Array013

Input five numbers in two different arrays and print common elements of these arrays.

#include <stdio.h>
#include <conio.h>

void main ( )
{           
            int           n[5], n1[5], n2[5], a, b, c = 0;
            clrscr ( );
                                                 
            for ( a = 0; a < 5; a++ )
            {                                                 
                             printf ("\n\t\t Enter a number in 1st array......:"); scanf ("%d", & n[a]);
            }                                                                      
            for ( a = 0; a < 5; a++ )
            {                                             
                             printf ("\n\t\t Enter a number in 2nd array......:"); scanf ("%d", & n1[a]);
            }                        
                                                               
            for ( a = 0; a < 5; a++ )
            {                                                     
                             for ( b = 0; b < 5; b++ )
                             {                                                        
                                              if ( n[a] == n1[b] )
                                              {                   
                                                             n2[c++] = n[a];
                                              }                                     
                             }
            }                                                     
                                                                         
            printf ("\n\n\t\t Common elements are\n\n\t\t");
            for ( a = 0; a < c; a++ )
                             printf (" %d", n2[a]);
            getch ( );
}

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Array012

Input an amount in rupees  and calculate the currency.

#include <stdio.h>
#include <conio.h>

void main ( )
{               
              int           no, q, c = 0;
              int           d[ ] = { 500, 100, 50, 20, 10, 5, 2, 1 };
              clrscr ( );
                                                     
              printf ("\n\t\t Enter an amount......: Rs."); scanf ("%d", & no);
              while ( no > 0 )
              {                             
                                q = no / d[c];
                                no = no % d[c];
                                if ( q != 0 )
                                           printf ("\n\n\t\t %3d X %3d = %5d", d[c], q, q*d[c]);
                                c++;
              }
              getch ( );
}

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Array011

Input a decimal number  and print the octal equivalent of that number.

#include <stdio.h>
#include <conio.h>

void main ( )
{
             int       md[10], no, s = 0, d =0;
             clrscr ( );
                                       
             printf ("\n\t\t Enter a decimal number......:"); scanf ("%d", & no);
             while ( no > 0 )
             {                                  
                               md[s] = no % 8;
                               no = no / 8;
                               s++;
             }
                                                     
             printf ("\n\n\n\t\t The Octal number =  ");
             for ( d = s - 1; d >= 0; d-- )
                               printf ("%d", md[d]);
             getch ( );
}

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Loop control structure068

Input a octal number  and print the decimal equivalent of that number.

#include <stdio.h>
#include <conio.h>
#include <math.h>
void main ( )
{
          int          md, no, s = 0, d =0;
          clrscr ( );
                                   
          printf ("\n\t\t Enter a octal number......:"); scanf ("%d", & no);
          while ( no > 0 )
          {                                        
                            md = no % 10;
                            no = no / 10;
                            md = md * pow ( 8,d );
                            s = s + md;
                            d++;
          }
                                              
          printf ("\n\n\n\t\t The Decimal number =  %d", s);
          getch ( );
}

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Loop control structure067

Input a binary number  and print the decimal equivalent of that number.

#include <stdio.h>
#include <conio.h>
#include <math.h>
void main ( )
{
             int          md, no, s = 0, d =0;
             clrscr ( );
                                      
             printf ("\n\t\t Enter a binary number......:"); scanf ("%d", & no);
             while ( no > 0 )
             {                                    
                               md = no % 10;
                               no = no / 10;
                               md = md * pow ( 2,d );
                               s = s + md;
                               d++;
             }
                              
             printf ("\n\n\n\t\t The Decimal number =  %d", s);
             getch ( );
}

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Array010

Input a number ( less than 32767 ) and print the binary equivalent of that number.

#include <stdio.h>
#include <conio.h>

void main ( )
{
               int          md[10], no, c = 0, d =0;
               clrscr ( );
                                      
               printf ("\n\t\t Enter a number......:"); scanf ("%d", & no);
               while ( no > 0 )
               {                             
                                 md[c] = no % 2;
                                 no = no / 2;
                                 c++;
               }
                                
               printf ("\n\n\n\t\t The Binary numbers = ");
               for ( d = c - 1; d >= 0; d-- )
               {                                                                                  
                                 printf ("%d ", md[d]);
               }
               getch ( );
}

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Array009

Input a five digit number ( less than 32767 ) and store all the digits of that number in an array.

#include <stdio.h>
#include <conio.h>

void main ( )
{
            int         md[6], no, c = 0, d =0;
            clrscr ( );
                                        
            printf ("\n\t\t Enter a number......:"); scanf ("%d", & no);
            while ( no > 0 )
            {                             
                              md[c] = no % 10;
                              no = no / 10;
                              c++;
            }                          
                                   
            printf ("\n\n\n\t\t The digits are = ");
            for ( d = c - 1; d >= 0; d-- )
            {                                        
                              printf ("%d ", md[d]);
            }
            getch ( );
}

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Array008

Input five numbers in an array and find the second highest value.

