alg3.cpp

alg3.cpp

#include ‹iostream.h›

#include ‹stl.h›

int main() {

 vector‹int› i;

 i.push_back(1);

 i.push_back(4);

 i.push_back(2);

 i.push_back(8);

 i.push_back(2);

 i.push_back(2);

 int n = 0; // Must be initialized, as count increments n.

 count(i.begin(), i.end(), 2, n);

 cout ‹‹ "Count of 2s = " ‹‹ n ‹‹ endl;

 return 0;

}