行程长度编码

解题思路:

注意事项:

参考代码:

public class Main {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        String str = scanner.nextLine();

        str = str.toUpperCase();  // 将所有小写字母转换为大写字母

        StringBuilder builder = new StringBuilder();

        int count = 1;

        char prev = str.charAt(0);

        for (int i = 1; i < str.length(); i++) {

            char curr = str.charAt(i);

            if (curr == prev) {  // 相邻字符相同，统计重复次数

                count++;

            } else {  // 相邻字符不同，将前一个字符的统计结果存入 StringBuilder 中

                builder.append("(");

                builder.append(prev);

                builder.append(",");

                builder.append(count);

                builder.append(")");

                prev = curr;  // 更新 prev 和 count

                count = 1;

            }

        }

        // 将最后一个字符的统计结果存入 StringBuilder 中

        builder.append("(");

        builder.append(prev);

        builder.append(",");

        builder.append(count);

        builder.append(")");

        System.out.println(builder.toString());

    }

}