题目描述
给定n个字符串,请对n个字符串按照字典序排列。
输入描述:
输入第一行为一个正整数n(1≤n≤1000),下面n行为n个字符串(字符串长度≤100),字符串中只含有大小写字母。
输出描述:
数据输出n行,输出结果为按照字典序排列的字符串。
输入例子:
9
cap
to
cat
card
two
too
up
boat
boot
输出例子:
boat
boot
cap
card
cat
to
too
two
up
方法一:
- import java.util.*;
- public class Main {
-
- public static void main(String[] args) {
-
- Scanner scan=new Scanner(System.in);
- int count=scan.nextInt();
- TreeSet ts=new TreeSet();
- for(int i=0;i<count;i++)
- {
- ts.add(scan.nextLine());
- }
- Iterator it=ts.iterator();
- while(it.hasNext())
- {
- System.out.println(it.next());
- }
- }
- }
方法二:
- import java.util.*;
- public class Main{
- public static void main(String[] args) {
- Scanner in=new Scanner(System.in);
- int n=in.nextInt();
- Vector<String> ve=new Vector<String>();
- for (int i = 0; i < n; i++) {
- ve.add(in.next());
- }
- Collections.sort(ve);
- Iterator it=ve.iterator();
- while(it.hasNext()){
- System.out.println(it.next());
- }
- }
- }
方法三:
- import java.util.*;
-
- public class Main {
-
- public static void main(String[] args) {
- Scanner sc = new Scanner(System.in);
- while(sc.hasNext()){
- int n = Integer.valueOf(sc.nextLine());
- List<String> list = new ArrayList();
- for(int i = 0; i < n; i++){
- list.add(sc.nextLine());
- }
- Collections.sort(list);
- Iterator iter = list.iterator();
- while(iter.hasNext()){
- System.out.println(iter.next());
- }
- }
- sc.close();
- }
- }