Code•Test•Validate

No installations needed! Write Python directly in your browser and get instant feedback with our smart validation system.

Challenge # 1

Basic Calculator

Objective

Build a simple calculator that performs arithmetic operations based on a given operator.

You are given three variables: a, b, and op.
a and b are numbers, and op is a string that represents an operator: '+', '-', '*', or '/'.
Perform the corresponding arithmetic operation between a and b.
Print the result of the operation.
If the operator is not recognized, print Invalid operator.
If the operation is division and b is 0, print Division by zero error.

Constraints:

Do not use input(). • `a` and `b` will be integers or floats. • `op` will be a string of length 1.

Exemple IO

Input: a = 10
b = 5
op = '+'
Output: 15

Input: a = 7
b = 3
op = '-'
Output: 4

Input: a = 6
b = 2
op = '/'
Output: 3.0

Input: a = 4
b = 0
op = '/'
Output: Division by zero error

Input: a = 4
b = 2
op = '^'
Output: Invalid operator

Output:

Get your code reviewed and validated to understand what you did right and where you can improve.