C__大学教程课后习题答案17

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1、SavitchInstructor’sResourceGuideProblemSolvingw/C++,7eChapter18Chapter18StandardTemplateLibrary1.SolutionstoandRemarksonSelectedProgrammingProjects1-5.Nosolutionsprovided.6.//****************************************************************////Ch18Proj6.cpp////Thisprogramrepresentsadocume

2、ntandqueryasasetofkeywords.//Itusesthebinarycosinemetrictothencomputethesimilarity//betweenthequeryanddocumentandoutputsthesimilarityasa//valuebetween0and1.////ThisprogramusesthegenericSTLsetclasses.//****************************************************************#include#incl

3、ude#include#include#include#include#include#include#includeusingnamespacestd;//FunctionprototypesvoidreadFileKeywords(set&setDocument,constcharfilename[]);voidinputKeywords(set&setKeywords);//************

4、************//InputKeywords://Inputsstringsfromthekeyboard//andstoresthemintothesetuntil//enterispressed.//************************voidinputKeywords(set&setKeywords){strings;cout<<"Enterkeywords,oneperline.Enterablanklinewhenfinished."13Copyright©2008PearsonEducation,Inc.Publishi

5、ngasPearsonAddison-WesleySavitchInstructor’sResourceGuideProblemSolvingw/C++,7eChapter18<

6、***********************voidreadFileKeywords(set&setDocument,constcharfilename[]){ifstreamin_stream;strings;//Openthefilein_stream.open(filename);if(in_stream.fail()){cout<<"Inputfileopeningfailed."<

7、){//Inputword,ideallyweshouldfilterout//punctuationandothernon-lettersbutwillskipnow//forpurposesofthisassignmentin_stream>>s;setDocument.insert(s);}in_stream.close();}//======================//mainfunction//======================intmain(){//Variabledeclarationsset