example1_basic_usage.cpp

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#include <iostream>
#include <unordered_map>
#include <string>

int main() {
    std::unordered_multimap<std::string, int> umm;

    // Inserting elements
    umm.insert({"apple", 1});
    umm.insert({"banana", 2});
    umm.insert({"apple", 3});  // Duplicate key

    // Iterating and printing
    for (const auto& pair : umm) {
        std::cout << pair.first << ": " << pair.second << std::endl;
    }

    // Counting elements with a specific key
    std::cout << "Count of 'apple': " << umm.count("apple") << std::endl;

    return 0;
}