CppLearning/EssentialCpp/chap2_4.cpp

#include "utils.h"
#include <limits>
vector<u32>* fibon_seq(int size) {
	static vector<u32> elems;

	if (size <= 0 || size > 1024) {
		cout << "size is invalid!" << endl;
		return 0;
	}
		

	int current_size = elems.size();

	if (size > current_size) {
		for (int ix = current_size; ix < size; ++ix) {
			if (ix < 2) {
				elems.push_back(1);
			}
			else {
				int value_ix = elems[ix - 1] + elems[ix - 2];
				elems.push_back(value_ix);
			}
			
		}
	}

	return &elems;

}

int main() {
	vector<u32>* v = fibon_seq(100);
	if (v) {
		display(*v);
	}
	

	int max_int = numeric_limits<long>::max();
	cout << max_int << endl;

	return 0;
}