insert values in vector c++ code example

Example 1: inserting at start in vector c++

// Inserting at start
vector_name.insert(vector_name.begin(), element_to_be_inserted);

// Inserting after xth element
vector_name.insert(vector_name.begin()+(x-1), element_to_be_inserted);

// Inserting at last
vector_name.push_back(element_to_be_inserted);

Example 2: 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 3: insert at position in vector c++

// where v is the vector to insert, i is
// the position, and value is the value

v.insert(v.begin() + i, v2[i])

Example 4: adding element in vector c++

vector_name.push_back(element_to_be_added);