How do I use maps in C++?

How do I use maps in C++?

In C++, maps are part of the Standard Template Library (STL). They store key-value pairs and allow for fast retrieval.

Can you show me a simple example of a map?

Sure! Here's a basic example:

#include <iostream>
#include <map>

int main() {
    std::map<std::string, int> ageMap;
    ageMap["Alice"] = 30;
    ageMap["Bob"] = 25;

    std::cout << "Alice's age: " << ageMap["Alice"] << std::endl;
    return 0;
}

What are the advantages of using maps over arrays?

Maps provide faster lookups for key-value pairs compared to arrays, especially when dealing with large datasets.

Are there any limitations to using maps?

Yes, maps have a higher memory overhead compared to arrays and may be slower for certain operations like iteration.