Problem 59806. Replace with Lower

minnolina

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Given a list of integers, for each element, replace it with the minimum integer found in the sub-list to its strict right (excluding itself). The last element should be replaced with 'inf'. Return the modified list.
For example, if the input list is [17, 18, 5, 4, 6, 10], the output should be [4, 4, 4, 6, 10, inf].
Explanation:
For the first element, the minimum integer to its right is 4.
Similarly, for the second and third elements, the minimum integer to their right is 4.
For the fourth element, the minimum integer to its right is 6.
For the fifth element, the minimum integer to its right is 10.
Since there are no elements to the right of the last element, it's replaced with 'inf'.