14 STL

#include <iostream>
#include <list>
#include <map>
using namespace std;

void lists()
{
		list<int> lst; // create an empty list
	    int i;
	    for(i=0; i<10; i++) lst.push_back(i);
	    cout << "Size = " << lst.size() << endl;
	    cout << "Contents: ";
	    list<int>::iterator p = lst.begin();
	    while(p != lst.end())
	    {
	    	cout << *p << " ";
			p++;
		}
	    cout << "\n\n";
	    // change contents of list
	    p = lst.begin();
	    while(p != lst.end()) 
	    {
			*p = *p + 100;
			p++; 
		}
	    cout << "Contents modified: ";
	    p = lst.begin();
	    while(p != lst.end()) 
	    {
	    	cout << *p << " ";
	 		p++;
	 	}
	 	cout<<endl;
}

void maps()
{
		map<char, int> m;
    	int i;
	    // put pairs into map
	    for(i=0; i<26; i++) 
	    {
	    	m.insert(pair<char, int>('A'+i, 65+i));
	    }
	    char ch;
	    cout << "Enter key: (Use Uppercase) ";
	    cin >> ch;
	    map<char, int>::iterator p;
	    // find value given key
	    p = m.find(ch);
	    if(p != m.end())
	    	cout << "Its ASCII value is  " << p->second << endl;
	    else
	    	cout << "Key not in map.\n";
}

int main()
{
	int choice;

	while(1)
	{
		cout<<"1. List"<<endl;
		cout<<"2. Map"<<endl;
		cin>> choice;

		switch(choice)
		{
			case 1:
				lists();
				break;

			case 2:
				maps();
				break;

			default:
				exit(0);
		}
	}

	
}