LeetCode — Sign of the Product of an Array

  • 1 if x is positive.
  • -1 if x is negative.
  • 0 if x is equal to 0.
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
Input: nums = [1,5,0,2,-3]
Output: 0
Explanation: The product of all values in the array is 0, and signFunc(0) = 0
Input: nums = [-1,1,-1,1,-1]
Output: -1
Explanation: The product of all values in the array is -1, and signFunc(-1) = -1
  • 1 <= nums.length <= 1000
  • -100 <= nums[i] <= 100
Sign of the product of an array — Array

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