#include <stdio.h>
#include <conio.h>
#include <math.h>

void main ( )
{
          int         n[5], i, h = 0, h1 = 0;
          clrscr ( );
                                     
          for ( i = 0; i < 5; i++ )
          {                        
                          printf ("\n\t\t Enter a number in an array......:"); scanf ("%d", & n[i]);
                                    
                          if ( n[i] > h )
                                       h = n[i];   
          }                                 
          for ( i = 0; i < 5; i++ )
          {                                              
                          if ( n[i] > h1 && n[i] < h )
                                        h1 = n[i];
          }   
          printf ("\n\n\n\t\t The highest number is = %d", h);
          printf ("\n\n\n\t\t The  second highest number is = %d", h1);
          
          getch ( );
}

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Array007

Input five numbers in an array and print the square root of them.

#include <stdio.h>
#include <conio.h>
#include <math.h>

void main ( )
{
          float        n[5], n1[5], i;
          clrscr ( );
                                     
          for ( i = 0; i < 5; i++ )
          {                                     
                          printf ("\n\t\t Enter a number in an array......:"); scanf ("%f", & n[i]);
                                                              
                          n1[i] = sqrt (n[i]);
          }                                                       
                                                           
          printf ("\n\n\n\t\t\t   The Square root of Array\n");
          for ( i = 0; i < 5; i++ )
          {                                                              
                          printf ("\n\t\t\t\t %.2f\t = %.2f", n[i], n1[i]);
          }
          getch ( );
}

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Array006

Input five numbers in an array and print the square of them. 

#include <stdio.h>
#include <conio.h>

void main ( )
{
              int          n[5], n1[5], i;
              clrscr ( );
                                         
              for ( i = 0; i < 5; i++ )
              {                                       
                              printf ("\n\t\t Enter a number in an array......:"); scanf ("%d", & n[i]);
                                            
                              n1[i] = n[i] * n[i];
              }
                                                                       
              printf ("\n\n\n\t\t\t   The Square of Array\n");
              for ( i = 0; i < 5; i++ )
              {                                            
                              printf ("\n\t\t\t\t %d = %d", n[i], n1[i]);
              }
              getch ( );
}

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Array005

Input five numbers in two different array and print the sum of them.

#include <stdio.h>
#include <conio.h>

void main ( )
{
            int           n[5], n1[5], n2[5], i;
            clrscr ( );
                           
            for ( i = 0; i < 5; i++ )
            {                       
                            printf ("\n\t\t Enter a number in first array......:"); scanf ("%d", & n[i]);
            }                        
            for ( i = 0; i < 5; i++ )
            {                                             
                            printf ("\n\t\t\ Enter a number in second array......:"); scanf ("%d", & n1[i]);
            }
                                      
            printf ("\n\n\n\t\t\t     The Sum of Array\n");
            for ( i = 0; i < 5; i++ )
            {                                                 
                            n2[i] = n[i] + n1[i];
                            printf ("\n\t\t\t\t %d + %d = %d", n[i], n1[i], n2[i]);
            }
            getch ( );
}

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Array004

Input five numbers in an array. If these are even numbers then one will be store in the array or if these are odd numbers then zero will be store in the array.

#include <stdio.h>
#include <conio.h>

void main ( )
{
          int         n[5], n1[5], i;
          clrscr ( );
                                      
          for ( i = 0; i < 5; i++ )
          {                                        
                          printf ("\n\t\t\t Enter a number......:"); scanf ("%d", & n[i]);
                                                     
                          if ( n[i] % 2 == 0 )
                                            n1[i] = 1;
                          else                           
                                            n1[i] = 0;
          }                                                  
          printf ("\n\n");
          for ( i = 0; i < 5; i++ )
          {                                            
                          printf ("\n\t\t\t\t %d \t %d", n[i], n1[i]);
          }
          getch ( );
}

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Array003

Input ten numbers in an array and if these are positive numbers then store it in first array or if these are negative numbers then store it in second array.

#include <stdio.h>
#include <conio.h>

void main ( )
{
            int         i, j = 0, k = 0, num[10], ne[10], po[10];
            clrscr ( );
                                         
            printf ("\n\t\t Sorting of positive and negative numbers\n\n");
            for ( i = 0; i < 10; i++ )
            {                                           
                            printf ("\n\t\t\t Enter a number......:"); scanf ("%d", & num[i]);
                                             
                            if ( num[i] > 0 )
                                           po[ j++] = num[i];
                            else                               
                                           ne[ k++] = num[i];
            }
                                             
            printf ("\n\n\t Positive numbers =");
            for ( i = 0; i < j; i++ )
            {                                             
                            printf (" %d", po[i]);
            }                                              
            printf ("\n\n\t Negative numbers = ");
            for ( i = 0; i < k; i++ )
            {                                                
                            printf (" %d", ne[i]);
            }
            getch ( );
}

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Array002

Input five numbers in an array and transfer these numbers in reverse order to a different array.

