C-Code

#include <iostream>
#include <vector>

void split_names(std::string name, std::vector<std::string> &names)
{
    std::string single_name = ""; 
    for (auto x : name) { 
        if (x == ' ' || x == '-') { 
            names.push_back(single_name);
            single_name = "";
        } else { 
            single_name = single_name + x; 
        }
    }
    names.push_back(single_name);
}

std::string get_initials(std::vector<std::string> &names)
{
    std::string initials;
    for (int i = 0; i < names.size(); i++) { 
        initials = initials + names[i][0];
    }
    return initials;
}

int main()
{
    std::string name;
    std::vector<std::string> names;

    std::cout << "Enter your name: ";
    std::getline(std::cin, name);

    split_names(name, names);

    std::cout << "Your initials: " << get_initials(names) << std::endl;
}