Print n Prime Nos.

Click Here To Download C++ File Of This Program

 //Downloaded From www.c4cpp.co.nr  
 //(C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int n=0,i,l,j,k=2,a=0;  
 cout<<"Enter Limit"<<endl;  
 cin>>l;  
 while(n<l)  
 {  
 j=2;  
 a=0;  
 while(j<=k/2)  
 {  
 if(k%j==0)  
 a=a+1;  
 j++;  
 }  
 if(a==0)  
 {  
 cout<<endl<<k<<endl;  
 }  
 else  
 l++;  
 n++;  
 k++;  
 }  
 getch();  
 }  

No. of repetitions of a digit

Click Here To Download C++ File Of This Program

 //Downloaded From www.c4cpp.co.nr  
 //(C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 #include<string.h>  
 void main()  
 {  
 clrscr();  
 int i,j,c=1,l;  
 char a[100];  
 cout<<"Enter Array"<<endl;  
 cin.getline(a,100);  
 l=strlen(a);  
 for(i=0;i<l;i++)  
 {  
 c=1;  
 for(j=i+1;j<l;j++)  
 {  
 if(a[i]==a[j])  
 {  
 c=c+1;  
 a[j]=' ';  
 }  
 }  
 if(a[i]!=' ')  
 cout<<"Element"<<a[i]<<"is present"<<c<<"times"<<endl;  
 }  
 getch();  
 }  

Array in given pattern

Click Here To Download C++ File Of This Program

 /*  
 4 3 2 1  
 0 3 2 1  
 0 0 2 1  
 0 0 0 1  
 */  
 //Downloaded From www.c4cpp.co.nr  
 //(C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int i,n,g,j,a[100],b[100][100];  
 cout<<"Enter Limit"<<endl;  
 cin>>n;  
 cout<<"Enter "<<endl;  
 for(g=0;g<n;g++)  
 cin>>a[g];  
 for(i=0;i<n;i++)  
 {  
 for(j=n-1;j>=0;j--)  
 {  
 b[i][j]=a[j];  
 }  
 }  
 for(i=0;i<n;i++)  
 {  
 for(j=0;j<n;j++)  
 {  
 if(i>j)  
 b[i][j]=0;  
 }  
 }  
 for(i=0;i<n;i++)  
 {  
 cout<<endl;  
 for(j=0;j<n;j++)  
 {  
 cout<<b[i][j]<<" ";  
 }  
 }  
 getch();  
 }  

Predict Output 2

Click Here To Download C++ File Of This Program

 //Downloaded From www.c4cpp.co.nr  
 //(C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 #include<string.h>  
 #include<stdio.h>  
 #include<ctype.h>  
 void main()  
 {  
 clrscr();  
 char *Name="AnnUal ExaMiNaTION";  
 for(int x=0;x<strlen(Name);x++)  
 if(islower(Name[x]))  
 Name[x]=toupper(Name[x]);  
 else  
 if(isupper(Name[x]))  
 if(x%2!=0)  
 Name[x]=tolower(Name[x-1]);  
 else  
 Name[x]--;  
 cout<<Name<<endl;  
 getch();  
 }  

Predict Output

Click Here To Download C++ File Of This Program

 //Downloaded From www.c4cpp.co.nr  
 //(C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {clrscr();  
 int i=0,ua=0,ub=0,uc=0,fail=0;  
 while(i<=5)  
 {switch(i++)  
  {case 1:  
  case 2:++ua;  
  case 3:  
  case 4:++ub;  
  case 5:++uc;  
  default:++fail;  
   }  
 }  
 cout<<"    ua="<<ua<<",ub="<<ub<<",uc="<<uc<<",fail="<<fail;  
 getch();  
 }  

