Build an Arithmetic Formatter Project - Build an Arithmetic Formatter Project

Python
1

Tell us what’s happening:

My output prints out correctly . but when I run the tests the test marks it wrong . what could the problem be ?

Your code so far

def arithmetic_arranger(problems, show_answers=False):
    # Check if there are too many problems (limit is 5)
    if len(problems) > 5:
        return "Error: Too many problems."

    first = ""
    second = ""
    lines = ""
    solt = ""

    for problem in problems:
        parts = problem.split()
        # Split problem into three parts, separating operands from operator
        first_problem, operator, second_problem = parts

        if '+' not in operator and '-' not in operator:
            return "Error: Operator must be '+' or '-'."

        if not first_problem.isdigit() or not second_problem.isdigit():
            return "Error: Numbers must only contain digits."

        if len(first_problem) >= 5 or len(second_problem) >= 5:
            return 'Error: Numbers cannot be more than four digits.'

        length = max(len(first_problem), len(second_problem)) + 2
        top = first_problem.rjust(length)
        bottom = operator + second_problem.rjust(length - 1)
        line = '-' * length

        # Perform the operation based on the operator
        if operator == '+':
            res = str(int(first_problem) + int(second_problem)).rjust(length)
        elif operator == '-':
            res = str(int(first_problem) - int(second_problem)).rjust(length)

        first += top + "    "
        second += bottom + "    "
        lines += line + "    "
        solt += res + "    "

    if show_answers:
        arithmetic_arranger = first + '\n' + second + '\n' + lines + '\n' + solt
    else:
        arithmetic_arranger = first + '\n' + second + '\n' + lines

    return arithmetic_arranger

# Example usage:
print(f'\n{arithmetic_arranger(["3801 - 2", "123 + 49"], True)}')

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Challenge Information:

Build an Arithmetic Formatter Project - Build an Arithmetic Formatter Project

2

Are you sure its identical to the target output down to every last space? You seem to have extra space at the end of every line.

3

I dont seem to find the extra space you pointing out to . is it the spacing between each problem?

4

Right here. You add this to the right of every single problem. But the tests don’t want extra whitespace at the end of the line.

5

it says in the instructions * There should be four spaces between each problem.
so I used the whitespaces to seperate the output of each problem

6

Between, yes.

Good:

problem1 4spaces problem2

Bad:

problem1 4spaces problem2 4spaces

Good:

problem1 4spaces problem2 4spaces problem3

Bad:

problem1 4spaces problem2 4spaces problem3 4spaces
7

ok let me make few changes and see how it comes out.

1 Like
8

You can use the browser dev tools console (f12) for a more detailed error message.

Also, you can use repr() to format your output in the same format that the tests display it:

print(repr(arithmetic_arranger(["3801 - 2", "123 + 49"], True)))

>>>'  3801      123    \n-    2    +  49    \n------    -----    \n  3799      172    '
9

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