C++Primer源代码Word格式.docx

C++Primer源代码Word格式.docx

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feet\n"

return0;

}

3.WriteaC++programthatusesthreeuser-definedfunctions（countingmain（）asone）andproducesthefollowingoutput:

Threeblindmice

Seehowtheyrun

Onefunction,calledtwotimes,shouldproducethefirsttwolines,andtheremainingfunction,alsocalledtwice,shouldproducetheremainingoutput.

//pe2-3.cpp

voidmice（）;

voidrun（）;

intmain（）

mice（）;

run（）;

voidmice（）

Threeblindmice\n"

voidrun（）

Seehowtheyrun\n"

4.Writeaprogramthathasmain（）callauser-definedfunctionthattakesaCelsiustemperaturevalueasanargumentandthenreturnstheequivalentFahrenheit

StephenPrata1July22,1999SampleSolutionsforProgrammingExercisesinC++PrimerPlus,3rdEdition

value.TheprogramshouldrequesttheCelsiusvalueasinputfromtheuseranddisplaytheresult,asshowninthefollowingcode:

PleaseenteraCelsiusvalue:

20

20degreesCelsiusis68degreesFahrenheit.

Forreference,hereistheformulaformakingtheconversion:

Fahrenheit=1.8×

Celsius+32.0

//pe2-4.cpp

doubleC_to_F（double）;

EnteratemperatureinCelsius:

doubleC;

C;

doubleF;

F=C_to_F（C）;

C<

degreesCelsius="

F<

degreesFahrenheit\n"

doubleC_to_F（doubletemp）

return1.8*temp+32.0;

Chapter3

1.Writeashortprogramthatasksforyourheightinintegerinchesandthenconvertsyourheighttofeetandinches.Havetheprogramusetheunderlinecharactertoindicatewheretotypetheresponse.Alsouseaconsttype.

//pe3-1.cpp

constintInch_Per_Foot=12;

//Note:

someenvironmentsdon'

tsupportthebackspacecharacter

Pleaseenteryourheightininches:

___/b/b/b"

intht_inch;

ht_inch;

intht_feet=ht_inch/Inch_Per_Foot;

intrm_inch=ht_inch%Inch_Per_Foot;

Yourheightis"

<

ht_feet<

feet,"

rm_inch<

inch（es）.\n"

3.Writeaprogramthataskshowmanymilesyouhavedrivenandhowmanygallonsofgasolineyouusedandthenreportsthemilespergallonyourcargot.Or,

StephenPrata2July22,1999SampleSolutionsforProgrammingExercisesinC++PrimerPlus,3rdEdition

ifyouprefer,theprogramcanrequestdistanceinkilometersandpetrolinlitersandthenreporttheresultEuropeanstyle,inlitersper100kilometers.（Or,perhaps,youcanuselitresper100kilometres.）

//pe3-3.cpp

Howmanymileshaveyoudrivenyourcar?

floatmiles;

miles;

Howmanygallonsofgasolinedidthecaruse?

floatgallons;

gallons;

Yourcargot"

miles/gallons;

milespergallon.\n"

Chapter4

2.TheCandyBarstructurecontainsthreemembers.Thefirstmemberholdsthebrandnameofacandybar.Thesecondmemberholdstheweight（whichmayhaveafractionalpart）ofthecandybar,andthethirdmemberholdsthenumberofcalories（anintegervalue）inthecandybar.WriteaprogramthatdeclaressuchastructureandcreatesaCandyBarvariablecalledsnack,initializingitsmembersto"

MochaMunch"

2.3,and350respectively.Theinitializationshouldbepartofthedeclarationforsnack.Finally,theprogramshoulddisplaythecontentsofthesnackvariable.

//pe4-2.cpp//acandybarstructCandyBar{charbrand[40];

doubleweight;

intcalories;

};

#include<

usingnamespacestd;

//introducesnamespacestd

CandyBarsnack={"

2.3,350};

Brandname:

snack.brand<

endl;

Weight:

snack.weight<

Calories:

snack.calories<

StephenPrata3July22,1999SampleSolutionsforProgrammingExercisesinC++PrimerPlus,3rdEdition

4.WilliamWingaterunsapizza-analysisservice.Foreachpizza,heneedstorecordthefollowinginformation:

[lb]thenameofthepizzacompany,whichmayconsistofmorethanoneword

[lb]thediameterofpizza

[lb]theweightofthepizza

Deviseastructurethatcanholdthisinformationandwriteaprogramusingastructurevariableofthattype.Theprogramshouldasktheusertoentereachoftheitemsofinformationlistedabove,andthentheprogramshoulddisplaythatinformation.Usecin（oritsmethods）andcout.

