stack using recursion. 9. Define function reverse_stack which takes a stack as argument. 10. The function reverse_stack reverses the stack using recursion. 11. Create an instance of Stack, push data to it and reverse the stack.
- . Balanced ParenthesesA string of characters has balanced parentheses if each right parenthesis occurringin the string is matched with a preceding left parenthesis, in the same way that eachright brace in a C++ program is matched with a preceding left brace. Write a programthat uses a stack to determine whether a string entered at the keyboard has balancedparentheses.Design and implement an application that reads a sentence fromthe user and prints the sentence with the characters of each wordbackwards. Use a stack to reverse the characters of each word.8. Pop the infix expression off the stack and print it.Sort the stack values either ascending or descending without using stack builtin classes for eg Stack before sorting : 5 | -2 | 9 | -7 | 3 where 3 is the top elementStack after sorting : -7 | -2 | 3 | 5 | 9 where 9 is the top element by using c/c++ labguage