How to Learn Object Oriented Programming (OOP) in C++: Lab Work 2: Strange Number

Lab Work 2: Strange Number

Write a C++ Program to find all the strange number between 1 and 10,000. Use C++ Abstraction.

Hint:

We define "strange" numbers in the following way:

All strange numbers are prime.
Every single digit prime number is strange.
A number with two or more digits is strange if, and only if, the two numbers obtained from it, by removing either its first or its last digit, are also strange.

Sample C program: http://www.c-programming-blog.com/2013/07/write-program-to-find-maximum-strange.html

16 comments:

Md Raihan MollaOctober 24, 2019 at 1:43 PM
Md Raihan Molla
ID : 201910061 CSE 60th

#include
using namespace std;
class strange
{
public:
int n,i,r,p,j,k;

void checked()
{
cout<<"All the strange number between 1 to 10,000 is given below :"<<endl;

for(i=1;i<=10000;i++)
{
p=1;
r=i;

for(k=2;k<=r/2;k++)
{
if (r%k==0)
{
p=0;
break;
}
}

if (p==0)
continue;

n=i;

for(j=0;n!=0;j++)
{

r=n%10;

if(r==0)
{
p=0;
break;
}

for(k=2;k<=r/2;k++)
{

if (r%k==0)
{
p=0;
break;
}

}

if(p==1)
n=n/10;

else
break;

}

if(p==1)
cout<<i<<endl;

}
cout<<endl<<"The End "<<endl;
}

};

int main()
{
strange a;
a.checked();
}
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Replies
Md.Alamin HosenOctober 24, 2019 at 2:33 PM
Md.Alamin Hosen
Id.201910261
Batch.60th
//Write a C++ Program to find all the strange number between 1 and 10,000. Use C++ Abstraction.
#include
using namespace std;
class B
{
public:
int n,i,x,y,j,k;

void checked()
{

for(i=1; i<=10000; i++)
{
y=1;
x=i;

for(k=2; k<=x/2; k++)
{
if (x%k==0)
{
y=0;
break;
}
}

if (y==0)
continue;

n=i;

for(j=0; n!=0; j++)
{

x=n%10;

if(x==0)
{
y=0;
break;
}

for(k=2; k<=x/2; k++)
{

if (x%k==0)
{
y=0;
break;
}

}

if(y==1)
n=n/10;

else
break;

}

if(y==1)
cout<<i<<endl;

}
cout<<"end";
}

};

int main()
{
B a;
a.checked();
}

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Replies
Md. Aminul Islam AnikOctober 24, 2019 at 8:46 PM
Md. Aminul Islam Anik
ID:201910353 CSE 60th

#include
using namespace std;
class strange
{
public:
int n,i,r,p,j,k;

void checked()
{
cout<<"All the strange number between 1 to 10,000 is given below :"<<endl;

for(i=1;i<=10000;i++)
{
p=1;
r=i;

for(k=2;k<=r/2;k++)
{
if (r%k==0)
{
p=0;
break;
}
}

if (p==0)
continue;

n=i;

for(j=0;n!=0;j++)
{

r=n%10;

if(r==0)
{
p=0;
break;
}

for(k=2;k<=r/2;k++)
{

if (r%k==0)
{
p=0;
break;
}

}

if(p==1)
n=n/10;

else
break;

}

if(p==1)
cout<<i<<endl;

}
cout<<endl<<"The End "<<endl;
}

};

int main()
{
strange a;
a.checked();
}
ReplyDelete
Replies
RabiulOctober 25, 2019 at 5:15 AM
MD:Rabiul Auwal
id:201911082 CSE 60th

#include
using namespace std;
class strange
{
public:
int f,i,b,p,u,k;

void checked()
{
cout<<"All the strange number between 1 to 10,000 is given below :"<<endl;

for(i=1;i<=10000;i++)
{
p=1;
b=i;

for(k=2;k<=b/2;k++)
{
if (b%k==0)
{
p=0;
break;
}
}

if (p==0)
continue;

f=i;

for(u=0;f!=0;u++)
{

b=f%10;

if(b==0)
{
p=0;
break;
}

for(k=2;k<=b/2;k++)
{

if (b%k==0)
{
p=0;
break;
}

}

if(p==1)
f=f/10;

else
break;

}

if(p==1)
cout<<i<<endl;

}
cout<<endl<<"The End "<<endl;
}

};

int main()
{
strange a;
a.checked();
}

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Replies
Rabbi Islam FahimOctober 25, 2019 at 5:52 AM
//Md.Rabbi Islam Fahim
//Id:201910914
//Batch:60th
//(: :)

