ion Design a program which can tansfer an infix expression into a postfix expression
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Q: convert infix to postfix
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Expression Conversion
Design a program which can tansfer an infix expression into a postfix expression and compute its result. Suppose the infix expression only includes’ *’, ‘/’, ‘+’, ‘-‘, ‘(‘, ‘)’ and the numbers are all integers.
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- OCaml Code: I need help with writing the push and pop statements in order to create an interpreter for OCaml. I need help with writing the print statement as well. The println command pops a string off the top of the stack and writes it, followed by a newline, to the output file that is specified as the second argument to the interpreter function. In the case that the top element on the stack is not a string, it should be returned to the stack and an :error: pushed. If the stack is empty, an :error: shall be pushed. Below is the unfinished code. Make sure to use the test cases as well and show the screenshots of the code passing the test cases. Attached is info. for push and pop. interpreter.ml type stackValue = BOOL of bool | INT of int | ERROR | STRING of string | NAME of string | UNIT type command = ADD | SUB | MUL | DIV | PUSH of stackValue | POP of stackValue | REM | NEG | TOSTRING | SWAP | PRINTLN | QUIT let interpreter (input, output) = let ic = open_in input in…(Postfix Evaluation) Write a program that evaluates a valid postfix expression such as 6 2 + 5 * 8 4 / -The program should read a postfix expression consisting of digits and operators into a string. Using modified versions of the stack functions implemented earlier in this chapter, the program should scan the expression and evaluate it. The algorithm is as follows: While you have not reached the end of the string, read the expression from left to right. If the current character is a digit, Push its integer value onto the stack (the integer value of a digit character is its value in the computer’s character set minus the value of '0' in the computer’s character set). Otherwise, if the current character is an operator, Pop the two top elements of the stack into variables x and y. Calculate y operator x. Push the result of the calculation onto the stack. When you reach the end of the string, pop the top value of the stack. This is the result of the postfix expression. [Note: In Step 2…C# Reverse the stack - This procedure will reverse the order of items in the stack. This one may NOT break the rules of the stack. HINTS: Make use of more stacks. Arrays passed as parameters are NOT copies. Remember, this is a procedure, not a function. private int [] stack; private int size; public void ReverseStack(){ }
- Compulsory Task Follow these steps: ● For this task, you are required to refactor the badly written program RPN.java. This program is a Reverse-Polish Notation calculator which uses a stack. A Reverse-Polish Notation calculator is a calculator that will calculate equations where the operator follows the operands. Therefore, instead of inputting an equation as “1 + 2”, a Reverse-Polish Notation calculator would take the following input “ 1 2 +”. A stack is a data structure in which items are added to the top of the stack and removed from the top of the stack. It is therefore known as a last-in, first-out (LIFO) data structure. Stack terminology: ○ Push — is an operation that adds an item to the top of a stack. ○ Pop — is an operation that removes an item from the top of a stack. The pseudocode for this program is: ○ Get an equation (e.g. 2 3 +) from the user as input. ○ Loop through the string value input by the user. ■ When you encounter a number (remember that numbers can include…Points to be noted: **Please use Python 3 and do not use any built-in function **Do not just copy paste from any other sources, come up with an unique solution. **Solve the above problem using a linked list based stack.C# Reverse the stack - This procedure will reverse the order of items in the stack. This one may NOT break the rules of the stack. HINTS: Make use of more stacks. Arrays passed as parameters are NOT copies. Remember, this is a procedure, not a function. public void ReverseStack(){ }
- Add remain code and explanation of whole code. 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 -…. 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.This code will be in C++ and will have 3 files. This lab will test your ability to use a custom stack class and a custom queue class. It will also test your ability to use a standard algorithm from STL. ReOrder ReOrder() takes three arguments as shown in Reorder.cpp. Complete this function using stack and queue. The number 0 is used as a delimiter between sets of numbers. The new array should have all negative numbers on one side and all positive numbers on the other side. The zero should be pushed to the end of the array. See the sample run below. Custom Compare Function The custom compare function is used in conjunction with the standard sort function. The numbers to be sorted are of a standard data type but create this custom compare function anyway. The function should result in a sorted array from the greatest number to the least number. Sample Run A sample run is as follows: array: -3 2 -1 5 1 -4 0 11 12 13 -11 -12 0 -1 -2 6 8 7newArray: -3 -1 -4 1 5 2 -11 -12 13 12 11 -1 -2 7 8…
- True or False For each statement below, indicate whether you think it is True or False. If you like, you can provide a description of your answer for partial credit in case you are incorrect. Given a stack implemented as an array, and the following functions performed: Push(A), Push (B), Push(C), Pop(), Push(D), Push(E), Pop(), Push(F) The array will be [A][B][D][F] and the “top” of the stack will be at index 3 where [F] is The next element that will be removed when Pop is called will be A If we Push(G), [G] will be inserted at index 0 Given a queue implemented as an array with a maximum capacity of 5 elements and O(1) insert and remove, and the following functions are performed: Insert(7), Insert(6), Insert(5), Insert(4), Remove(), Remove(), Insert(3), Insert(2), Insert(1), Remove() The removeIndex value will be index 4 The array will be [2][1][ ][4][3] The insertIndex value will be index 2 Given a priority queue implemented as a standard linked list with only a…struct Faculty { int id; char name[30]; char status[10]; //status permanent or visiting Faculty next; }; Assume we have three stacks S, V and P. S is a stack having mix data of visiting and permanent faculty members, V is empty and for visiting faculty memebrs and P is also empty for permanent faculty members. Using primitive functions of stack write a C++ code which reads entire data from S and write on respective stack V or P.please convert to C language #include <bits/stdc++.h>using namespace std; typedef long long ll; int main(){ ll t; cout << "Enter number of test cases: "; cin >> t; while (t--) { ll n, m; cout << "Enter number of nodes and edges: "; cin >> n >> m; // declare a vector of stacks of size (n+1) // since index start from 0. stack<int> v1[n + 1]; // declare a vector of queue of size (n+1) // since index start from 0. queue<int> v2[n + 1]; cout << "Enter tree 1: "; for (ll i = 0; i < m; i++) { ll x, y; //enter the elements of its. cin >> x >> y; v1[x].push(y); } cout << "Enter tree 2: "; for (ll i = 0; i < m; i++) { ll x, y; cin >> x >> y; //enter elements of tree 2. v2[x].push(y); } bool flag; //…