Rust Beginners Exercises with Solutions and Explanations

Rust Basic Exercises [19 exercises with solution and Explanation]

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1. Write a Rust program that gathers system information such as the Rust version, operating system details, and system architecture.

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2. Write a Rust program that accepts two numbers from the user, adds them together, and displays the result.

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3. Write a Rust program that declares a mutable variable counter and initializes it with 0. Then increase it by 1 and decrease it by 1. At the end, print the variable value for each stage.

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4. Write a Rust program that converts an integer to a string and vice versa and prints the result.

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5. Write a Rust program that performs basic Math operations - addition, subtraction, multiplication, and division operations on two integers.

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6. Write a Rust program that checks if a number is even or odd and prints the result.

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7. Write a Rust program that counts from 1 to 10 using a loop and prints each number.

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8. Write a Rust program that prints all even numbers from 1 to 20 using a while loop.

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9. Write a Rust program that prints all elements of an array using a for loop.

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10. Write a Rust program that defines a function that calculates the factorial of a given number and returns the result.

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11. Write a Rust program that creates two variables p and q, assigns a value to p, then assigns p to q and try to use p again.

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12. Write a Rust function that takes a reference to a variable as a parameter and modifies its value.

13. Write a Rust function that takes two string references and returns the smallest one.

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14. Write a Rust program that defines a struct Person with fields like name and age.

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15. Write a Rust program that creates an instance of the Person struct and prints its fields.

16. Write a Rust program that defines an enum Color with variants representing different colors.

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17. Write a Rust function that takes an optional integer and prints its value if it exists.

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18. Write a Rust function that returns a success value for positive numbers and an error value for negative numbers.

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19. Write a Rust program that handles the result of a division operation, using pattern matching to distinguish between success and failure.

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