Tag: tutorial

All the articles with the tag "tutorial".

• C++ cin.ignore(): Fix getline Skipping After cin >>

  13 Jul, 2026

  Why getline is skipped after cin >> in C++, and how cin.ignore() clears the leftover newline. Fix the input buffer bug with clear, beginner-friendly examples.

• GCD and LCM in C++: The Euclidean Algorithm Explained

  13 Jul, 2026

  Find the GCD and LCM of two numbers in C++. Learn the Euclidean algorithm with loops and recursion, the LCM formula, and the built-in std::gcd in C++17.

• Leap Year Program in C++: Check if a Year Is a Leap Year

  13 Jul, 2026

  Write a leap year program in C++. Learn the divisible-by-4, 100, and 400 rule, see the clean one-line condition, and build a reusable isLeapYear function.

• Reverse a Number in C++: Flip the Digits with a While Loop

  13 Jul, 2026

  Reverse a number in C++ using modulo and integer division. Step-by-step while-loop code, handling negatives, and a version that detects integer overflow.