Calculator

Click Here To Download C++ File Of This Program

 //Downloaded From www.c4cpp.co.nr  
 //(C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 int a,b,s,op;  
 clrscr();  
 cout<<"\t\t\t\tCALCULATOR\n\t\t\tAll Rights Reserved\a\n";  
 cout<<"\t\tIllegal Copying is punishable\a\nEnter Number A\a :";  
 cin>>a;  
 cout<<"\nEnter Number B\a :";  
 cin>>b;  
 cout<<endl<<"\t\t1.Addition\n\t\t2.Subtraction\n\t\t";  
 cout<<"3.Division(Whole Numbers only)\n\t\t4.Multiplication\n\t\t";  
 cout<<"5.Square of A\n\t\t6.Square of B\n\t\t";  
 cout<<"7.'A'square - 'B'square\n\t\t8.'A'square + 'B'square\n\t\t";  
 cout<<"9.'A'square * 'B'square\n\t\t10.'A'square / 'B'square(whole numbers only";  
 cout<<"\n\t\t11.'A'cube\n\t\t12.'B'cube";  
 cout<<endl<<" Enter Choice\a :";  
 cin>>op;  
 switch(op)  
 {  
 case 1:s=a+b;  
     cout<<"Sum = \a"<<s;  
     break;  
 case 2:s=a-b;  
     cout<<"Difference =\a "<<s;  
     break;  
     case 3:s=a/b;  
     cout<<"Quotient =\a "<<s;  
     break;  
 case 4:s=a*b;  
     cout<<"Product =\a "<<s;  
     break;  
 case 5:s=a*a;  
     cout<<"Square =\a "<<s;  
     break;  
 case 6:s=b*b;  
     cout<<"Square =\a "<<s;  
     break;  
 case 7:s=(a*a)-(b*b);  
     cout<<"Answer =\a "<<s;  
     break;  
 case 8:s=(a*a)+(b*b);  
     cout<<"Answer =\a "<<s;  
     break;  
 case 9:s=(a*a)*(b*b);  
     cout<<"Answer =\a "<<s;  
     break;  
 case 10:s=(a*a)/(b*b);  
     cout<<"Answer =\a "<<s;  
     break;  
 case 11:s=a*a*a;  
     cout<<"Answer =\a "<<s;  
     break;  
 case 12:s=b*b*b;  
     cout<<"Answer =\a "<<s;  
     break;  
 default:cout<<"Invalid\a Choice\a";  
 }  
 getch();  
 }  

Sum of Prime Nos

Click Here To Download C++ File Of This Program

 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int p=0,i,n;  
 cout<<"Enter the no :"<<endl;  
 cin>>n;  
 for(i=2;i<=(n/2);i++)  
 {  
 if(n%i==0)  
 p=1;  
 }  
 if(p==0)  
 cout<<"Prime";  
 else if (p==1)  
 cout<<"Not Prime";  
 getch();  
 }  

Sum of Odd +ve & -ve

Click Here To Download C++ File Of This Program

 // Sum of +ve -ve  
 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int x,a,n=0,h,i,o=0,d=0;  
 cout<<"Enter no of nos u want to enter"<<endl;  
 cin>>h;  
 for(i=1;i<=h;i++)  
 {  
 cin>>a;  
 if((a>0)&& (a%2!=0))  
 {  
 o=o+a;}  
 if ((a<0) && (a%2!=0))  
 {n=n+a; }  
 }  
 cout<<"Sum of odd negative ="<<n<<endl<<"odd +ve ="<<o;  
 getch();  
 }  

Odd Nos. in descending order

Click Here To Download C++ File Of This Program

 //prg to n odd nos in desc order  
 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int i,n;  
 cout<<"Enter the no :"<<endl;  
 cin>>n;  
 if(n%2==0)  
 n=n-1;  
 for(i=n;i>=1;i=i-2)  
 cout<<i<<endl;  
 getch();  
 }  

No. of Digits

Click Here To Download C++ File Of This Program

 //prg for no of digits  
 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int s,n,i,d;  
 cout<<"Enter a number"<<endl;  
 cin>>n;  
 for(i=0;n>0;i++)  
 {  
 n=n/10;  
 }  
 cout<<i;  
 getch();  
 }  

Greatest of 3 Nos.

Click Here To Download C++ File Of This Program

 //prg to find greatest of 3 nos  
 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int a,b,c,bi;  
 cout<<"Enter 3 nos"<<endl;  
 cin>>a>>b>>c;  
 bi=a>b?(a>c?a:c):((b>c)?b:c);  
 cout<<"Greatest = "<<bi;  
 getch();  
 }  

Simple & Compund Interest

Click Here To Download C++ File Of This Program

 //prg to compute SI and CI  
 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 #include<math.h>  
 void main()  
 {  
 clrscr();  
 float t,r,a,c,s,ci;  
 cout<<"Enter Principle :"<<endl;  
 cin>>a;  
 cout<<"Enter Time Period :"<<endl;  
 cin>>t;  
 cout<<"Enter Rate of Interest :"<<endl;  
 cin>>r;  
 s=(a*r*t)/100;  
 c= pow ((((r/100)+1)*a),t);  
 ci = (c-a);  
 cout<<"Simple Interest : "<<s<<"Compound Interest : "<<ci<<endl;  
 getch();  
 }  

