Add test cases and their initial reference answer

            return;

        Slice slice = slice(source ,sc);

        boolean equal = slicesMatch(slice, target);

        assert equal: "The slice for " + source.toString() + " has change, please fix the error or update the reference slice.";

        assert equal: "The slice for " + source.toString() + " has changed, please fix the error or update the reference slice.";

    }

    @Test

import java.util.Scanner;

public class Classic {

    public static void main(String[] args) {

        int sum = 0;

        int chars = 1;

        String subtext = "";

        int i = 0;

        while (i < text.size()) {

        while (i < text.length()) {

            char c = text.charAt(i);

            if (c == '\n') {

                lines += 1;

13

import java.util.Scanner;

public class Classic {

    public static void main(String[] args) {

        int product = 1;

        for (int i = 1; i < N; i++) {

            product *= i;

        }

        System.out.println(product);

    }

}

        while (X) {

            if (Y) {

                if (Z) {

                    A();

                    System.out.println("A");

                    break;

                }

                B();

                System.out.println("B");

                break;

            }

            C();

            System.out.println("C");

        }

        D();

        System.out.println("D");

    }

}