vector.cpp

#include<iostream>
#include<vector>

using namespace std;

int main(){
    cout<<"witness my exciting first use of vectors!\n";
    cout<<"Enter as many letter as you like, enter ! to quit.\n";
    char ch;
    vector<char> v;
    while(true){
        cout<<"enter a letter: ";
        cin>>ch;
        if(ch=='!')
            break;
        v.push_back(ch);
    }
    cout<<"\nGreat! you entered: ";
    for(int i=0;i<v.size();i++){
        cout<<v[i];
    }
    cout<<"\nThe first character is : "<<v[0]<<endl;
    cout<<"The last character is : "<<v[v.size()-1]<<endl;
    return 0;
}