c语言编程全部练习.docx

c语言编程全部练习.docx

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c语言编程全部练习

命名文件和名相同压缩包文件无所谓3414_E01.zip

在下周二上课前交

Exercise1:

ProgrammingEnvironmentandBasicInput/Output

1.Writeaprogramthatprints“Thisismyfirstprogram!

”onthescreen.

（a）Savethisprogramontoyourowndiskwiththenameofe2-1a;

（b）RunthisprogramwithoutopeningTurboC;

（c）Modifythisprogramtoprint“Thisismysecondprogram!

”,thensaveitase2-1b.Pleasedonotoverwritethefirstprogram.

2.Writeaprogramthatprintsthenumber1to4onthesameline.Writetheprogramusingthefollowingmethods:

（a）Usingfour“printf”statements.

（b）Usingone“printf”statementwithnoconversionspecifier（i.e.no‘%’）.

（c）Usingone“printf”statementwithfourconversionspecifiers

3．（a）Writeaprogramthatcalculatesanddisplaysthenumberofminutesin15days.

（b）Writeaprogramthatcalculatesanddisplayshowmanyhours180minutesequalto.

（c）（Optional）Howabout174minutes?

Exercise2:

DataTypesandArithmeticOperations

1.Youpurchasealaptopcomputerfor$889.Thesalestaxrateis6percent.WriteandexecuteaCprogramthatcalculatesanddisplaysthetotalpurchaseprice（netprice+salestax）.

2．Writeaprogramthatreadsintheradiusofacircleandprintsthecircle’sdiameter,circumferenceandarea.Usethevalue3.14159for“”.

3．Writeaprogramthatreadsintwonumbers:

anaccountbalanceandanannualinterestrateexpressedasapercentage.Yourprogramshouldthendisplaythenewbalanceafterayear.Therearenodepositsorwithdraws–justtheinterestpayment.Yourprogramshouldbeabletoreproducethefollowingsamplerun:

Interestcalculationprogram.

Startingbalance?

6000

Annualinterestratepercentage?

4.25

Balanceafteroneyear:

6255.00

Exercise3:

Selectionstructure

1．WriteaCprogramthatacceptsastudent’snumericalgrade,convertsthenumericalgradetoPassed（gradeisbetween60-100）,Failed（gradeisbetween0-59）,orError（gradeislessthan0orgreaterthan100）.

2．Writeaprogramthataskstheusertoenteranintegernumber,thentellstheuserwhetheritisanoddorevennumber.

3．Writeaprogramthatreadsinthreeintegersandthendeterminesandprintsthelargestinthegroup.

Exercise4:

‘switch’statementandsimple“while”repetitionstatement

1.Writeaprogramthatreadsthreeintegersanabbreviateddate（forexample:

261294）andthatwillprintthedateinfull;forexample:

26thDecember1994.Thedayshouldbefollowedbyanappropriatesuffix,‘st’,‘nd’,‘rd’or‘th’.Useatleastoneswitchstatement.

2．WriteaCprogramthatusesawhilelooptocalculateandprintthesumoftheevenintegersfrom2to30.

3.Alargechemicalcompanypaysitssalesstaffonacommissionbasis.Theyreceive£200perweekplus9%oftheirgrosssalesforthatweek.Forexample,someonewhosells£5000ofchemicalsinoneweekwillearn£200plus9%of£5000,atotalof£650.DevelopaCprogramthatwillinputeachsalesperson’ssalesforthepreviousweek,andprintouttheirsalary.Processoneperson’sfiguresatatime.

Entersalesinpounds（-1toend）:

5000.00

Salaryis:

650.00

Entersalesinpounds（-1toend）:

00.00

Salaryis:

200.00

Entersalesinpounds（-1toend）:

1088.89

Salaryis:

298.00

Entersalesinpounds（-1toend）:

-1

Optional：

两重的while

4.Amailordercompanysellsfivedifferentproductswhoseretailpricesareshowninthefollowingtable:

ProductNumberRetailPrice（inpounds）

12.98

24.50

39.98

44.49

56.87

WriteaCprogramthatreadsinaseriesofpairsofnumbersasfollows:

（1）.Productnumber

（2）.Quantitysoldforoneday

Yourprogramshoulduseaswitchstatementtohelpdeterminetheretailpriceforeachproduct,andshoulduseasentinel-controlledlooptocalculatethetotalretailvalueofallproductssoldinagivenweek（7days）.

Exercise5:

‘for’and‘do…while”repetitionstatements

1.Writeaprogramwhichusesado/whilelooptoprintoutthefirst10powersof2otherthan0（ie.itprintsoutthevaluesof21,22,...,210）.Useaforlooptodothesame.

2.Theconstantcanbecalculatedbytheinfiniteseries:

=4-4/3+4/5-4/7+4/9-4/11+....

WriteaCprogramthatusesado/whilelooptocalculateusingtheseries.Theprogramshouldasktheuserhowmanytermsintheseriesshouldbeused.Thusiftheuserenters‘3’,thentheprogramshouldcalculateasbeing4-4/3+4/5.

Nestedrepetition

3.Writeaprogramthatprintsthefollowingdiamondshape.Youmayuseprintfstatementsthatprinteitherasingleasterisk（*）orasingleblank.Maximizeyouruseofrepetition（withnestedforstatements）andminimizethenumberofprintfstatements.

