Dsa
Monotonic Stack
Medium
Next Greater Element II
Given a circular list of integers, you need to find the next greater element for each element in the list. The next greater element for an element x is the first greater element to its right in the list. If there is no greater element, you should return -1 for that element. Remember, since the list is circular, if you reach the end, continue searching from the start of the list.
Input format:
- The first line contains an integer n (1 <= n <= 100000), the number of elements.
- The second line contains n space-separated integers.
Output format:
- Print a single line containing n space-separated integers representing the next greater element for each element.
Example:
Input:
5
1 2 1 3 2
Output:
2 3 3 -1 -1
Key concepts
monotonic_stackcircular_arraysnext_greater
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