std - C++ Delete Duplicate Entries in a vector

Question

I have a vector of times, and there are a number of places where the time is duplicated. The time vector is only one column of data from a text file, there are several other vectors (velocity, position, etc) from the same data text file. How do I go about deleting the duplicate entries based on time, while maintaining all the other entries? Say:

if (time[j] == time[j + 1]
{
    do stuff...
}

I actually have several vectors, so I will be deleting the duplicate entries from them as well. I need to preserve the order of data in the other vectors (they are not necessarily consecutive.)

I only want to delete consecutive duplicate points.

Thanks.

Answer 1

Well, a cute way you could do it is to sort the vector using std::sort, and then you can use std::unique to remove consecutive duplicates from the vectors whole range (.begin() to .end()).

You can probably find a more efficient way, but this is an interesting one at least and will only require 2 lines of code :)