Hiring process8 levels
  1. 1 IQ Test
  2. 2 Additional Online Test (If Required)
  3. 3 Office Interview with Hiring Manager
  4. 4 Unpaid Test Task (Motivation Check)
  5. 5 Paid Test Task and Follow-Up Interview
  6. 6 Iterative Paid Test Tasks
  7. 7 Office Verification
  8. 8 Final Interview with the Founder

Problems > Bulls and Cows

Bulls and Cows

Difficulty: 1200 2000 ms 128 MB

implementation

Score a Bulls-and-Cows guess: a bull is a correct digit in the correct position; a cow is a correct digit in the wrong position (each digit instance counts once). Print xAyB for x bulls, y cows.

Input: two lines of equal length: the secret, then the guess (digits).

Output: the score in the form xAyB.

Constraints:

  • 1 ≤ length ≤ 12

Sample Tests

Input 1
1807
7810
Output 1
1A3B
Input 2
1123
0111
Output 2
1A1B

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