Example-1 –

WAP in C to print the numbers from 1, 2, 3..... 10

#include < stdio.h >
#include < conio.h >
void main ( )
{
                    // Variable Declaration
                    int i;
                    clrscr ( );
                    
                    // Processing and Output
                     i = 1;
                     while ( i < = 10 )
                     {
                               printf ( “\n %d “, i);
                               i = i + 1;
                      }
                      getch ( );
}

Example-2 –

WAP in C to print the numbers from 10, 9, 8..... 1

#include < stdio.h >
#include < conio.h >
void main ( )
{
               // Variable Declaration
               int i;
               clrscr ( );
               // Processing and Output
               i = 10;
               while ( i > = 1 )
               {
                        printf ( “\n %d “, i);
                        i = i - 1;
                }
                getch ( );
}

 

Example-3 –

WAP in C to print the numbers from N, N-1, N-2.....3, 2, 1

#include < stdio.h >
#include < conio.h >
void main ( )
{
               // Variable Declaration
               int i, n ;
               clrscr ( );
               // Input
               printf ( “ \n Enter the value of N \n “ );
               scanf ( “ %d “, &n );
               // Processing and Output
                i = n;
                while ( i > = 1 )
                {
                        printf ( “\n %d “, i);
                        i = i - 1;
                 }
                 getch ( );
}

 

Example-4 –

WAP in C to print the numbers from 1, 2, 3, ... N-2, N-1, N

#include < stdio.h >
#include < conio.h >
void main ( )
{
               // Variable Declaration
               int i, n ;
               clrscr ( );
               // Input
               printf ( “ \n Enter the value of N \n “ );
               scanf ( “ %d “, &n );
               // Processing and Output
               i = 1;
               while ( i < = n )
               {
                        printf ( “\n %d “, i);
                        i = i + 1;
                }
                getch ( );
}

 

Example-5 –

WAP in C to print the numbers from 2, 4, 6 ... N-2, N

#include < stdio.h >
#include < conio.h >
void main ( )
{
               // Variable Declaration
               int i, n ;
               clrscr ( );
               // Input
               printf ( “ \n Enter the value of N \n “ );
               scanf ( “ %d “, &n );
               // Processing and Output
               i = 2;
               while ( i < = n )
               {
                        printf ( “\n %d “, i);
                        i = i + 2;
                }
                getch ( );
}

 

Example-6 –

WAP in C to print the numbers from 200, 400, 600 ... N-200, N

#include < stdio.h >
#include < conio.h >
void main ( )
{
               // Variable Declaration
               int i, n ;
               clrscr ( );
               // Input
               printf ( “ \n Enter the value of N \n “ );
               scanf ( “ %d “, &n );
               // Processing and Output
                i = 200;
                while ( i < = n )
                {
                        printf ( “\n %d “, i);
                        i = i + 200;
                 }
                 getch ( );
}

 

Example-7 –

WAP in C to print the numbers from 2, 4, 8, 16 ... N/2, N

#include < stdio.h >
#include < conio.h >
void main ( )
{
               // Variable Declaration
               int i, n ;
               clrscr ( );
               // Input
               printf ( “ \n Enter the value of N \n “ );
               scanf ( “ %d “, &n );
               // Processing and Output
                i = 2;
               while ( i < = n )
               {
                        printf ( “\n %d “, i);
                        i = i * 2;
               }
               getch ( );
}

 

Example-8 –

WAP in C to print the numbers from N, N/2, ... 16, 8, 4, 2, 1

#include < stdio.h >
#include < conio.h >
void main ( )
{
               // Variable Declaration
               int i, n ;
               clrscr ( );
               // Input
               printf ( “ \n Enter the value of N \n “ );
               scanf ( “ %d “, &n );
               // Processing and Output
               i = n;
               while ( i > = 1 )
               {
                        printf ( “\n %d “, i);
                        i = i / 2;
                }
               getch ( );
}

 

Example-9 –

A number is input through the keyboard. WAP in C to print the table of that number.

#include < stdio.h >
#include < conio.h >
void main ( )
{
               // Variable Declaration
               int i, n, ans ;
               clrscr ( );
               // Input
               printf ( “ \n Enter the value of N \n “ );
               scanf ( “ %d “, &n );
               // Processing and Output
                i = 1;
                while ( i < = 10 )
                {
                        ans = n * i;
                        printf ( “\n %d “, ans);
                        i = i + 1;
                 }
                getch ( );
}

 

Example-10 –

A number is input through the keyboard. WAP in C to print the sum of its digits. [Hint: n= 1257 ans = 1+2=5+7 = 15]

#include < stdio.h >
#include < conio.h >
void main ( )
{
               // Variable Declaration
               int n, ans, a ;
               clrscr ( );
               // Input
               printf ( “ \n Enter the value of N \n “ );
               scanf ( “ %d “, &n );                                                  //1257             
               // Processing and Output
               ans =0;
               while ( n ! = 0 )
               {
                        a = n % 10;                                                       //1
                        ans = ans + a;                                                  // 15
                        n = n / 10;                                                         //0
                }
                printf ( “\n %d “, ans);                                                //15
                getch ( );
}