#include
#include
using namespace std;
class r
{
public:
int n,i,r,c,l,k;

int att()
{
cout<< "All The Strange Number 1 To 10000 : " <<endl;

for(l=1;l<=10000;l++)
{
c=1;
n=l;

for(i=2;i<=n/2;i++)
{
if (n%i==0)
{
c=0;
break;
}
}

if (c==0)

continue;

r=l;

for(k=0;r!=0;k++)
{

n=r%10;

if(n==0)
{
c=0;
break;
}

for(i=2;i<=n/2;i++)
{

if (n%i==0)
{
c=0;
break;
}

}

if(c==1)
r=r/10;

else
break;

}

if(c==1)
cout<<l<<endl;

}
cout<< "\nThank You So Much (:" <<endl;
getch();

}

};

int main()
{
r obj;
obj.att();
}

ReplyDelete
Replies
Robin AhmedOctober 25, 2019 at 9:23 AM
Robin Ahmed
Id:201910109

#include
using namespace std;
class strange
{
public:
int n,i,r,p,j,k;

void checked()
{

for(i=1;i<=10000;i++)
{
p=1;
r=i;

for(k=2;k<=r/2;k++)
{
if (r%k==0)
{
p=0;
break;
}
}

if (p==0)
continue;

n=i;

for(j=0;n!=0;j++)
{

r=n%10;

if(r==0)
{
p=0;
break;
}

for(k=2;k<=r/2;k++)
{

if (r%k==0)
{
p=0;
break;
}

}

if(p==1)
n=n/10;

else
break;

}

if(p==1)
cout<<i<<endl;

}
cout<<endl<<"End "<<endl;
}

};

int main()
{
strange a;
a.checked();
}
ReplyDelete
Replies
Eva AkterOctober 26, 2019 at 9:45 AM
//Eva
//Id:201910819
//Batch:60th
//(: 🙂
#include

using namespace std;
class r
{
public:
int n,i,r,c,l,k;

int att()
{

for(l=1;l<=10000;l++)
{
c=1;
n=l;

for(i=2;i<=n/2;i++)
{
if (n%i==0)
{
c=0;
break;
}
}

if (c==0)

continue;

r=l;

for(k=0;r!=0;k++)
{

n=r%10;

if(n==0)
{
c=0;
break;
}

for(i=2;i<=n/2;i++)
{

if (n%i==0)
{
c=0;
break;
}

}

if(c==1)
r=r/10;

else
break;

}

if(c==1)
cout<<l<<endl;

}

}

};

int main()
{
r obj;
obj.att();
}
ReplyDelete
Replies
top 10 best offersOctober 26, 2019 at 10:43 AM
This comment has been removed by the author.
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Replies
top 10 best offersOctober 26, 2019 at 10:45 AM

Name: Towhidul Islam
ID:201811105,Sec-C
Batch-57th
#include
using namespace std;
class strange
{
public:
int a,i,b,f,j,s;

void checked()
{
cout<<"All the strange number between 1 to 10,000 is given below :"<<endl;

for(i=1;i<=10000;i++)
{
f=1;
b=i;

for(s=2;s<=b/2;s++)
{
if (b%s==0)
{
f=0;
break;
}
}

if (f==0)
continue;

a=i;

for(j=0;a!=0;j++)
{

b=a%10;

if(b==0)
{
f=0;
break;
}

for(s=2;s<=b/2;s++)
{

if (b%s==0)
{
f=0;
break;
}

}

if(f==1)
a=a/10;

else
break;

}

if(f==1)
cout<<i<<endl;

}
cout<<endl<<"The End "<<endl;
}

};

int main()
{
strange a;
a.checked();
}
ReplyDelete
Replies
Mohima akterOctober 26, 2019 at 10:50 AM
Name:Mohima Akter
ID-201811112,Sec-C
Batch-57th

#include
using namespace std;
class strange
{
public:
int m,a,h,i,j,l;

void checked()
{
cout<<"All the strange number between 1 to 10,000 is given below :"<<endl;

for(i=1;i<=10000;i++)
{
h=1;
a=i;

for(l=2;l<=a/2;l++)
{
if (a%l==0)
{
h=0;
break;
}
}

if (h==0)
continue;

m=i;

for(j=0;m!=0;j++)
{

a=m%10;

if(a==0)
{
h=0;
break;
}

for(l=2;l<=a/2;l++)
{

if (a%l==0)
{
h=0;
break;
}

}

if(h==1)
m=m/10;

else
break;

}

if(h==1)
cout<<i<<endl;

}
cout<<endl<<"The End "<<endl;
}

};

int main()
{
strange m;
m.checked();
}
ReplyDelete
Replies
Md.ZinnahNovember 10, 2019 at 12:45 AM
Name:Mohammat.ali zinnah
id: 201910567
batch:60

