Solution: Remove K Digits
Discover how to apply a greedy algorithm to remove exactly k digits from a numeric string to form the smallest possible number. This lesson guides you through maintaining a monotonic stack, handling edge cases like leading zeros, and understanding algorithm complexity to efficiently solve this optimization problem.
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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