// sample program for std::vector,  2008.5.24 T. Kondo
#include <vector>
#include <iostream>

int main()
{
        using namespace std;

        vector<int> array;  // dynamic array of integer type
        vector<double> array1;  // dynamic array of double type variables
        double x;
//
        for(int i = 0; i < 8 ++i ) {
           x=i*0.5;
           array.push_back( i );
           array1.push_back( x );
        }
        cout << "size=" << array.size() << endl;
        for(int i = 0; i < array.size(); ++i )
          cout << array[i] << ", " << array1[i] << endl;
//
        array.clear();
        array1.clear();
        cout <<" array, array1 are clear()ed"<< endl;
        for(int i = 0; i < 5; ++i ) {
           x=i*5.5 + 2.34 ;
           array.push_back( i*100 );
           array1.push_back( x );
        }
        cout << "size=" << array.size() << endl;
        for(int i = 0; i < array.size(); ++i )
          cout << array[i] << ", " << array1[i] << endl;

        return 0;
}


./a.exe
size=15
0, 0
1, 0.5
2, 1
3, 1.5
4, 2
5, 2.5
6, 3
7, 3.5
8, 4
9, 4.5
10, 5
11, 5.5
12, 6
13, 6.5
14, 7
 array, array1 are clear()ed
size=5
0, 2.34
100, 7.84
200, 13.34
300, 18.84
400, 24.34