C++ Programming Tutorial

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Topics
Introduction Getting Started Hello World Variables & Types Control Flow Functions Arrays & Vectors Pointers & References Classes & Objects Inheritance & Polymorphism Templates STL
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Standard Template Library (STL)

The STL provides ready-to-use containers (`vector`, `map`, `unordered_map`), algorithms (`sort`, `find`, `accumulate`), and iterators to write efficient, reusable code.

Sort & Iterate
#include \n#include \n#include \n\nint main(){\n    std::vector v = {5,3,1,4,2};\n    std::sort(v.begin(), v.end());\n    for(int x: v) std::cout << x << " ";\n    return 0;\n}
Tips
  • Prefer standard algorithms over manual loops when possible.
  • Use the right container for the job (e.g., `std::vector` for contiguous storage, `std::map` for ordered key-value pairs).
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