#include
using namespace std;
class strange
{
public:
int a,i,b,f,j,s;

void checked()
{
cout<<"All the strange number between 1 to 10,000 is given below :"<<endl;

for(i=1;i<=10000;i++)
{
f=1;
b=i;

for(s=2;s<=b/2;s++)
{
if (b%s==0)
{
f=0;
break;
}
}

if (f==0)
continue;

a=i;

for(j=0;a!=0;j++)
{

b=a%10;

if(b==0)
{
f=0;
break;
}

for(s=2;s<=b/2;s++)
{

if (b%s==0)
{
f=0;
break;
}

}

if(f==1)
a=a/10;

else
break;

}

if(f==1)
cout<<i<<endl;

}
cout<<endl<<"The End "<<endl;
}

};

int main()
{
strange a;
a.checked();
}
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Replies
md rafsanDecember 7, 2019 at 11:57 PM
// MD.RAFSAN HABIB
// ID. 201730597

//Write a C++ Program to find all the strange number between 1 and 10,000. Use C++ Abstraction.

#include
using namespace std;
class B
{
public:
int n,i,x,y,j,k;

void checked()
{

for(i=1; i<=10000; i++)
{
y=1;
x=i;

for(k=2; k<=x/2; k++)
{
if (x%k==0)
{
y=0;
break;
}
}

if (y==0)
continue;

n=i;

for(j=0; n!=0; j++)
{

x=n%10;

if(x==0)
{
y=0;
break;
}

for(k=2; k<=x/2; k++)
{

if (x%k==0)
{
y=0;
break;
}

}

if(y==1)
n=n/10;

else
break;

}

if(y==1)
cout<<i<<endl;

}
cout<<"end";
}

};

int main()
{
B a;
a.checked();
}
ReplyDelete
Replies
abdul karimDecember 8, 2019 at 10:36 PM
Md.abdul karim
ID : 201910508 CSE 60th

#include
using namespace std;
class strange
{
public:
int n,i,r,p,j,k;

void checked()
{
cout<<"All the strange number between 1 to 10,000 is given below :"<<endl;

for(i=1;i<=10000;i++)
{
p=1;
r=i;

for(k=2;k<=r/2;k++)
{
if (r%k==0)
{
p=0;
break;
}
}

if (p==0)
continue;

n=i;

for(j=0;n!=0;j++)
{

r=n%10;

if(r==0)
{
p=0;
break;
}

for(k=2;k<=r/2;k++)
{

if (r%k==0)
{
p=0;
break;
}

}

if(p==1)
n=n/10;

else
break;

}

if(p==1)
cout<<i<<endl;

}
cout<<endl<<"The End "<<endl;
}

};

int main()
{
strange a;
a.checked();
}
ReplyDelete
Replies
Jhumur AktarDecember 11, 2019 at 7:26 AM
Jhumur Akter
ID.201910687
60th
#include

using namespace std;
class r
{
public:
int n,i,r,c,l,k;

int att()
{

for(l=1;l<=10000;l++)
{
c=1;
n=l;

for(i=2;i<=n/2;i++)
{
if (n%i==0)
{
c=0;
break;
}
}

if (c==0)

continue;

r=l;

for(k=0;r!=0;k++)
{

n=r%10;

if(n==0)
{
c=0;
break;
}

for(i=2;i<=n/2;i++)
{

if (n%i==0)
{
c=0;
break;
}

}

if(c==1)
r=r/10;

else
break;

}

if(c==1)
cout<<l<<endl;

}

}

};

int main()
{
r obj;
obj.att();
}
ReplyDelete
Replies
kawsar ahmedDecember 11, 2019 at 8:56 AM
Kawsar Ahmed
Id.201910560
60th
https://ideone.com/vBHSbr
ReplyDelete
Replies
Sharmin AkterDecember 11, 2019 at 9:32 PM
//Sharmin Akter
//Id:201910106
//Batch:60th
//(: :)

#include
#include
using namespace std;
class S
{
public:
int n,i,r,c,l,k;

int att()
{
cout<< "All The Strange Number 1 To 10000 : " <<endl;

for(l=1;l<=10000;l++)
{
c=1;
n=l;

for(i=2;i<=n/2;i++)
{
if (n%i==0)
{
c=0;
break;
}
}

if (c==0)

continue;

r=l;

for(k=0;r!=0;k++)
{

n=r%10;

if(n==0)
{
c=0;
break;
}

for(i=2;i<=n/2;i++)
{

if (n%i==0)
{
c=0;
break;
}

}

if(c==1)
r=r/10;

else
break;

}

if(c==1)
cout<<l<<endl;

}
cout<< "\nThank You So Much (:" <<endl;
getch();

}

};

int main()
{
S obj;
obj.att();
}
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Replies

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