assignment of Chapter 4.docx
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assignment of Chapter 4.docx
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assignmentofChapter4
4.17
#include
usingnamespacestd;
intnumber;
intlargest;
intmain()
{
intcounter=1;
cout<<"Enter10numbers:
"< while(counter<=10) { cin>>number; if(number>largest) largest=number; else largest=largest; counter++; } cout<<"Thelargestnumberis: "< } 4.24 a). #include usingnamespacestd; intx; inty; intmain() {cout<<"pleaseenterx: "< cin>>x; cout<<"pleaseentery: "< cin>>y; if(x! =5,y! =8) cout<<"@@@@"< else { cout<<"####"< cout<<"$$$$"< cout<<"&&&&"< } } b). #include usingnamespacestd; intx; inty; intmain() {cout<<"pleaseenterx: "< cin>>x; cout<<"pleaseentery: "< cin>>y; if(x==5,y==8) cout<<"@@@@"< else { cout<<"####"< cout<<"$$$$"< cout<<"&&&&"< } } c). #include usingnamespacestd; intx; inty; intmain() {cout<<"pleaseenterx: "< cin>>x; cout<<"pleaseentery: "< cin>>y; if(x==5,y==8) { cout<<"@@@@"< cout<<"&&&&"< } else { cout<<"####"< cout<<"$$$$"< cout<<"&&&&"< } } d). #include usingnamespacestd; intx; inty; intmain() {cout<<"pleaseenterx: "< cin>>x; cout<<"pleaseentery: "< cin>>y; if(x! =5,y! =7) { cout<<"@@@@"< cout<<"&&&&"< } else { cout<<"####"< cout<<"$$$$"< cout<<"&&&&"< } } 4.25 #include usingnamespacestd; intsize; intmain() { cout<<"Pleseenterthesizeofthesquare: "< cin>>size; if(size>1&&size<20) { for(inti=1;i<=size;i++) cout<<"*"; cout< for(intn=1;n<=size-2;n++) { cout<<"*"; { for(intj=1;j<=size-2;j++) cout<<""; } cout<<"*"< } for(intk=1;k<=size;k++) cout<<"*"; cout< } else cout<<"Pleseenterthecorrectsize! "< } 4.26 #include usingnamespacestd; intk; intmain() { cout<<"Pleaseenterafive-digitintegers: "< cin>>k; if(k>10000&&k<99999) { inta=k/10000; intb=(k/1000)%10; intc=(k/100)%10; intd=(k/10)%10; inte=k%10; if(a==e&&b==d) cout<<"Thefive-digitintegersisapalindrome."< else cout<<"Thefive-digitintegersisnotapalindrome."< } else cout<<"Pleseenterthecorrectfive-digitintegers! "< } 4.27 #include #include usingnamespacestd; inta; intsum; doublen; intmain() { cout<<"Pleseenteranintegerwhichconsistsof1and0: "< cin>>a; sum=a%10; n=1; for(n;a/pow(10.0,n)>1;n++) { sum=sum+((a/10)%10)*pow(2.0,n); } cout<<"Theresultis: \n"< } 4.32 #include usingnamespacestd; doublea; doubleb; doublec; intmain() { cout<<"Pleseenterthesizeofthethreesides: "< cin>>a>>b>>c; if(a>0&&b>0&&c>0) { if(a-b>=0) { if(a+b>c&&a-b cout<<"Thethreesidescanbethesidesofarighttriangle."< else cout<<"Thethreesidescan'tbethesidesofarighttriangle."< } else { if(a+b>c&&b-a cout<<"Thethreesidescanbethesidesofarighttriangle."< else cout<<"Thethreesidescan'tbethesidesofarighttriangle."< } } else cout<<"Plesecheckwhetherthesizesyouenteredareright."< } 4.34 #include usingnamespacestd; intcode; intmain() { cout<<"Pleseenterafour-numbercode: "< cin>>code; if(code<=9999&&code>=1000) { inta=code%10; intb=(code/10)%10; intc=(code/100)%10; intd=(code/1000)%10; a=(a+7)%10; b=(b+7)%10; c=(c+7)%10; d=(d+7)%10; cout<<"Theresultis: \n"< } else cout<<"Pleaseenteracorrectfour-numbercode! "< } 4.35 a) #include usingnamespacestd; intn; ints; intmain() { cout<<"Pleaseenteraninteger: "< cin>>n; s=n; while(n>=2) { s=s*(n-1); n--; } cout<<"Theresultis: \n"< } b) #include usingnamespacestd; doublefactorial(doublei,doublek) { if(i==1) k=i; else { k=i; while(i>=2) { k=k*(i-1); i--; } } returnk; } intmain() { doublea; doublei=1; doublek=1; doubles=1; cout<<"Pleaseentertheaccuracyofe: "< cin>>a; while(i<=a) { s=s+1/factorial(i,k); i++; } cout<<"Theresultis: \n"< } c) #include #include usingnamespacestd; doublefactorial(doublei,doublek) { if(i==1) k=i; else { k=i; while(i>=2) { k=k*(i-1); i--; } } returnk; } intmain() { doublea; doublei=1; doublek=1; doubles=1; doublex; cout<<"Pleaseenterx: "< cin>>x; cout<<"Pleaseentertheaccuracyofe: "< cin>>a; while(i<=a) { s=s+pow(x,i)/factorial(i,k); i++; } cout<<"Theresultis: \n"< }
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