#include <iostream>
#include <unordered_map>
using namespace std;
 
int main() {
	unordered_map<string, int> strs {
		{ "one", 1 },
		{ "two", 2 },
		{ "three", 3 }
	};
 
	// 添え字でアクセス可能
	cout << strs["one"] << endl;
 
	cout << "-----" << endl;
 
	// Iteratorで使う場合は fist, second で添え字と要素にアクセスする
	for (unordered_map<string, int>::iterator it = strs.begin(); it != strs.end(); it++) {
		cout << it->first << ":" << it->second << endl;
	}
 
	cout << "-----" << endl;
 
	// 要素の追加もラク
	strs["for"] = 4;
 
	for (unordered_map<string, int>::iterator it = strs.begin(); it != strs.end(); it++) {
		cout << it->first << ":" << it->second << endl;
	}
 
	return 0;
}