P486.java

/* 
486. "Bulls and Cows"

Time limit per test: 0.25 second(s)
Memory limit: 262144 kilobytes
input: standard
output: standard



You probably know the game "bulls and cows". Just in case, we explain the rules. 
The first player picks a four-digit number with all digits distinct (leading 
zero is allowed) and keeps it secret. The second player tries to guess the secret 
number. For each guess, the first player issues a response in the form "n bulls, 
m cows". A "bull" is a digit that is present in both the secret and the guess 
and occurs in the same position in both. A "cow" is a digit that is present in 
both numbers, but occurs in different positions.

For example, if the first player picked 5071, and the second guessed 6012, the 
response would be "one bull, one cow". Here the "bull" is the digit 0, as it 
is in the second position in both numbers, and the "cow" is the digit 1, as it 
is in the fourth position in the secret, but in the third position in the guess.

Write a program to count the number of cows and bulls for the given the secret 
and guess.

Input
The first line of the input file contains four digits, the number picked by the 
first player. The second line contains the number guessed by the second player 
in the same format.

Output
The first and only line of the output file should contain two integers separated 
by a space, the number of "bulls" and the number of "cows".

Example(s)
sample input
sample output
5071
6012
1 1

sample input
sample output
4321
4321
4 0

sample input
sample output
1980
0879
0 3

sample input
sample output
1234
5678
0 0
 * 
 */
import java.util.*;

public class P486 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String secret = in.next();
        String guess = in.next();
        int bull = 0;
        int cow = 0;
        for(int i = 0; i < 4; i++) {
            for(int j = 0; j < 4; j++) {
                if(secret.charAt(i) == guess.charAt(j)) {
                    if(i == j) {
                        bull++;
                    } else {
                        cow++;
                    }
                }
            }
        }
        System.out.print(bull + " " + cow);
    }
}