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Solution: Maximum Swap

Explore how to solve the Maximum Swap problem by applying greedy techniques. Understand how to find and execute the single best swap of two digits to form the largest possible number. This lesson teaches you to implement the solution efficiently with a single pass and identify the optimal indices for swapping.

Statement

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

Constraints:

  • 00 \leq num 105\leq 10^5 ...