import java.util.Arrays;
import java.util.ArrayList;

public class EfficiencyTest2 {
    private static final int NUMBER_OF_TESTS = 100000;
    private static long startTime = -1;

    public static void startTimer() {
        EfficiencyTest2.startTime = System.nanoTime();
    }

    /** pre: startTimer has been called and EfficiencyTest2.startTime != -1 */
    public static long stopTimer() {
        long start = EfficiencyTest2.startTime;

        /* Reset the startTime */
        EfficiencyTest2.startTime = -1; 

        return System.nanoTime() - start;
    }

    /* pre: array.length >= 1 */
    public static long average(long[] array) {
        long average = array[0];
        for (int i = 1; i < array.length; i++) {
            average = (average * i + array[i]) / (i+1);
        }
        return average;
    }

    public static void prints1(int max) {
        ArrayList<Integer> list = new ArrayList<Integer>();
        for (int i = 1; i < max; i++) {
            list.add(i);
            list.add(i);
        }
    }

    public static void main(String[] args) {
        long[] times1 = new long[EfficiencyTest2.NUMBER_OF_TESTS];
        long[] times2 = new long[EfficiencyTest2.NUMBER_OF_TESTS];

        for (int i = 0; i < EfficiencyTest2.NUMBER_OF_TESTS; i++) {
            /* Test prints1 */
            EfficiencyTest2.startTimer();
            prints1(i);
            System.out.println(EfficiencyTest2.stopTimer());
        }
    }
}