Task: Box the compass
C: #include <stdio.h>

int main()
{
        int i, j;
        double degrees[] = { 0.0, 16.87, 16.88, 33.75, 50.62, 50.63, 67.5,
                84.37, 84.38, 101.25, 118.12, 118.13, 135.0, 151.87, 151.88,
                168.75, 185.62, 185.63, 202.5, 219.37, 219.38, 236.25, 253.12,
                253.13, 270.0, 286.87, 286.88, 303.75, 320.62, 320.63, 337.5,
                354.37, 354.38 };
        const char * names =  "North                 "
                              "North by east         "
                              "North-northeast       "
                              "Northeast by north    "
                              "Northeast             "
                              "Northeast by east     "
                              "East-northeast        "
                              "East by north         "
                              "East                  "
                              "East by south         "
                              "East-southeast        "
                              "Southeast by east     "
                              "Southeast             "
                              "Southeast by south    "
                              "South-southeast       "
                              "South by east         "
                              "South                 "
                              "South by west         "
                              "South-southwest       "
                              "Southwest by south    "
                              "Southwest             "
                              "Southwest by west     "
                              "West-southwest        "
                              "West by south         "
                              "West                  "
                              "West by north         "
                              "West-northwest        "
                              "Northwest by west     "
                              "Northwest             "
                              "Northwest by north    "
                              "North-northwest       "
                              "North by west         "
                              "North                 ";

        for (i = 0; i < 33; i++) {
                j = .5 + degrees[i] * 32 / 360;

                printf("%2d  %.22s  %6.2f\n", (j % 32) + 1, names + (j % 32) * 22,
                        degrees[i]);
        }

        return 0;
}

C#: using System;
using System.Collections.Generic;

namespace BoxTheCompass
{
    class Compass
    {
        string[] cp = new string[] {"North", "North by east", "North-northeast", "Northeast by north", "Northeast","Northeast by east", 
	    "East-northeast", "East by north", "East", "East by south", "East-southeast", "Southeast by east", "Southeast", 
            "Southeast by south", "South-southeast", "South by east", "South", "South by west", "South-southwest", "Southwest by south", 
            "Southwest", "Southwest by west", "West-southwest", "West by south", "West", "West by north", "West-northwest", 
            "Northwest by west", "Northwest", "Northwest by north", "North-northwest", "North by west", "North"};

        public void compassHeading(float a)
        {
            int h = Convert.ToInt32(Math.Floor(a / 11.25f + .5f)) % 32;
            Console.WriteLine( "{0,2}: {1,-22} : {2,6:N}",h + 1, cp[h], a );
        }
    };
    class Program
    {
        static void Main(string[] args)
       {
            Compass c = new Compass();
            float[] degs = new float[] {0.0f, 16.87f, 16.88f, 33.75f, 50.62f, 50.63f, 67.5f, 84.37f, 84.38f, 101.25f, 
                118.12f, 118.13f, 135.0f, 151.87f, 151.88f, 168.75f, 185.62f, 185.63f, 202.5f, 219.37f, 219.38f, 236.25f, 
                253.12f, 253.13f, 270.0f, 286.87f, 286.88f, 303.75f, 320.62f, 320.63f, 337.5f, 354.37f, 354.38f};

            foreach (float d in degs)
                c.compassHeading(d);

            Console.WriteLine("\nPress any key to continue...");
            Console.ReadKey();
        }
    }
}