Solution: Remove K Digits
Explore how to implement a greedy algorithm to remove exactly k digits from a numeric string to achieve the smallest possible number. Understand using a monotonic increasing stack to efficiently decide which digits to remove, while managing edge cases like leading zeros. This lesson helps improve your skills in optimizing number manipulation problems with linear 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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