笨鸟居士的博客

摘要： https://leetcode.com/problems/first-unique-character-in-a-string/ public class Solution { public int firstUniqChar(String s) { int[] index = new int[26]; for (int i=0; i 0) { ... 阅读全文

摘要： https://leetcode.com/problems/lexicographical-numbers/ public class Solution { public List lexicalOrder(int n) { List ret = new ArrayList(); int cur = 1; ret.add(cur); ... 阅读全文