Problems

Use the following problems to test your skills at working with advanced C# language features. Give each problem a try before you turn to the solutions and download the example programs.

73. Directory size, LINQ style

Repeat Problem 65. Directory size. This time, add a SizeLINQ extension method to the DirectoryInfo class that uses LINQ to calculate the size of the files inside the directory.

74. Directory size, PLINQ style

Repeat Problem 73. Directory size, LINQ style, but this time use PLINQ to add file lengths in parallel. Make the test program perform...