C Program for SWAPPING THE STRING

#include conio.h>

#include stdio.h>

void main()

{

          char a[50],temp=0;

          int i=0,c=0,c1=0,l=0;

          clrscr();

          printf("ENTER THE STRING= ");

          flushall();

          do

          {

                   a[i++]=getchar();

          }while(a[i-1]!='\n');

          a[i]='\0';

          for(i=0;a[i]!='\0';i++)

          {

                   if(a[i]==' ' || a[i]=='\n')

                   {

                             c++;

                   }

          }

printf("\nTHE TOTAL NO OF WORDS BEFORE SWAPING IS  %d\n\n",c);

          l=strlen(a);

          l--;

          for(i=0;a[i]!='\0';i++)

          {

                   temp=a[i];

                   a[i]=a[i+1];

                   a[i+1]=temp;

                   i++;

          }

          for(i=0;a[i]!=0;i++);

                   if(l%2!=0)

                   {

                             temp=a[i-2];

                             a[i-2]=a[i-1];

                             a[i-1]=temp;

                   }       

                   else

                   {

                             a[i]='\n';

                             a[i+1]='\0';

                   }

          printf("%s",a);

          for(i=0;a[i]!='\0';i++)

          {

                   if(a[i]==' ' || a[i]=='\n')

                   {

                             c1++;

                   }

          }

printf("\nTHE TOTAL NO OF WORDS AFTER SWAPING IS %d\n\n",c1);

getch();

}

OUTPUT :

ENTER THE STRING: KAMLESH D MENGAR

THE TOTAL NO OF BEFORE SWAPPING 3

AKLMSE H DEMGNRA

THE TOTAL NO OF AFTER SWAPPING 3