// the two senior class homerooms at littleville high school// are having a fundraising drive for the prom. each time a student// solicits a contribution, a record is created with the// student's name and the value. two files have been created for// homeroom a and homeroom b. each file is sorted in contribution// value order from highest to lowest. this program merges the two files. start declarations string roomaname num roomavalue string roombname num roombvalue string bothfilesdone = "n" num high_value = inputfile roomafile inputfile roombfile inputfile mergedfile getready() while bothfilesdone = "n" detailloop() endwhile alldone()stopgetready() open roomafile "roomafile. dat" open roombfile "roombfile. dat" open mergedfile "mergedfile. dat" reada() readb() checkboth()returnreada() input roomaname, roomavalue from roomafile if eof then roomavalue = high_value endifreturnreadb() input roombname, roombvalue from roombfile if eof then roombvalue = high_value endifreturncheckboth() if roomavalue = high_value and roombvalue = high_value then bothfilesdone = "y" endifreturndetailloop() if roomavalue > roombvalue then output roombname, roombvalue to mergedfile reada() else output roomaname, roomavalue to mergedfile readb() endifreturnalldone() close roomafile close roombfile close mergefilereturn