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Maximum Swap (medium)
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Problem Statement

Examples

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Problem Statement

Given a non-negative integer num, return the maximum number, which you can create by swapping any two digits of the number only once. If no swaps can improve the number, return the original number.

Examples

  1. Example 1:

    • Input: 2736
    • Expected Output: 7236
    • Justification: Swapping the first and second digits (2 and 7) results in the largest possible number.

  2. Example 2:

    • Input: 9965
    • Expected Output: 9965
    • Justification: The number is already in its maximum form, so no swap is needed.

  3. Example 3:

    • Input: 7281912
    • Expected Output: 9281712
    • Justification: Swapping the first digit (7) with the first 9 found from the left results in the maximum number.

Try it yourself

Try solving this question here:

Python3
Python3
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On this page

Problem Statement

Examples

Try it yourself