Write a program using the C++ STL map container to implement simple management of fruit prices, including operations such as adding, printing, searching, modifying, and deleting. In this program, you create a map called `fruitPrices` to store the prices of different fruits. Then add some initial fruit prices, print the current fruit prices, and then allow the user to search for, modify, or delete a fruit price. Finally, print the updated fruit prices.

Sure, here's an example program that uses the C++ STL map container to implement simple management of fruit prices:

#include <iostream>
#include <map>
#include <string>

using namespace std;

int main() {
    // Create a map called fruitPrices to store the prices of different fruits
    map<string, double> fruitPrices;

    // Add some initial fruit prices
    fruitPrices["apple"] = 1.99;
    fruitPrices["banana"] = 0.99;
    fruitPrices["orange"] = 2.49;
    fruitPrices["grape"] = 3.99;

    // Print the current fruit prices
    cout << "Current fruit prices:" << endl;
    for (auto it = fruitPrices.begin(); it != fruitPrices.end(); it++) {
        cout << it->first << ": $" << it->second << endl;
    }

    // Allow the user to search for, modify, or delete a fruit price
    string searchFruit;
    cout << "Enter a fruit to search for, modify, or delete: ";
    cin >> searchFruit;

    // Search for the fruit
    auto searchIter = fruitPrices.find(searchFruit);
    if (searchIter == fruitPrices.end()) {
        cout << "Fruit not found." << endl;
    } else {
        cout << "Found " << searchIter->first << ": $" << searchIter->second << endl;

        // Modify the fruit price
        char modifyChoice;
        cout << "Do you want to modify the price? (Y/N): ";
        cin >> modifyChoice;
        if (modifyChoice == 'Y' || modifyChoice == 'y') {
            double newPrice;
            cout << "Enter the new price: $";
            cin >> newPrice;
            searchIter->second = newPrice;
            cout << "Price updated." << endl;
        }

        // Delete the fruit price
        char deleteChoice;
        cout << "Do you want to delete the price? (Y/N): ";
        cin >> deleteChoice;
        if (deleteChoice == 'Y' || deleteChoice == 'y') {
            fruitPrices.erase(searchIter);
            cout << "Price deleted." << endl;
        }
    }

    // Print the updated fruit prices
    cout << "Updated fruit prices:" << endl;
    for (auto it = fruitPrices.begin(); it != fruitPrices.end(); it++) {
        cout << it->first << ": $" << it->second << endl;
    }

    return 0;
}

In this program, we first create a `map<string, double>` called `fruitPrices` to store the prices of different fruits. We then add some initial fruit prices, and print the current fruit prices using a for-loop that iterates over the `fruitPrices` map.

Next, we allow the user to search for, modify, or delete a fruit price. We prompt the user to enter a fruit to search for, and then use the `find` method of the `fruitPrices` map to search for the fruit. If the fruit is found, we prompt the user to modify or delete the fruit price, and then update the `fruitPrices` map accordingly using the `[]` or `erase` methods.

Finally, we print the updated fruit prices using another for-loop that iterates over the `fruitPrices` map.