java入门：map

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class Main{
public static Map<String, Integer> mymap = new HashMap<String, Integer>();
public static int n;
public static String str;

public static void main(String[] args){
Scanner IN = new Scanner(System.in);
while(IN.hasNext()){
n = IN.nextInt();
mymap.clear();
int cnt=0;
while(n-- > 0){
str = IN.next();
if(!mymap.containsKey(str)){
mymap.put(str, Integer.valueOf(++cnt));
}
System.out.println(mymap.get(str));
}
}
}
}