Problem: 299. 猜数字游戏

思路

👨‍🏫 灵神

复杂度

Code

class Solution {public String getHint(String secret, String guess) {int a  = 0;int[] cntS = new int[10];int[] cntG = new int[10];for(int i = 0; i < secret.length(); i++){if(secret.charAt(i) == guess.charAt(i))a++;else{cntS[secret.charAt(i) - '0']++;cntG[guess.charAt(i) - '0']++;}}int b = 0;for(int i = 0; i < 10; i++)b += Math.min(cntS[i],cntG[i]);return a + "A" + b + "B";}
}