牛客网测试题

题目

Java解题

public class test05 {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);while(scanner.hasNextLine()){String s = scanner.nextLine();char[] chars = s.toCharArray();int length = chars.length;char[] transArr = new char[length];for (int i = 0; i < chars.length; i++) {char c = Character.isDigit(chars[i]) ? chars[i] : (Character.isLowerCase(chars[i]) ? chars[i] : Character.toLowerCase(chars[i]));transArr[i] = c;}
//            System.out.println(transArr);HashMap<Character, Integer> map1 = new HashMap<>();StringBuffer stringBuffer = new StringBuffer();for (int i = 0; i < transArr.length; i++) {map1.put(transArr[i],map1.getOrDefault(transArr[i],0)+1);if(i == transArr.length-1){stringBuffer.append(transArr[i]+""+map1.get(transArr[i]));break;}if(transArr[i]!=transArr[i+1]){stringBuffer.append(transArr[i]+""+map1.get(transArr[i]));map1 = new HashMap<Character, Integer>();}}System.out.println(stringBuffer);}}
}