Answer to Question #201511 in Python for Regina

Question

Stacks and Queues

Please provide the code. Thank you! And also provide the given steps in a table form

A. Create a program that will separate the operators from the operand entered by the user. Use stacks and operators will be limited with +,-, /, and *.

Sample Input: 1+2/3 * 4+5

Answer 1

input_str = input('Input string: ')
operators = '+-/*'
operators_stack = []
operand_stack = []
for c in input_str:
    if c in operators:
        operators_stack.append(c)
    elif c.isdecimal() or c.isalpha():
        operand_stack.append(c)
print('Operands: ', operand_stack)
print('operators: ', operators_stack)