C++ is a powerful, high-performance language. Every C++ program starts with the main() function and uses various headers like <iostream> for input/output operations.

Use C++ when performance is critical—competitive programming, game engines, or systems software.

• Compilation: $O(N)$
• Execution: extremely fast (native code)

cpp Standard
#include <iostream>

int main() {
    std::cout << "Welcome to Interview Forge!" << std::endl;
    return 0;
}

• Forgetting the ; at the end of statements.
• Not including the correct header files.
• Forgetting to return 0 from the main function.