listing4.4.cpp Creating A Dynamic Array of Integers and Inserting Values Dynamically

//listing4.4.cpp
#include <iostream>
#include <vector>

using namespace std;

int main()
{
        vector<int> dynArray(3); //dynamic array of int

        dynArray[0]=365;
        dynArray[1]=-421;
        dynArray[2]=789;

        cout << "Number of integers in array: " << dynArray.size() << endl;

        cout << "Enter another element to insert" << endl;
        int newValue=0;
        cin >> newValue;
        dynArray.push_back(newValue);

        cout << "Number of integers in array: " << dynArray.size() << endl;
        cout << "Last element in array: ";
        cout << dynArray[dynArray.size()-1] << endl;
        return 0;
}

output:

 

Number of integers in array: 3
Enter another element to insert
2025
Number of integers in array: 4
Last element in array: 2025

Process returned 0 (0x0)   execution time : 19.301 s
Press any key to continue.