Solution: Remove K Digits
Explore how to apply a greedy strategy using a monotonic stack to remove exactly k digits from a numeric string. This lesson helps you implement and understand an efficient approach to produce the smallest possible number after deletions, focusing on optimal time and space complexity.
We'll cover the following...
We'll cover the following...
Statement
Given a string, num, that represents a non-negative integer and an integer k, remove exactly k digits from num so that the remaining digits form the smallest possible number.
Constraints:
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