Round #737

Write a LINQ Select that maps a list of strings to their lengths.

```csharp using System; using System.Collections.Generic; using System.Linq; public class Program { public static void Main() { // Define a list of strings List<string> strings = new List<string> { "apple", "banana", "cherry" }; // Use LINQ Select to map the list of strings to their lengths var lengths = strings.Select(s => s.Length); // Print the lengths foreach (var length in lengths) { Console.WriteLine(length); } } } ``` In this code: - We define a list of strings `strings`. - We use the `Select` method to create a new sequence that contains the lengths of the strings in the original list. The lambda expression `s => s.Length` specifies that we want to select the `Length` property of each string `s`. - We print the lengths to the console. When you run this code, it will output: ``` 5 6 6 ``` Which are the lengths of the strings "apple", "banana", and "cherry", respectively.

```csharp using System; using System.Collections.Generic; using System.Linq; public class Program { public static void Main() { var strings = new List<string> { "apple", "banana", "cherry" }; var lengths = strings.Select(s => s.Length).ToList(); foreach (var length in lengths) { Console.WriteLine(length); } } } ``` This C# code uses LINQ's `Select` method to map a list of strings to their lengths. The `Select` method applies a transformation to each element in the input sequence, in this case, the `Length` property of each string. The result is a new sequence containing the lengths of the input strings. The `ToList` method is used to materialize the result as a list. In the `Main` method, we create a list of strings, apply the `Select` method to get the lengths, and then print each length to the console.