Next Greater Element II
Given a circular integer array nums (i.e., the next element of nums[nums.length - 1] is nums[0]), return the next greater number for every element in nums.
The next greater number of a number x is the first greater number to its traversing-order next in the array, which means you could search circularly to find its next greater number. If it does not exist, return -1 for this number.
Example 1
Input
nums = [1,2,1]Output
[2,-1,2]The first 1's next greater number is 2, 2 has no next greater number, and the second 1's next greater number is found circularly as 2.
Example 2
Input
nums = [1,2,3,4,3]Output
[2,3,4,-1,4]Each element's next greater number in circular order is 2, 3, 4, -1, and 4 respectively.
Constraints
- 1 <= nums.length <= 10^4
- -10^9 <= nums[i] <= 10^9