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| import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
public class GroupAnagrams {
public List<List<String>> groupAnagrams(String[] strs) {
HashMap<Integer, LinkedList<String>> m = new HashMap<Integer, LinkedList<String>>();
for (String s: strs) {
int key = 0;
char[] cs = s.toCharArray();
for (char c: cs) {
key |= 1 << c - 'a';
}
if (!m.containsKey(key)) {
m.put(key, new LinkedList<>());
}
m.get(key).add(s);
}
List<List<String>> ans = new LinkedList<>();
for (LinkedList l : m.values()) {
ans.add(l);
}
return ans;
}
public static void main(String[] args) {
String s = "fdasf";
char[] c = s.toCharArray();
Arrays.sort(c);
System.out.println(String.valueOf(c));
}
}
|
