Sign of the Product of an Array
Implement a function signFunc(x) that returns:
1ifxis positive.-1ifxis negative.0ifxis equal to0.
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
1The product of all values in the array is 144, and signFunc(144) = 1.
Example 2
Input
nums = [1,5,0,2,-3]Output
0The product of all values in the array is 0, and signFunc(0) = 0.
Constraints
- 1 <= nums.length <= 1000
- -100 <= nums[i] <= 100
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