// Program to test solutions to problem #5 on the cse143 midterm, spring 2019.
// Fill in your solution to removeMax, then compile and run the program
// note: this program doesn't test the exception that should be thrown

import java.util.*;

class ArrayIntList {
    public void removeMax() {
        // fill in your solution here
    }

    public void removeMax2() {
        if (size == 0) {
            throw new IllegalStateException();
        }
        int max = 0;
        for (int i = 1; i < size; i++) {
            if (elementData[i] > elementData[max]) {
                max = i;
            }
        }
        for (int i = max; i < size - 1; i++) {
            elementData[i] = elementData[i + 1];
        }
        size--;
    }

    private int[] elementData; // list of integers
    private int size;          // current number of elements in the list

    public static final int DEFAULT_CAPACITY = 100;

    // post: constructs an empty list of default capacity
    public ArrayIntList() {
        elementData = new int[DEFAULT_CAPACITY];
        size = 0;
    }

    // post: returns true if list is empty, false otherwise
    public boolean isEmpty() {
        return size == 0;
    }

    // post: creates a comma-separated, bracketed version of the list
    public String toString() {
        if (size == 0) {
            return "[]";
        } else {
            String result = "[" + elementData[0];
            for (int i = 1; i < size; i++) {
                result += ", " + elementData[i];
            }
            result += "]";
            return result;
        }
    }

    // post: appends the given value to the end of the list
    public void add(int value) {
        elementData[size] = value;
        size++;
    }
}

public class Test5 {
    private static int testCount, failCount;

    public static void main(String[] args) {
        int[] data = {3, 1, 5, 7, 3, 19, 42, 8, 23, 7, 42, 2, -8, 9, 105, -3};
        test(data);

        if (failCount == 0) {
            System.out.println("passed all tests");
        } else {
            System.out.println("failed " + failCount + " of " + testCount +
                               " tests");
        }
    }

    public static void test(int[] data) {
        ArrayIntList list1 = new ArrayIntList();
        ArrayIntList list2 = new ArrayIntList();
        for (int n : data) {
            list1.add(n);
            list2.add(n);
        }
        while (!list1.isEmpty()) {
            System.out.println("original list       = " + list1);
            list1.removeMax2();
            boolean fail = false;
            try {
                list2.removeMax();
            } catch (RuntimeException e) {
                int line = e.getStackTrace()[0].getLineNumber();
                System.out.println("    threw " + e  + " at line #" + line);
                fail = true;
            }
            if (!fail) {
                if (!list1.toString().equals(list2.toString())) {
                    System.out.println("expected list after = " + list1);
                    System.out.println("your list after     = " + list2);
                    fail = true;
                } else {
                    System.out.println("lists after match");
                }
            }
            testCount++;
            if (fail) {
                System.out.println("failed");
                failCount++;
            } else {
                System.out.println("passed");
            }
            System.out.println();
        }
    }
}