count example

 int  main()  {
     int  A[ ]  =  {1,2,3,1,2,3,1,2,3,1,2,1,1,2,3};
     int  N  =  15;
     cout  <<  "Number  of  2's  :  "
             <<  count(A,  A  +  N,  2)  << endl;
 }