标签:style blog io color os ar java for sp
Given an array of strings, return all groups of strings that are anagrams.
Note: All inputs will be in lower-case.
public class Solution { public List<String> anagrams(String[] strs) { List<String> result = new ArrayList<String>(); if (strs == null || strs.length == 0 ) { return result; } HashMap<String,Integer> hmaps = new HashMap<String,Integer>(); for (int i = 0; i < strs.length; i++) { String curSort = sortString(strs[i]); if (hmaps.containsKey(curSort)) { hmaps.put(curSort, hmaps.get(curSort) + 1); } else { hmaps.put(curSort, 1); } } for(int i = 0; i < strs.length; i++) { if (hmaps.containsKey(sortString(strs[i])) && hmaps.get(sortString(strs[i])) > 1) { result.add(strs[i]); } } return result; } String sortString(String str) { char [] charArr = str.toCharArray(); Arrays.sort(charArr); return Arrays.toString(charArr); } }
标签:style blog io color os ar java for sp
原文地址:http://blog.csdn.net/aresgod/article/details/40659193