how to remove first element from vector in c++ code example

Example 1: remove element by index from vector c++

// Deletes the second element (vec[1])
vec.erase(vec.begin() + 1);

// Deletes the second through third elements (vec[1], vec[2])
vec.erase(vec.begin() + 1, vec.begin() + 3);

Example 2: c++ vector pop first element

std::vector<int> vect;

vect.erase(vect.begin());

Example 3: delete from front in vector c++

// Deleting first element
vector_name.erase(vector_name.begin());

// Deleting xth element from start
vector_name.erase(vector_name.begin()+(x-1));

// Deleting from the last
vector_name.pop_back();

Example 4: c++ remove element from vector

vector.erase(position) // remove certain position
// or
vector.erase(left,right) // remove positions within range

Example 5: remove first element from vector c++

// Deletes the first element from vector v
v.erase(v.begin());