// This program demonstrates the vector pop_back member function.
#include <iostream>
#include <vector>
using namespace std;

int main()
{
   vector<int> values;

   // Store values in the vector.
   values.push_back(1);
   values.push_back(2);
   values.push_back(3);
   cout << "The size of values is " << values.size() << endl;
   
   // Remove a value from the vector.
   cout << "Popping a value from the vector...\n";
   values.pop_back();
   cout << "The size of values is now " << values.size() << endl;
   
   // Now remove another value from the vector.
   cout << "Popping a value from the vector...\n";
   values.pop_back();
   cout << "The size of values is now " << values.size() << endl;
   
   // Remove the last value from the vector.
   cout << "Popping a value from the vector...\n";
   values.pop_back();
   cout << "The size of values is now " << values.size() << endl;
   return 0;
}