1822. Sign of the Product of an Array

https://leetcode.com/problems/sign-of-the-product-of-an-array

Description

There is a function signFunc(x) that returns:

• 1 if x is positive.

• -1 if x is negative.

• 0 if x is equal to 0.

You are given an integer array nums. Let product be the product of all values in the array nums.

Return signFunc(product).

Example 1:

**Input:** nums = [-1,-2,-3,-4,3,2,1]
**Output:** 1
**Explanation:** The product of all values in the array is 144, and signFunc(144) = 1

Example 2:

**Input:** nums = [1,5,0,2,-3]
**Output:** 0
**Explanation:** The product of all values in the array is 0, and signFunc(0) = 0

Example 3:

**Input:** nums = [-1,1,-1,1,-1]
**Output:** -1
**Explanation:** The product of all values in the array is -1, and signFunc(-1) = -1

Constraints:

• 1 <= nums.length <= 1000

• -100 <= nums[i] <= 100

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