maximum_swap

README

< Previous 　　　　　　　　　　　　　　　　 Next >

670. Maximum Swap (Medium)

Given a non-negative integer, you could swap two digits at most once to get the maximum valued number. Return the maximum valued number you could get.

Example 1:

Input: 2736
Output: 7236
Explanation: Swap the number 2 and the number 7.

Example 2:

Input: 9973
Output: 9973
Explanation: No swap.

Note:

1. The given number is in the range [0, 10⁸]

Related Topics

[Array] [Math]

Similar Questions

1. Create Maximum Number (Hard)