.NET Interview 50

1 Hello World program Easy Basic C# Programs 2 Swap two numbers without third variable Easy Basic C# Programs 3 Check even or odd Easy Basic C# Programs 4 Print numbers 1 to 5 Easy Basic C# Programs 5 Sum of first 6 natural numbers Easy Basic C# Programs 6 Count evens from 1 to 10 Easy Basic C# Programs 7 Print numbers 1 to 12 Easy Basic C# Programs 8 Sum of first 13 natural numbers Easy Basic C# Programs 9 Count evens from 1 to 17 Easy Basic C# Programs 10 Print numbers 1 to 19 Easy Basic C# Programs 11 Sum of first 20 natural numbers Easy Basic C# Programs 12 Count evens from 1 to 24 Easy Basic C# Programs

1 Sum of array elements Easy C# Programs — Arrays 2 Find maximum in array Easy C# Programs — Arrays 3 Reverse an array in-place Medium C# Programs — Arrays 4 Count occurrences of element Easy C# Programs — Arrays 5 Second largest element Medium C# Programs — Arrays 6 Array sum (5 elements) #1 Easy C# Programs — Arrays 7 Array max (6 elements) #2 Easy C# Programs — Arrays 8 Reverse array #3 Medium C# Programs — Arrays 9 Linear search 4 #4 Easy C# Programs — Arrays 10 Average array #5 Easy C# Programs — Arrays 11 Reverse a string Easy C# Programs — Strings 12 Check palindrome string Easy C# Programs — Strings 13 Count vowels in string Easy C# Programs — Strings 14 First non-repeating character Medium C# Programs — Strings 15 Anagram check Medium C# Programs — Strings 16 Reverse "code" #1 Easy C# Programs — Strings 17 Count vowels in "practice" #2 Easy C# Programs — Strings 18 Uppercase "interview" #3 Easy C# Programs — Strings

1 Filter even numbers with LINQ Easy C# Programs — LINQ 2 Group employees by department Medium C# Programs — LINQ 3 Select top 3 salaries Medium C# Programs — LINQ 4 Join orders with customers Hard C# Programs — LINQ 5 LINQ evens 1..10 #1 Easy C# Programs — LINQ 6 LINQ squares 1..11 #2 Easy C# Programs — LINQ 7 LINQ descending 1..12 #3 Easy C# Programs — LINQ 8 LINQ count above 6 #4 Medium C# Programs — LINQ 9 Collections — List remove duplicates Easy C# Programs — Collections 10 Collections — Dictionary frequency map Medium C# Programs — Collections 11 Collections — Stack balanced brackets Hard C# Programs — Collections 12 List — add and sum #1 Easy C# Programs — Collections 13 Dictionary — word count #2 Medium C# Programs — Collections 14 HashSet — remove duplicates #3 Easy C# Programs — Collections

1 Sum of array elements Easy C# Programs — Data Structures 2 Find maximum in array Easy C# Programs — Data Structures 3 Reverse an array in-place Medium C# Programs — Data Structures 4 Count occurrences of element Easy C# Programs — Data Structures 5 DS — reverse array [1, 2, 3, 4, 5] #1 Easy C# Programs — Data Structures 6 data structures exercise #1 Hard C# Programs — Data Structures 7 DS — stack push/pop #2 Easy C# Programs — Data Structures 8 data structures exercise #2 Medium C# Programs — Data Structures 9 Bubble sort Medium C# Programs — Sorting 10 Selection sort Medium C# Programs — Sorting 11 Merge two sorted arrays Hard C# Programs — Sorting 12 Bubble sort #1 Medium C# Programs — Sorting