30 C++ Basic Exercises for Beginners with Solutions

Master beginner C++ skills with our comprehensive list of top 30 exercises. Dive into coding challenges that improve your understanding and proficiency in C++, setting a solid foundation for intermediate challenges. Start your journey to C++ mastery today!

Learning Objectives:

By the end of these exercises, you will have a strong understanding of C++ basics, including variables, control structures, functions, and basic input/output operations.

Exercise Instructions:

Start with the first exercise and attempt to solve it before checking the hint or solution.
Ensure you understand the logic behind each solution, as this will help you in more complex problems.
Use these exercises to reinforce your learning and identify areas that may require further study.

1. Write a program to print "Hello, World!".

Required Input:

Expected Output:

Hello, World!

Code In Cpp

#include int main() { // Logic to print Hello, World! return 0; }

Output

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2. Create a program that adds two integers and displays the result.

Required Input:

a = 5, b = 10

Expected Output:

Sum = 15

Code In Cpp

#include int main() { int a = 5, b = 10; // Logic to add a and b return 0; }

Output

Click Run Button to view compiled output

3. Write a program to find the maximum of three numbers.

Required Input:

a = 3, b = 7, c = 5

Expected Output:

Maximum = 7

Code In Cpp

#include int main() { int a = 3, b = 7, c = 5; // Logic to find the maximum return 0; }

Output

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4. Implement a program to calculate the factorial of a number.

Required Input:

n = 5

Expected Output:

Factorial = 120

Code In Cpp

#include int main() { int n = 5; // Logic to calculate factorial return 0; }

Output

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5. Write a program to check if a number is even or odd.

Required Input:

n = 4

Expected Output:

4 is Even

Code In Cpp

#include int main() { int n = 4; // Logic to check even or odd return 0; }

Output

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6. Create a program to swap two numbers using a temporary variable.

Required Input:

a = 5, b = 10

Expected Output:

After swapping: a = 10, b = 5

Code In Cpp

#include int main() { int a = 5, b = 10; // Logic to swap a and b return 0; }

Output

Click Run Button to view compiled output

7. Write a program to calculate the sum of digits of a number.

Required Input:

n = 123

Expected Output:

Sum of digits = 6

Code In Cpp

#include int main() { int n = 123; // Logic to calculate sum of digits return 0; }

Output

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8. Implement a program to reverse a number.

Required Input:

n = 12345

Expected Output:

Reversed Number = 54321

Code In Cpp

#include int main() { int n = 12345; // Logic to reverse the number return 0; }

Output

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9. Create a program to find the length of a string.

Required Input:

str = "Hello"

Expected Output:

Length = 5

Code In Cpp

#include #include int main() { std::string str = "Hello"; // Logic to find the length of the string return 0; }

Output

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10. Write a program to concatenate two strings.

Required Input:

str1 = "Hello", str2 = " World"

Expected Output:

Concatenated String = Hello World

Code In Cpp

#include #include int main() { std::string str1 = "Hello"; std::string str2 = " World"; // Logic to concatenate strings return 0; }

Output

Click Run Button to view compiled output

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