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: Inp…

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: Inp…

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: Inp…

［抄题］: 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…

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: Inp…

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: In…

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: Inp…

原题链接在这里:https://leetcode.com/problems/maximum-swap/description/ 题目: 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:…

题目限定输入是[0, 10^8],因而不用考虑负数或者越界情况,算是减小了难度. public class Solution { /** * @param num: a non-negative intege * @return: the maximum valued number */ public int maximumSwap(int num) { // Write your code here char[] numArrays = String.valueOf(num).toCharAr…

2018-07-28 16:52:20 问题描述: 问题求解: 使用bucket数组来记录每个数最后出现的位置,然后从左向右遍历一遍即可. public int maximumSwap(int num) { char[] digits = String.valueOf(num).toCharArray(); int[] bucket = new int[10]; for (int i = 0; i < digits.length; i++) bucket[digits[i] - '0'] = i…