//pe4-4.ccp

constintSlen=70;

structpizza{

charname[Slen];

floatdiameter;

floatweight;

};

pizzapie;

Whatisthenameofthepizzacompany?

cin.getline（pie.name,Slen）;

Whatisthediameterofthepizzaininches?

pie.diameter;

Howmuchdoesthepizzaweighinounces?

pie.weight;

Company:

pie.name<

\n"

Diameter:

pie.diameter<

inches\n"

pie.weight<

ounces\n"

Chapter5

2.Writeaprogramthatasksyoutotypeinnumbers.Aftereachentry,thenumberreportsthecumulativesumoftheentriestodate.Theprogramterminateswhenyouenterazero.

//pe5-2.cpp

doublesum=0.0;

doublein;

Enteranumber（0toterminate）:

in;

while（in!

=0）{

sum+=in;

Runningtotal="

sum<

StephenPrata4July22,1999SampleSolutionsforProgrammingExercisesinC++PrimerPlus,3rdEdition

Enternextnumber（0toterminate）:

Bye!

4.YousellC++ForFools.Writeaprogramthathasyouenterayear'

sworthofmonthlysales（intermsofnumberofbooks,notofmoney）.Theprogramshouldusealooptopromptyoubymonth,usinganarrayofchar*initializedtothemonthstringsandstoringtheinputdatainanarrayofint.Then,theprogramshouldfindthesumofthearraycontentsandreportthetotalsalesfortheyear.

//pe5-4.cpp//booksales#include<

constintMONTHS=12;

constchar*months[MONTHS]={"

January"

"

February"

March"

April"

"

May"

June"

July"

August"

September"

October"

November"

December"

intsales[MONTHS];

intmonth;

Enterthemonthlysalesfor\"

C++forFools\"

:

for（month=0;

month<

MONTHS;

month++）

Salesfor"

months[month]<

sales[month];

doubletotal=0.0;

total+=sales[month];

Totalsales:

total<

6.Designastructurecalledcarthatholdsthefollowinginformationaboutanautomobile:

itsmake（asastringinacharacterarray）andtheyearitwasbuilt（asaninteger）.Writeaprogramthataskstheuserhowmanycarstocatalog.Theprogramshouldthenusenewtocreateadynamicarrayofthatmanycarstructures.Next,itshouldprompttheusertoinputthemakeandyearinformationforeachstructure.Notethatthisrequiressomecare,foritalternatesreadingstringswithnumericdata.（SeeChapter4,"

DerivedTypes,"

formoreinformation.）Finally,itshoulddisplaythecontentsofeachstructure.Asamplerunshouldlooksomethinglikethefollowing:

Howmanycarsdoyouwishtocatalog?

2

Car#1:

Pleaseenterthemake:

HudsonHornet

Pleaseentertheyearmade:

1952

Car#2:

StephenPrata5July22,1999SampleSolutionsforProgrammingExercisesinC++PrimerPlus,3rdEdition

Kaiser

1951

Hereisyourcollection:

1952HudsonHornet

1951Kaiser

//pe5-6.cpp

structcar{charname[20];

intyear;

intn;

n;

while（cin.get（）!

='

\n'

）//getridofrestofline

car*pc=newcar[n];

inti;

for（i=0;

i<

i++）

Car#"

（i+1）<

cin.getline（pc[i].name,20）;

pc[i].year;

pc[i].year<

pc[i].name<

delete[]pc;

7.Writeaprogramusingnestedloopsthataskstheusertoenteravalueforthenumberofrowstodisplayed.Itthendisplaysthatmanyrowsofasterisks,withoneasteriskinthefirstrow,twointhesecondrow,andsoon.Foreachrow,theasterisksareprecededbythenumberofperiodsneededtomakealltherowsdisplayatotalnumberofcharactersequaltothenumberofrows.Asamplerunwouldlooklikethis:

Enternumberofrows:

5

....*

...**

..***

.****

*****

//pe5-7.cpp

//nestedloops

introws;

introw;

intcol;

StephenPrata6July22,1999SampleSolutionsforProgr