*

***

*****

*******

*********

*******

*****

***

*

4.Writeaprogramtoprintatableasfollows:

1*1=1

2*1=22*2=4

3*1=33*2=63*3=9

….

9*1=99*2=189*3=279*4=369*5=459*6=549*7=639*8=729*9=81

Exercise6:

SimpleFunctions

1.WriteaCprogramthatreadsseveralnumbersandusesthefunctionround_to_nearesttoroundeachofthesenumberstothenearestinteger.Theprogramshouldprintboththeoriginalnumberandtheroundednumber.

2.Writeaprogramthatreadsthreepairsofnumbersandaddsthelargerofthefirstpair,thelargerofthesecondpairandthelargerofthethirdpair.Useafunctiontoreturnthelargerofeachpair.

3.Acarparkchargesa£2.00minimumfeetoparkforupto3hours,andanadditional£0.50foreachhourorparthourinexcessofthreehours.Themaximumchargeforanygiven24-hourperiodis£10.00.Assumethatnocarparksformorethan24hoursatatime.

WriteaCprogramthatwillcalculateandprinttheparkingchargesforeachof3customerswhoparkedtheircarinthecarparkyesterday.Theprogramshouldacceptasinputthenumberofhoursthateachcustomerhasparked,andoutputtheresultsinaneattabularform,alongwiththetotalreceiptsfromthethreecustomers:

CarHoursCharge

11.52.00

24.02.50

324.010.00

TOTAL29.514.50

Theprogramshouldusethefunctioncalculate_chargestodeterminethechargeforeachcustomer.

Exercise7:

MoreFunctions

1.Writeaprogramthatusessentinel-controlledrepetitiontotakeanintegerasinput,andpassesittoafunctionevenwhichusesthemodulusoperatortodetermineiftheintegeriseven.Thefunctionevenshouldreturn1iftheintegeriseven,and0ifitisnot.

Theprogramshouldtakethevaluereturnedbythefunctionevenanduseittoprintoutamessageannouncingwhetherornottheintegerwaseven.

2.WriteaCprogramthatusesthefunctionintegerPower1（base,exponent）toreturnthevalueof:

baseexponent

sothat,forexample,integerPower1（3,4）givesthevalue3*3*3*3.Assumethatexponentisapositive,non-zerointeger,andbaseisaninteger.Thefunctionshoulduseaforloop,andmakenocallstoanymathlibraryfunctions.

3.WriteaCprogramthatusestherecursivefunctionintegerPower2（base,exponent）toreturnthevalueof:

baseexponent

sothat,forexample,integerPower2（3,4）givesthevalue3*3*3*3.Assumethatexponentisapositive,non-zerointeger,andbaseisaninteger.Thefunctionshouldmakenocallstoanymathlibraryfunctions.

（Hint:

therecursivestepwillusetherelationship:

baseexponent=base.baseexponent-1

andthebasecasewillbewhenexponentis1since:

base1=base.）

Exercise8:

Arrays

1.Writeaprogramthatreadstennumberssuppliedbytheuserintoasinglesubscriptedarray,andthenprintsouttheaverageofthem.

2.Writeaprogramthatreadstennumberssuppliedbytheuserintoa2by5array,andthenprintsoutthemaximumandminimumvaluesheldin:

（a）eachrow（2rows）

（b）thewholearray

3．Useasingle-subscriptedarraytosolvethefollowingproblem.Readin20numbers,eachofwhichisbetween10and100,inclusive.Aseachnumberisread,printitonlyifitisnotaduplicateofanumberalreadyread.Prepareforthe“worstcase”inwhichall20numbersaredifferent.Usethesmallestpossiblearraytosolvethisproblem.

Exercise9:

MoreArrays

1.Writeaprogramthatenters5namesoftownsandtheirrespectivedistance（aninteger）fromLondoninmiles.Theprogramwillprintofthenamesofthetownsthatarelessthan100milesfromLondon.Usearraysandcharacterstringstoimplementyourprogram.

2.Writeaprogramthatpromptstheusertotypeinfourcharacterstrings,placestheseinanarrayofstrings,andthenprintsout:

（e.g.IamPeterPan）

（i）Thefourstringsinreverseorder.（e.g.PanPeteramI）

（ii）Thefourstringsintheoriginalorder,butwitheachstringbackwards.（e.g.ImaretePnaP）

（iii）Thefourstringsinreverseorderwitheachstringbackwards.（e.g.naPretePmaI）

Exercise10:

Pointers

1.Writeaprogramthatreads5integersintoanarray,andthenusesfourdifferentmethodsofaccessingthemembersofanarraytoprintthemoutinreverseorder.

2.Writeaprogramthatreads8floatsintoanarrayandthenprintsoutthesecond,fourth,sixthandeighthmembersofthearray,andthesumofthefirst,third,fifthandseventh,usingpointerstoaccessthemembersofthearray.

3.WriteaprogramthatuseaSINGLEFUNCTION（用一个函数）tofindandreturnsimultaneouslyboththelowestandhighestvaluesinanarrayoftypeint.Supposethesizeofthearrayis6.

Exercise11:

Files

1.Writeaprogramthatentersthenameandtheannualsalaryof5employeesfromthekeyboard,calculatesthemonthlysalaryofeachemployeeassumingthattaxisdeductedataflatrateof20%.Theprogramprintsthename,theannualsalaryandthemonthlypayment（net）ofeachemployeeinafile.Theprogramaddsanemployee’snumbertoeachemployeebeforeprin