Data commit

Task/Convert-seconds-to-compound-duration/C-sharp/convert-seconds-to-compound-duration-1.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace ConvertSecondsToCompoundDuration
+{
+  class Program
+  {
+    static void Main( string[] args )
+    {
+      foreach ( string arg in args )
+      {
+        int duration ;
+        bool isValid = int.TryParse( arg , out duration ) ;
+
+        if ( !isValid     ) { Console.Error.WriteLine( "ERROR: Not an integer: {0}"           , arg ) ; }
+        if ( duration < 0 ) { Console.Error.WriteLine( "ERROR: duration must be non-negative" , arg ) ; }
+
+        Console.WriteLine();
+        Console.WriteLine( "{0:#,##0} seconds ==> {1}" , duration , FormatAsDuration(duration) ) ;
+
+      }
+    }
+
+    private static string FormatAsDuration( int duration )
+    {
+      if ( duration < 0 ) throw new ArgumentOutOfRangeException("duration") ;
+      return string.Join( ", " , GetDurationParts(duration)  ) ;
+    }
+
+    private static IEnumerable<string> GetDurationParts( int duration )
+    {
+      var parts = new[]
+      {
+        new { Name="wk" , Length = 7*24*60*60*1 , } ,
+        new { Name="d"  , Length =   24*60*60*1 , } ,
+        new { Name="h"  , Length =      60*60*1 , } ,
+        new { Name="m"  , Length =         60*1 , } ,
+        new { Name="s"  , Length =            1 , } ,
+      } ;
+
+      foreach ( var part in parts )
+      {
+        int n = Math.DivRem( duration , part.Length , out duration ) ;
+        if ( n > 0 ) yield return string.Format( "{0} {1}" , n , part.Name ) ;
+      }
+
+    }
+
+  }
+
+}

Task/Convert-seconds-to-compound-duration/C-sharp/convert-seconds-to-compound-duration-2.cs

@@ -0,0 +1,14 @@
+private static string ConvertToCompoundDuration(int seconds)
+{
+    if (seconds < 0) throw new ArgumentOutOfRangeException(nameof(seconds));
+    if (seconds == 0) return "0 sec";
+
+    TimeSpan span = TimeSpan.FromSeconds(seconds);
+    int[] parts = {span.Days / 7, span.Days % 7, span.Hours, span.Minutes, span.Seconds};
+    string[] units = {" wk", " d", " hr", " min", " sec"};
+
+    return string.Join(", ",
+        from index in Enumerable.Range(0, units.Length)
+        where parts[index] > 0
+        select parts[index] + units[index]);
+}