#include <stdio.h>
#include <conio.h>

void main ( )
{
            int        no1[5], no2[5], i, j = 4;
            clrscr ( );
                                   
            printf ("\n\t Number transfer from one array to another array\n\n");
                                            
            for ( i = 0; i <= 4; i++ )
            {                                                     
                            printf ("\n\t\t\t Enter a number......:"); scanf ("%d", & no1[i]);
                                                       
                            no2[ j--] = no1[i];
            }                                               
            for ( i = 0; i <= 4; i++ )
            {                                                        
                            printf ("\n\t Number in 1st array : - %d \t Number in 2nd array : - %d",
                                               no1[i], no2[i]);
            }
            getch ( );   
}

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Array001

Input five number in an array and transfer these number in a different array.

#include <stdio.h>
#include <conio.h>

void main ( )
{
            int           no1[5], no2[5], i;
            clrscr ( );
                                             
            printf ("\n\t Number transfer from one array to another array\n\n");
                                                       
            for ( i = 0; i <= 4; i++ )
            {                                                   
                            printf ("\n\t\t\t Enter a number......:"); scanf ("%d", & no1[i]);
                                          
                            no2[i] = no1[i];
            }                                         
            for ( i = 0; i <= 4; i++ )
            {                                                 
                            printf ("\n\t Number in 1st array : - %d \t Number in 2nd array : - %d", no1[i],
                                          no2[i]);
            }
            getch ( );   
}

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Case structure005

Create a menu driven program.

#include <stdio.h>
#include <conio.h>

void main ( )
{
             int          cho, no, no1, co, md, fl, s;
             unsigned long    fact;
             clrscr ( );
                                                 
             while ( 1 )
             {                                                    
                      printf ("\n\t\t\tMENU");
                      printf ("\n\t\t\t====");
                      printf ("\n\n\t\t   1. FACTORIAL\n");
                      printf ("\t\t   2. PRIME \n");
                      printf ("\t\t   3. ARMSTRONG \n");
                      printf ("\t\t   4. ODD / EVEN \n");
                      printf ("\t\t   5. EXIT \n");
                                                                           
                      printf ("\n\t\t   Your Choice ?"); scanf ("%d", &cho);
                                                                                       
                      switch ( cho )
                      {                                           
                                 case 1:
                                               fact = 1;
                                               printf ("\n\t Enter the number.......:"); scanf ("%d",&no);
                                                                                                    
                                               for ( co =1; co <= no; co++ )
                                               {                                             
                                                                 fact = fact * co;
                                               }
                                               printf ("\n\t FACTORIAL = %ld", fact);
                                               break;
                                                                
                                 case 2:                    
                                               fl = 0;
                                               printf ("\n\t Enter a number...........:"); scanf ("%d", &no);
                                                                                                                    
                                               for ( co = 2; co < no; co++ )
                                               {                                                        
                                                                  md = no % co;
                                                                  if ( md == 0 )
                                                                  {                                                    
                                                                                fl = 1;
                                                                                break;
                                                                  }
                                               }
                                               if ( fl == 0 )
                                                         printf ("\n\t It is a Prime number");
                                               else                              
                                                         printf ("\n\t It is not a Prime number");
                                               break;
                                                         
                                 case 3:                                
                                               s = 0;
                                               printf ("\n\t Enter a number.........:"); scanf ("%d",&no);
                                               no1 = no;
                                                                                                      
                                               while ( no > 0 )
                                               {                                                      
                                                                 md = no % 10;
                                                                 no = no /10;
                                                                 s = s + ( md * md * md );
                                               }                                                         
                                               if ( no1 == s )
                                                             printf ("\n\t Number = %d is an Armstrong number", no1);
                                               else           
                                                             printf ("\n\t Number = %d is not an Armstrong number",
                                                                              no1);
                                               break;
                                                                      
                                 case 4:      
                                               printf ("\n\t Enter a number.........:"); scanf ("%d",&no);
                                                                            
                                               if ( no % 2 == 0 )
                                                                  printf ("\n\t Even number");
                                               else                                                    
                                                                  printf ("\n\t Odd number");
                                               break;
                                                             
                                 case 5:    
                                               exit ( );
                                                             
                                 default:           
                                               printf("\n WRONG CHOICE.");
                      }
                      getch ( );
                      clrscr ( );
             }

}

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Loop control structure066

Write a program to construct this figure.

                                              9

                                            8 8

                                          7 7  7

                                        6 6  6  6 

                                     5  5  5  5  5

                                   4  4  4  4  4  4

                                 3  3  3  3  3  3  3

                               2  2  2  2  2  2  2  2

                             1  1  1  1  1  1  1  1  1


#include <stdio.h>
#include <conio.h>

void main ( )
{
       int         i, j, k, l = 35;
       clrscr ( );

       printf ("\n\t\t\t    Design of Numbers\n\n\n");

       for ( i = 9; i >= 1; i-- )
       {
                for ( j = 0; j < l; j++ )
                {
                         printf(" ");
                }
                for ( k = 1; k <= 10 - i; k++ )
                {
                         printf ("%d ", i);
                }
                printf ( "\n" );
                l--;
           }
           getch( );
}

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