how to assign one vector to another in c++ code example

Example 1: how to append one vector to another c++

vector<int> a;
vector<int> b;
// Appending the integers of b to the end of a 
a.insert(a.end(), b.begin(), b.end());

Example 2: copy a part of a vector in another in c++

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