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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
// SPDX-FileCopyrightText: 2020 - 2025 Kohei Yoshida
//
// SPDX-License-Identifier: MIT
#include <mdds/trie_map.hpp>
#include <iostream>
int main()
{
//!code-start: type
using trie_map_type = mdds::trie_map<std::string, int>;
//!code-end: type
//!code-start: inst
// Cities in North Carolina and their populations in 2013.
trie_map_type nc_cities;
//!code-end: inst
//!code-start: populate
// Insert key-value pairs.
nc_cities.insert("Charlotte", 792862);
nc_cities.insert("Raleigh", 431746);
nc_cities.insert("Greensboro", 279639);
nc_cities.insert("Durham", 245475);
nc_cities.insert("Winston-Salem", 236441);
nc_cities.insert("Fayetteville", 204408);
nc_cities.insert("Cary", 151088);
nc_cities.insert("Wilmington", 112067);
nc_cities.insert("High Point", 107741);
nc_cities.insert("Greenville", 89130);
nc_cities.insert("Asheville", 87236);
nc_cities.insert("Concord", 83506);
nc_cities.insert("Gastonia", 73209);
nc_cities.insert("Jacksonville", 69079);
nc_cities.insert("Chapel Hill", 59635);
nc_cities.insert("Rocky Mount", 56954);
nc_cities.insert("Burlington", 51510);
nc_cities.insert("Huntersville", 50458);
nc_cities.insert("Wilson", 49628);
nc_cities.insert("Kannapolis", 44359);
nc_cities.insert("Apex", 42214);
nc_cities.insert("Hickory", 40361);
nc_cities.insert("Goldsboro", 36306);
//!code-end: populate
//!code-start: search-cha
std::cout << "Cities that start with 'Cha' and their populations:" << std::endl;
auto results = nc_cities.prefix_search("Cha");
for (const auto& kv : results)
{
std::cout << " " << kv.first << ": " << kv.second << std::endl;
}
//!code-end: search-cha
//!code-start: search-w
std::cout << "Cities that start with 'W' and their populations:" << std::endl;
results = nc_cities.prefix_search("W");
for (const auto& kv : results)
{
std::cout << " " << kv.first << ": " << kv.second << std::endl;
}
//!code-end: search-w
//!code-start: pack
auto packed = nc_cities.pack();
//!code-end: pack
//!code-start: search-c
std::cout << "Cities that start with 'C' and their populations:" << std::endl;
auto packed_results = packed.prefix_search("C");
for (const auto& kv : packed_results)
{
std::cout << " " << kv.first << ": " << kv.second << std::endl;
}
//!code-end: search-c
//!code-start: find-one
// Individual search.
auto it = packed.find("Wilmington");
std::cout << "Population of Wilmington: " << it->second << std::endl;
//!code-end: find-one
//!code-start: find-none
// You get an end position iterator when the container doesn't have the
// specified key.
it = packed.find("Asheboro");
std::cout << "Population of Asheboro: ";
if (it == packed.end())
std::cout << "not found";
else
std::cout << it->second;
std::cout << std::endl;
//!code-end: find-none
return EXIT_SUCCESS;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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