C++ Programming Code Examples

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C++ Program to Implement Vector in STL

C++ Program to Implement Vector in STL

    #include <iostream>

    #include <vector>

    #include <string>

    #include <cstdlib>

    using namespace std;

    int main()

    {

        vector<int> ss;

        vector<int>::iterator it;

        int choice, item;

        while (1)

        {

            cout<<"\n---------------------"<<endl;

            cout<<"Vector Implementation in Stl"<<endl;

            cout<<"\n---------------------"<<endl;

            cout<<"1.Insert Element into the Vector"<<endl;

            cout<<"2.Delete Last Element of the Vector"<<endl;

            cout<<"3.Size of the Vector"<<endl;

            cout<<"4.Display by Index"<<endl;

            cout<<"5.Dislplay by Iterator"<<endl;

            cout<<"6.Clear the Vector"<<endl;

            cout<<"7.Exit"<<endl;

            cout<<"Enter your Choice: ";

            cin>>choice;

            switch(choice)

            {

            case 1:

                cout<<"Enter value to be inserted: ";

                cin>>item;

                ss.push_back(item);

                break;

            case 2:

                cout<<"Delete Last Element Inserted:"<<endl;

                ss.pop_back();

                break;

            case 3:

                cout<<"Size of Vector: ";

                cout<<ss.size()<<endl;

                break;

            case 4:

                cout<<"Displaying Vector by Index: ";

                for (int i = 0; i < ss.size(); i++)

                {

                    cout<<ss[i]<<" ";

                }

                cout<<endl;

                break;

            case 5:

                cout<<"Displaying Vector by Iterator: ";

                for (it = ss.begin(); it != ss.end(); it++)

                {

                    cout<<*it<<" ";

                }

                cout<<endl;

                break;

            case 6:

                ss.clear();

                cout<<"Vector Cleared"<<endl;

                break;

            case 7:

                exit(1);

                break;

            default:

                cout<<"Wrong Choice"<<endl;

            }

        }

        return 0;

    }