Delete element from C++ array

Question

Please tell me how to delete an element from a C++ array.

My teacher is setting its value to 0, is that correct?

Answer 1

it's an old topic but I'm gonna put this answer here for anyone who's recently seen this question!

deleting an element from the array is a heavy operation you can easily keep track of your elements with an index. anyway, you can call this function whenever you want to delete the first x element of a vector.

vector remove_frist_x_items(const vector& arr, int x)
{
    return vector(arr.begin() + x, arr.end());
}

// Delete the first element from the array
auto new_array = remove_frist_x_items(the_old_one, 1);