#include <iostream>
#include <vector>

/*
 *
 *
 *
 *
 */

int summing(int a, int b) {

	return a + b;
}

int subtracting(int a, int b) {

	return a - b;
}

int multiplying(int a, int b) {

	return a * b;
}

int dividing(int a, int b) {

	return a / b;
}

int fpfunction_as_argument(int(*calculate)(int, int), int a, int b) {

	return calculate(a, b);
}



int main () {

	int (*fpfp)(int, int) = summing;
	int (*fpfp1)(int, int) = subtracting;
	int (*fpfp2)(int, int) = multiplying;
	int (*fpfp3)(int, int) = dividing;
	std::vector<int(*)(int, int)> funcvec = {fpfp, fpfp1, fpfp2, fpfp3};
	for(auto a : funcvec) {
		std::cout << a(10, 10) << std::endl;
	}
	
	std::cout << std::endl;
	std::cout << fpfunction_as_argument(multiplying, 10, 929) << std::endl;
	return 0;
}