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DOS/V Power Report 1997 May
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PROGRAM
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CBTRIAL
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DATA.Z
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MULTIMAP.CPP
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C/C++ Source or Header
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1997-02-14
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2KB
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70 lines
#include <string>
#include <map>
using namespace std;
typedef multimap<int, string, less<int> > months_type;
//
// Print out a pair.
//
template <class First, class Second>
ostream& operator<< (ostream& out, const pair<First,Second>& p)
{
out << p.second << " has " << p.first << " days";
return out;
}
//
// Print out a multimap.
//
ostream& operator<< (ostream& out, months_type l)
{
copy(l.begin(),l.end(), ostream_iterator
<months_type::value_type>(cout,"\n"));
return out;
}
int main ()
{
//
// Create a multimap of months and the number of days in the month.
//
months_type months;
typedef months_type::value_type value_type;
//
// Put the months in the multimap.
//
months.insert(value_type(31, string("January")));
months.insert(value_type(28, string("Febuary")));
months.insert(value_type(31, string("March")));
months.insert(value_type(30, string("April")));
months.insert(value_type(31, string("May")));
months.insert(value_type(30, string("June")));
months.insert(value_type(31, string("July")));
months.insert(value_type(31, string("August")));
months.insert(value_type(30, string("September")));
months.insert(value_type(31, string("October")));
months.insert(value_type(30, string("November")));
months.insert(value_type(31, string("December")));
//
// Print out the months.
//
cout << "All months of the year" << endl << months << endl;
//
// Find the Months with 30 days.
//
pair<months_type::iterator,months_type::iterator> p =
months.equal_range(30);
//
// Print out the 30 day months.
//
cout << endl << "Months with 30 days" << endl;
copy(p.first,p.second,ostream_iterator<months_type::value_type>(cout,"\n"));
return 0;
}