No Days, Weeks in a Year

Click Here To Download C++ File Of This Program

 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int d,y,w,da;  
 cout<<"Enter the no of Days"<<endl;  
 cin>>d;  
 y=d/365;  
 w=((y%365)/7);  
 da=((y%365)%7);  
 cout<<y<<"Yrs "<<w<<"Weeks"<<da<<"Days";  
 getch();  
 }  

Greatest of 3 Nos. using Conditional

Click Here To Download C++ File Of This Program

 //prg to find greatest using conditional  
 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int a,b,by;  
 cout<<"Enter 2 nos"<<endl;  
 cin>>a>>b;  
 by=(a>b)?a:b;  
 cout<<"Greatest = "<<by;  
 getch();  
 }  

Factorial

Click Here To Download C++ File Of This Program

 //prg to find factorial  
 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int n,i,f=1;  
 cout<<"Enter a no n"<<endl;  
 cin>>n;  
 for(i=1;i<=n;i++)  
 f=f*i;  
 cout<<"Factorial ="<<f;  
 getch();  
 }  

Insert & Delete from Array

Click Here To Download C++ File Of This Program

 //insert delete an element from array  
 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int n,x,c=0,e,ch,i,a[50],j;  
 cout<<"Enter Array lim"<<endl;  
 cin>>n;  
 cout<<"Enter array"<<endl;  
 for(i=0;i<n;i++)  
 cin>>a[i];  
 cout<<"Enter Choice 1:Deletion 2Insertion"<<endl;  
 cin>>ch;  
 switch(ch)  
 {  
 case 1:  
 cout<<"Enter to be deleted"<<endl;  
 cin>>x;  
 for(i=0;i<n;i++)  
 {  
 if(a[i]==x)  
 {c++;  
 for(j=i;j<n;j++)  
 {  
 a[j]=a[j+1];  
 }  
 }  
 }  
 if(c==0)  
 cout<<"ENP"<<endl;  
 for(i=0;i<n-c;i++)  
 cout<<a[i]<<endl;  
 break;  
 case 2:  
 cout<<"Enter What & Where to be inserted"<<endl;  
 cin>>e>>x;  
 for(i=n;i>=x;i--)  
 a[i]=a[i-1];  
 a[x-1]=e;  
 for(i=0;i<=n;i++)  
 cout<<a[i]<<endl;  
 break;  
 }  
 getch();  
 }  

Pascals Triangle & Pattern

Click Here To Download C++ File Of This Program

 //prg to display diamond and pascals triangle  
 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 void main()  
 {  
 clrscr();  
 int x,i,f,r,b,g,c,h,v=1,q,j,n,p,k=1;  
 int ch;  
 cout<<"Enter choice        1:STARS"<<endl;  
 cout<<"              2:NUMBERS"<<endl;  
 cin>>ch;  
 switch(ch)  
 {  
 //WITH STAR  
 case 1:  
 v=2;  
 char a2[100][100];  
 cout<<"Enter Limit : "<<endl;  
 cin>>n;  
 p=n-1;  
 //INPUTTING  
 for(i=0;i<=(2*n)-2;i++)  
    {  
    for(j=0;j<=(2*n)-2;j++)  
    {  
        a2[i][j]= ' ';  
        }  
        }  
 //STARTING  
 for(i=0;i<=(2*n)-2;i++)  
    {  
    for(j=0;j<=(2*n)-2;j++)  
    {  
        if(((i+j)==p)&&(i<n))  
        {  
        for(c=0;c<k;c++)  
        {  
        a2[i][j]='*';  
        j=j+v;  
        }  
        k++;  
        j=(2*n)-2;  
        r=c-1;  
        }  
        if(((i+j)==(p+2))&&(i>=n))  
        {  
        for(h=r;h>0;h--)  
        {  
        a2[i][j]='*';  
        j=j+v;  
        }  
        p=p+2;  
        r--;  
        j=(2*n)-2;  
        }  
        }  
        }  
 for(i=0;i<=(2*n)-2;i++)  
 {  
 cout<<endl;  
 for(j=0;j<=(2*n)-2;j++)  
 {  
 cout<<a2[i][j];  
 }  
 }  
 break;  
 //CASE TWO WITH NUMBERS  
 case 2:  
 int a[100][100];  
 cout<<"Enter Limit  : "<<endl;  
 cin>>n;  
 p=n-1;  
 for(i=0;i<=(2*n)-2;i++)  
 {  
 for(j=0;j<=(2*n)-2;j++)  
 {  
 a[i][j]=0;  
 }  
 }  
 for(i=0;i<=(2*n)-2;i++)  
 {  
 for(j=0;j<=(2*n)-2;j++)  
 {  
 if(((i+j)==p)&&(i<n))  
 {  
 b=1;  
 for(c=0;c<k;c++)  
 {  
 if(j<=(n-1))  
 {  
 a[i][j]=b;  
 j=j+v;  
 b++;  
 r=b-2;  
 }  
 if(j>(n-1))  
 {  
 a[i][j]=r;  
 j=j+v;  
 r--;  
 }  
 }  
 k=k+2;  
 j=(2*n)-2;  
 r=c-2;  
 }  
 if(((i+j)==p+2)&&(i>=n))  
 {  
 f=1;  
 for(h=r;h>0;h--)  
 {  
 if(j<=(n-1))  
 {  
 a[i][j]=f;  
 j=j+v;  
 f++;  
 x=f-2;  
 }  
 if(j>(n-1))  
 {  
 a[i][j]=x;  
 j=j+v;  
 x--;  
 }  
 }  
 r=r-2;  
 p=p+2;  
 j=(2*n)-2;  
 }  
 }  
 }  
 for(i=0;i<=(2*n)-2;i++)  
 {  
 cout<<endl;  
 for(j=0;j<=(2*n)-2;j++)  
 {  
 if(a[i][j]!=0)  
 cout<<a[i][j];  
 else  
 cout<<" ";  
 }  
 }  
 break;  
 default:  
 cout<<"Wrong choice"<<endl;  
 break;  
 }  
 getch();  
 }  

