Demonstrates a program to use of a stack to evaluate postfix expressions.
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Demonstrates a program to use of a stack to evaluate postfix expressions.
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- wap to Demonstrates the use of a stack to evaluate postfix expressions.use javaWrite a c++ program, Create a stack of 4 elements using array and perform push and pop operation on it. NOTE: EXPLAIN EACH LINE OR ADD COMMENTS PLEASEA set of instructions may be used to show the return address of a function. Remember that any changes to the stack must not prevent the procedure's return to its caller.
- Using STACK operations "push&pop" right a program for converting infix expression to postfix expression in java// the language is c++, please code with common for better understanding, and after your code finished take a screenshot of the execution. Write a C++ program to simulate a stack using an array. You should create an index (the stack pointer) to point into the stack. Initialize it to 0. The stack should grow to location [1], [2], [3], etc. Write a "push (int)" function to push an int onto the top of the stack. Also, write an "int pop" instruction to pop the data that is stored on the top of the stack. The pop instruction must return the popped data. The push and pop instructions should increment and decrement the stack pointer appropriately. Your source should contain calls to your functions demonstrating that it works. Note, that you should do several pushes and several pops to show that data is correctly stored on the stack. You can do this by showing sample runs. Cut and paste the results of the runs into a separate documentA sequence of instructions may be used to see the function's return address. Any modifications to the stack must be made with the return of the method to its caller in mind.
- write a program in C++ , (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…Javascript: Write out the call stack for this program if x is 3. function factorial(x) { if (x === 0) {return 1;}return x * factorial(x-1); }console.log(factorial(x)); Use "not in function" if not in a function, and put the function name along with the arguments if in a function.Draw the sequence of stack configurations in the evaluation of the following postfix expression: 3 5 5 * + 4 7 + / 6 *