Runnable C and C++ guides

Beginner C/C++ Exercises

Build confidence with 20 runnable exercises covering numbers, strings, arrays, matrices, loops, and conditions in C and C++.

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20 C/C++ lessons

FizzBuzz

Print Fizz, Buzz, or FizzBuzz for numbers from 1 through 15.

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Check a Prime Number

Determine whether an integer is prime.

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Fibonacci Sequence

Generate the first ten Fibonacci numbers.

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Calculate a Factorial

Calculate a factorial with an iterative loop.

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Check a Palindrome

Check whether a word reads the same in both directions.

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Reverse a String

Reverse text without changing its characters.

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Sum Array Values

Calculate the sum of all values in an array.

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Find the Largest Array Value

Find the maximum value in an array.

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Count Vowels

Count vowels in a line of text.

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Multiplication Table

Print a multiplication table for one number.

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Decimal to Binary

Convert a positive decimal integer to binary.

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Greatest Common Divisor

Find the greatest common divisor of two integers.

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Check a Leap Year

Determine whether a year is a leap year.

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Temperature Converter

Convert Celsius to Fahrenheit.

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Simple Calculator

Apply an arithmetic operator to two numbers.

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Count Words

Count whitespace-separated words in a sentence.

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Remove Duplicate Values

Remove repeated array values while preserving order.

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Transpose a Matrix

Exchange matrix rows and columns.

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Find the Second Largest Value

Find the second distinct largest array value.

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Character Frequency

Count occurrences of each lowercase letter.

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