random number generation in quantitative finance : Algorithm « vector « C++ Tutorial

1. C++ Tutorial
2. vector
3. Algorithm

#include <vector> 
#include <iostream> 
#include <algorithm> 
#include <time.h> 

using namespace std; 

void print(const vector<int>& v) 
{ 

  vector<int>::const_iterator i; 

  cout << "["; 

  for (i=v.begin(); i!=v.end(); i++) cout << *i << ", "; 
  cout << "]" << endl; 
} 

int main() 
{ 
  srand((unsigned) time (NULL)); 

  int Size = 5; 
  vector<int> v1, v2; 
  int i; 
  for (i=0; i<= Size; i++) 
    v1.push_back(rand()); 
  for (i=0; i< Size; i++) 
    v2.push_back(rand()); 

  cout << "Two random lists" << endl; 
  print(v1); 
  print(v2); 

  sort(v1.begin(), v1.end()); 
  sort(v2.begin(), v2.end()); 

  cout << "Two sorted lists" << endl; 
  print(v1); 
  print(v2); 

  // Merge the two lists to a third list 
  vector<int> v3(v1.size()+v2.size()); 
  cout << endl << "Merge the two lists" << endl; 
  merge(v1.begin(), v1.end(), v2.begin(), v2.end(), v3.begin()); 
  print(v3); 

  return 0; 
}