/**************************************** ***************************************** BASIC INTRODUCTION TO VECTORS By Bob Bryson @b_bryson_bob ***************************************** ****************************************/ /// dont forget to upvote if this was helpful to you! // thanks #include #include using namespace std; int main(int argc, char* argv[]) { // vector veca; // initializes an vector // vector vecb(10); // initializes a vector of then elements // vector vecc(10, 2) // initializes a vector of 10 elements and assigns them the default value of 2 // vector vect(vecc) // copy constructor, copies the value of vecc, to vect vector myvec; myvec.push_back(10); // add the value inside the parentheses to the end ot the vector myvec.push_back(14); myvec.push_back(56); myvec.push_back(89); myvec.push_back(56); myvec.push_back(67); // vect.at() use to access individual values using indices // it is a safe method since reaching the end of the vector causes an exception to be thrown instead of the program crashing //thw below function may be used to access the elements of a vector without any program crashes /*for(int index = 0; index < 20; ++index) { try { cout << "Element: " << index << ": " << myvec.at(index) << endl; } catch(exception& e) { cout << "Element " << index << ": index exceeds vector dimensions." << endl; } }*/ //or... for(int index = 0; index < myvec.size(); index++) { cout << "Element: " << index << ": " << myvec.at(index) << endl; } return 0; }

Simple Introduction to Vectors v1.0