Introduction
Although C# syntax is very expressive, it is also straightforward to master. Developers who are familiar with any of these languages may usually start working effectively in C# fairly quickly. Here are frequently used C# coding challenges and solutions for beginners. Unveil our C# coding course syllabus to get started.
List of C Sharp Coding Challenges faced by beginners
- Sum the Odd Numbers
- Finding Factorial Number
- Convert Days to Hours
- Word Count in a Text String
C Sharp Coding Challenges and Solutions
You can practice with these four C# coding tasks. They are an excellent method to improve your coding abilities. Every challenge begins with a description of the task and the anticipated outcomes. These coding challenges are designed for beginners.
1. Sum the Odd Numbers
Challenges:
To add up all of the odd integers in a collection, use an algorithm. The following tests should be passed by your solution:
new App().SumOdds(new int[]{1, 2, 3, 4, 5}) -> 9
new App().SumOdds(new int[]{1, 2, 3}) -> 4
new App().SumOdds(new int[]{2, 2}) -> 0
new App().SumOdds(new int[]{1, 1}) -> 2
That one ought to be quite simple. All you have to do is determine if each number in the collection is odd or even. Add its value to the total if it is odd.
Solutions:
Here is the code:
using System;
namespace DotNetTutorials
{
class SumOfEvenNumbers
{
static void Main(string[] args)
{
int sum = 0;
Console.Write(“Enter value a Number:”);
int Number = Convert.ToInt32(Console.ReadLine());
//start with 1
//1+2 = 3
//3+2 = 5
for (int i = 1; i <= Number; i += 2)
{
sum += i;
}
Console.Write($”Sum of Odd numbers from 1 to {Number} is : {sum}”);
Console.ReadLine();
}
}
}
Output:
Students can learn easily at our C Sharp Tutorial for beginners.
2. Finding Factorial Number
Challenges:
A mathematical operation applied to a non-negative integer is called a factorial. The product of every positive integer between 1 and “n,” represented as “n!,” is the factorial of a non-negative integer “n.”
Method: n! = n × (n – 1) × (n – 2) × … × 2 × 1
Example:
5! = 5 × 4 × 3 × 2 × 1 = 120
0! is defined to be 1
Check out the Factorial() function’s tests. The expected outcomes:
new App().Factorial(0) -> 1
new App().Factorial(1) -> 1
new App().Factorial(2) -> 2
new App().Factorial(3) -> 6
Solutions:
Here is the original code as well. All you have to do is complete the Factorial() function’s implementation:
using System;
public class FactorialExample
{
public static void Main(string[] args)
{
int i,fact=1,number;
Console.Write(“Enter any Number: “);
number= int.Parse(Console.ReadLine());
for(i=1;i<=number;i++){
fact=fact*i;
}
Console.Write(“Factorial of ” +number+” is: “+fact);
}
}
Output
Enter any Number: 6
Factorial of 6 is: 720
Review your skills with our C Sharp interview questions and answers.
3. Convert Days to Hours
Challenges:
Converting days into hours is your current task. Hours = d * 24 is the basic formula.
Check your knowledge level with our smart Knowledge Assessment Tool
- Instant skill evaluation with accurate scoring
- Identify strengths and learning gaps easily
- Designed for students and working professionals
- Smart assessment to guide your career growth
Take Your Eligibility Report Instantly
The following tests should be passed by your function:
new App().ToDays(24) -> 1
new App().ToDays(6) -> 0,25
new App().ToDays(12) -> 0,5
new App().ToDays(48) -> 2
Solutions:
Code for Converting Days to Hours
using System;
class MainClass {
public static void Main (string[] args) {
Console.WriteLine (“Please enter days:”);
int days = Convert.ToInt32(Console.ReadLine());
int hours = days * 24;
Console.WriteLine(hours + ” Hours”);
}
}
Output
Please enter days: 3
72 Hours
Gain a practical understanding of C Sharp through project ideas.
4. Word Count in a Text String
Challenges:
The final one involves counting the words in a specified text string. First, let’s talk about tests:
new App().CountWords(null) -> 0
new App().CountWords(“Hello”) -> 1
new App().CountWords(“Hello SLA”) -> 2
new App().CountWords(“Hello SLA !!!”) -> 3
Solution Code:
public static void numberofwordsinstring()
{
Console.Write(“Enter the string : “);
string inputString = Console.ReadLine();
int result = 0;
inputString = inputString.Trim();
if (inputString == “”)
Console.WriteLine(0);
while (inputString.Contains(” “))
inputString = inputString.Replace(” “, ” “);
foreach (string y in inputString.Split(‘ ‘))
result++;
Console.WriteLine(“Number of words is : ” +result);
Console.ReadLine();
}
Explore salary details at our C Sharp Developer Salary for Freshers and Experienced.
FAQs
1. Why is C# called C sharp?
C# is called C Sharp because it comes from notation. The name means it is a better version of the C programming language. C Sharp is used to make software.
2. Is C# 100% object-oriented?
C# is much an object-oriented language but it is not completely pure. This is because it also has some features like basic data types and procedural programming.
3. What are the 4 pillars of C#?
The four main things about C# are encapsulation, abstraction, inheritance and polymorphism. These are the ideas of object-oriented programming. They are like the foundation of C#.
4. Is C# better than Python?
C# is really good for making big business apps and games. Python is great for automating tasks working with data and easy scripting.
5. Will C# be replaced by AI?
AI can help people who write C# code. It cannot replace the creative part of programming. People are still needed to make decisions and solve real problems. C# will still be used by people.
6. Is it worth learning C# in 2026?
Yes learning C# in 2026 is an idea. This is because C# is used to make web apps, big business software, cloud systems and games, with Unity. C# is still a useful language to know.
Conclusion
We hope this article helps you practice some of the common C# coding challenges and solutions. Hone your skills with our C-Sharp training. For more info on our training and placement feature, visit our Best Placement and Training Institute.
