C++ का इतिहास और विशेषताएँ

#include <iostream>

int main() {
	// Bjarne Stroustrup began "C with Classes" in 1979 at Bell Labs;
	// renamed C++ in 1983 -- ++ as a pun for "one step beyond C".
	std::cout << "C++ began life in 1979 as 'C with Classes'" << std::endl;
	return 0;
}

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// Include std::cout and std::cin
#include <iostream>

// Define the type Car
class Car {
// Members below can be accessed from outside the class
public:
	int speed = 0;
	void accelerate() { speed += 10; }
};

// Program execution starts in main()
int main() {
	Car car;
	car.accelerate();
	// Print to the console with cout
	std::cout << "Speed: " << car.speed << std::endl;
	// Return 0 to signal that the program finished successfully
	return 0;
}

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#include <iostream>

int main() {
	// No interpreter or VM -- compiles straight to native instructions.
	std::cout << "C++ compiles directly to machine code for minimal overhead" << std::endl;
	return 0;
}

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// Include std::cout and std::cin
#include <iostream>
// Include std::vector
#include <vector>
#include <algorithm>

// Program execution starts in main()
int main() {
	// Create a vector named nums (a resizable array)
	std::vector<int> nums = {5, 2, 8, 1};
	std::sort(nums.begin(), nums.end());
	// Print to the console with cout
	std::cout << "Sorted first element: " << nums[0] << std::endl;
	// Return 0 to signal that the program finished successfully
	return 0;
}

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#include <iostream>

int main() {
	// C++11 lambda expression -- a modern convenience added by later standards
	auto square = [](int x) { return x * x; };
	std::cout << "Square: " << square(5) << std::endl;
	return 0;
}

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