public class SelectionSort {

    public static void main(String[] args) {
        int ii = Integer.parseInt(args[0]);
        mainT(ii);
    }

    public static void mainB(int n) {
        int[] list = new int[n];
        for (int i = 0; i < n; i++) {
            list[i] = Utils.makeRandom(n*10);
        }
        printList(list);
        selectionSort(list);
        System.out.println();
        printList(list);
    }


    public static void mainT(int n) {
        int[] list = new int[n];
        for (int i = 0; i < n; i++) {
            list[i] = Utils.makeRandom(n * 10);
        }
        long st = System.nanoTime();
        selectionSort(list);
        long fn = System.nanoTime();
        System.out.println(fn-st);
    }

    public static void printList(int[] arr) {
        for (int i = 0; i < arr.length; i++) {
            System.out.println(i + "  " + arr[i]);
        }
    }

    public static void selectionSort(int[] arr) {
        for (int i = 0; i < arr.length; i++) {
            int best = 0;
            for (int j = 1; j < (arr.length - i); j++) {
                if (arr[best] < arr[j]) {
                    best = j;
                }
            }
            int temp = arr[best];
            arr[best] = arr[arr.length - i - 1];
            arr[arr.length - i - 1] = temp;
        }
    }
}