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  1. Prepare
  2. Data Structures
  3. Arrays
  4. Left Rotation
  5. Discussions

Left Rotation

  • nicholas_mahbou1
     + 0 comments

    Great solution ajaycarnet. I compared yours with my own and yours is much faster.

        var sw = Stopwatch.StartNew();
    int[] array = new int[n];

    for(int i = 0; i < n; i++)
        array[(i + (n - d)) % n] = int.Parse(s[i]);
    sw.Stop();

    for(int i = 0; i < n; i++)
        Console.Write(array[i] + " ");

    Console.WriteLine();
    Console.WriteLine(sw.ElapsedTicks);     // 5 ticks

    sw = Stopwatch.StartNew();
    int[] a1 = Array.ConvertAll(s, Int32.Parse);
    int[] buffer = new int[d];
    Array.Copy(a1, 0, buffer, 0, d);
    Array.Copy(a1, d, a1, 0, a1.Length - d);
    Array.Copy(buffer, 0, a1, a1.Length - d, d);
    sw.Stop();

    foreach(var num in a1)
        Console.Write(num + " ");

    Console.WriteLine();
    Console.WriteLine(sw.ElapsedTicks);     // 700+ ticks