# LeetCode — Sign of the Product of an Array

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`

Solution: