Solution: Remove K Digits
Explore how to apply a greedy algorithm to remove exactly k digits from a non-negative integer string to achieve the smallest possible number. Understand the use of a monotonic increasing stack to efficiently delete digits while maintaining minimal numeric value. This lesson equips you with a strategy that operates in linear time and handles leading zeros appropriately.
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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