Thread: Efficiency question...

I have made two classes that use basically the same exact ways of doing things, but I cant seem to figure out which one is faster to use.
I am only going to show my variables for the classes cause there are alot of prototypes in the classes.

Code:

class MusicPlayer
{
public:
    //Functions

private:
    //Variables
    std::map<std::string, std::string> name_;
    std::map<std::string, int> songnumber_;
    std::map<std::string, int> songlengthMS_;
    
    //other vars
};

and this is the other class

Code:

class MusicPlayer
{
public:
    //Functions
private:
    //Variables
    std::vector<std::string> name_;
    std::vector<int> songnumber_;
    std::vector<int> songlengthMS_;
    
    //other vars
};

Questions:
1) Which is faster
2) Which is (opinion) more memory efficient
3) Is there maybe a even better way to do this?
those are the two classes. I want to figure out which one is faster when using a relatively large amount of files. ( between 300-1000 ). Thank you for any assistance or help you may provide.

Those don't do the same things, so which one is faster depends on what you plan to do with the data. Also, which is is better depends on a lot more than which one is faster.

For name_, are you going to do some sort of lookup to see if the name exists? Are you going to have some sort of playlist order? How are you going to use the name_ variable?

For songnumber_, is this related to the song's name? Does the songnumber need to be kept connected to its name or vice versa?

Same thing for songlength.

One thought is that you might consider combining song information into a class and store instances of that class in your MusicPlayer. Among other things, this will make things easier when you want to store things like author, genre, etc.

Regardless, you still need to indicate how you want to use this data. What data needs to be kept together, what data will need to be looked up, etc.