157. Check Number Sign

Write a function solve that takes an integer n and returns the string "positive" if n is greater than 0, "negative" if n is less than 0, and "zero" if n is equal to 0.

Example 1:
Input: 5
Output: "positive"

Example 2:
Input: -3
Output: "negative"

Example 3:
Input: 0
Output: "zero"

Run this challenge interactively in Python or JavaScript when the app loads.