Leetcode interview question 16.15 Abacus wonderful calculation

Abas magic calculation game （the game of master mind） Here's how to play .

Computers have 4 Slot , Put a ball in each slot , The color could be red （R）、 yellow （Y）、 green （G） Or blue （B）. for example , Computers may have RGGB 4 Kind of （ Slot 1 In red , Slot 2、3 It's green , Slot 4 For blue ）. As the user , You try to guess the color combination . For example , You might guess YRGB. If you guess the color of a slot , It's one time “ Guess right ”; If you only guess the right color, but the slot is wrong , It's one time “ A false guess ”. Be careful ,“ Guess right ” Can't count into “ A false guess ”.

Given a color combination solution And a guess guess, Write a method , Returns the number of hits and false guesses answer, among answer[0] For the number of guesses ,answer[1] The number of false guesses .

Example ：

 Input ： solution="RGBY",guess="GGRR"
 Output ： [1