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Grokking the Coding Interview Patterns in C#

Solution: Maximum Swap

Explore how to solve the Maximum Swap problem by applying a greedy algorithm to swap two digits at most once for the largest number. Learn to track and swap digits efficiently and understand the time and space complexity involved.

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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 ...