sorted and shuffled vectors

[kohline]

hi i"m new to c++ and became a program to insert some stuff.

there is a class called Cluster those clusters appear mostly as vector<Cluster>
if i define

Cluster cluster;

there is something like

cluster.size()

which will give me the number of elements inside my cluster. i now want to sort the vector<Cluster> with respect to the number of elements in my cluster.
afterwards i want to pick only the ones with less than 5 elements, and erase them from vector<Cluster>. afterwards i have to access the vector<Cluster> but i dont want the vector<Cluster> to be accessed from smallest to largest cluster.

are there some ideas how to achieve this?

thanks a lot

kohline

[Mitsakos]

You can overload the operators "<", ">", "==" for your class and use the sort() function from the algorithms...
Using the "<" operator you can find which one has less than 5 elemnts and erase it.

afterwards i have to access the vector<Cluster> but i dont want the vector<Cluster> to be accessed from smallest to largest cluster.

Use random() to shuffle it...

[kohline]

thanks a lot. i'll try this out and see how far i can get.