#include <iostream.h>
#include <string.h>
#include <list.h>
#include <algorith.h>

class IsAToothbrush
{
　public:
　　IsAToothbrush(string& InToothbrushCode) :ToothbrushCode(InToothbrushCode) {}
　　bool operator() (string& SalesRecord)
　　{
　　　return SalesRecord.substr(0,4)==ToothbrushCode;
　　}
　private:
　　string ToothbrushCode;
};

int main (void)
{
　list<string> SalesRecords;

　SalesRecords.push_back("0001 Soap");
　SalesRecords.push_back("0002 Shampoo");
　SalesRecords.push_back("0003 Toothbrush");
　SalesRecords.push_back("0004 Toothpaste");
　SalesRecords.push_back("0003 Toothbrush");

　string VariableToothbrushCode("0003");

　int NumberOfToothbrushes(0);
　count_if (SalesRecords.begin(), SalesRecords.end(),IsAToothbrush(VariableToothbrushCode),NumberOfToothbrushes);
　cout<< "There were "
　<< NumberOfToothbrushes
　<< " toothbrushes matching code "
　<< VariableToothbrushCode
　<< " sold"
　<< endl;
}
[em10]