/* NOTE: The file ArrayUtil.java contains some functions that may be useful
 * in testing your answers. */

/** HW #2, Problem #2. */

class Arrays {
    // a.
    /** A new array consisting of the elements of A followed by the
     *  the elements of B. */
    static int[] catenate(int[] A, int[] B) {
        /* *Replace this body with the solution. */
        return null;
    }

    // b.
    /** The array formed by removing LEN items from A,
     *  beginning with item #START. */
    static int[] remove (int[] A, int start, int len) {
        /* *Replace this body with the solution. */
        return null;
    }

    // c.
    /** The array of arrays formed by breaking up A into 
     *  maximal ascending lists, without reordering.  
     *  For example, if A is {1, 3, 7, 5, 4, 6, 9, 10}, then
     *  returns the three-element array
     *  {{1, 3, 7}, {5}, {4, 6, 9, 10}}. */
    static int[][] naturalRuns (int[] A) {
        /* *Replace this body with the solution. */
        return null;
    }
}