No. of Vowels, Characers in a String

Click Here To Download C++ File Of This Program

 //NO CHAR VOWELS IN A WORD  
 //Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved.  
 #include<iostream.h>  
 #include<conio.h>  
 #include<ctype.h>  
 #include<stdio.h>  
 #include<string.h>  
 void main()  
 {  
 int i,j=0,l=0,u,v=0,s=0;  
 char st[50];  
 clrscr();  
 cout<<"Enter the string"<<endl;  
 gets(st);  
 l=strlen(st);  
  for(j=0;j<l;j++)  
  {  
  if((st[j]== ' '))  
  s=s+1;  
  if((st[j]=='a')||(st[j]=='e')||(st[j]=='o')||(st[j]=='i')||(st[j]=='u')||(st[j]=='A')||(st[j]=='E')||(st[j]=='O')||(st[j]=='I')||(st[j]=='U'))  
  v=v+1;  
  }  
 cout<<"No of Words = "<<s+1<<endl<<"No Space = "<<s<<endl<<"No of Vowels ="<<v<<endl<<"No of Characters ="<<l-s;  
 getch();  
 }  

Decimal To Binary & vice versa

Click Here To Download C++ File Of This Program

 //prg to conv decimal to binary & binary to decimal 
//Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved. 
#include<iostream.h> 
#include<conio.h> 
#include<math.h> 
void main() 
{ 
clrscr(); 
int a,g,h,s=0,i=0,d,b,ch; 
cout<<endl<<"Enter the choice - "<<endl<<"1:Binary to Decimal"<<endl<<"2:Decimal to Binary"<<endl; 
cin>>ch; 
switch(ch) 
{ 
case 1: 
cout<<"Enter the Binary Digit"<<endl; 
cin>>b; 
while(b>0) 
{ 
a=b%10; 
s=s+a*(pow(2,i)); 
i=i+1; 
b=b/10; 
} 
cout<<"Answer ="<<s<<endl; 
break; 
case 2: 
cout<<"Enter the Decimal"<<endl; 
cin>>d; 
while(d>0) 
{ 
a=d%2; 
a=a*pow(10,i); 
s=s+a; 
i=i+1; 
d=d/2; 
} 
cout<<"Answer ="<<s<<endl; 
break; 
default: 
cout<<"Wrong choice"<<endl; 
break; 
} 
getch(); 
} 

No of Digits in a No.

Click Here To Download C++ File Of This Program

 //No of Digits in  a number 
//Downloaded From www.c4cpp.co.nr. (C)2009.All rights reserved. 
#include<iostream.h> 
#include<conio.h> 
void main() 
{ 
clrscr(); 
int x=0,n; 
cout<<"Enter the number :"; 
cin>>n; 
while(n>0) 
{ 
n=n/10; 
x=x+1; 
} 
cout<<"The no of digits are :"<<x; 
getch(); 
}