Largest Positive Integer That Exists With Its Negative
Given an integer array nums that does not contain any zeros, find the largest positive integer k such that -k also exists in the array.
Return the positive integer k. If there is no such integer, return -1.
Example 1
Input
nums = [-1,2,-3,3]Output
33 is the only valid k we can find in the array.
Example 2
Input
nums = [-1,10,6,7,-7,1]Output
7Both 1 and 7 have their corresponding negative values in the array, and 7 has a larger value.
Constraints
- 1 <= nums.length <= 1000
- -1000 <= nums[i] <= 1000
- nums[i] != 0