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Grokking the Coding Interview Patterns in C#

Solution: Maximum Swap

Explore how to apply a greedy algorithm to solve the maximum swap problem efficiently by swapping at most two digits. This lesson helps you understand identifying optimal digit pairs and implementing the solution with O(n) time and space complexity, enhancing your problem-solving skills for coding interviews.

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Statement

Given an integer num, return the maximum number that can be formed by swapping at most two digits once.

Constraints:

  • 0≤0 \leq num ≤105\leq 10^5 ...