Solution: Remove K Digits
Explore how to implement a greedy algorithm to remove exactly k digits from a number represented as a string to produce the smallest possible number. This lesson teaches maintaining a monotonic increasing stack, efficient deletion strategies, and handling leading zeros to optimize the solution.
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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