Answers for "how to copy elements from one vector to another in c++"

copy a part of a vector in another in c++

// Copying vector by copy function 
copy(vect1.begin(), vect1.end(), back_inserter(vect2));

copying a vector to another

// Declaring new vector and copying
// element of old vector
// constructor method, Deep copy
vector<int> vect2(vect1);

copying a vector to another

// Using assignment operator to copy one
// vector to other
vect2 = vect1;