C using pointers

C Program to Count number of words, digits,vowels using pointers

#include

#include

#include

#include

#define low 1

#define high 0

void main()

{

   int nob, now, nod, nov, nos, pos = high;

   char *str;

   nob = now = nod = nov = nos = 0;

   clrscr();

   printf("Enter any string : ");

   gets(str);

   while (*str != '\0')

   {

      if (*str == ' ')

      {

         pos = high;

         ++nob;

      }

       else if (pos == high)

      {

        

         pos = low;

         ++now;

      }

       if (isdigit(*str))

         ++nod;

      if (isalpha(*str))

         switch (*str)

        {

            case 'a':

            case 'e':

            case 'i':

            case 'o':

            case 'u':

            case 'A':

            case 'E':

            case 'I':

            case 'O':

            case 'U':

               ++nov;

               break;

         }

 (*str))

         ++nos;

      str++;

   }

   printf("\nNumber of words  %d", now);

   printf("\nNumber of spaces %d", nob);

   printf("\nNumber of vowels %d", nov);

   printf("\nNumber of digits %d", nod);

   printf("\nNumber of special characters %d", nos);

   getch();

}

Output

Enter any string : pritesh a taral from c4learn.com

Number of words 5

Number of spaces 4

Number of vowels 9

Number of digits 1

Number of special characters 5

C Program to Sort the list of Strings

#include

#include

#include

int main()

{

   char *str[5], *temp;

   int i, j, n;

   printf("\nHow many names do you want to have?");

   scanf("%d", &n);

    for (i = 0; i < n; i++)

   {

      printf("\nEnter the name %d: ", i);

      flushall();

      gets(str[i]);

    }

    for (i = 0; i < n; i++)

     {

      for (j = 0; j < n - 1; j++)

        {

         if (strcmp(str[j], str[j + 1]) > 0) {

            strcpy(temp, str[j]);

            strcpy(str[j], str[j + 1]);

            strcpy(str[j + 1], temp);

         }

      }

   }

    flushall();

    printf("\nSorted List : ");

   for (i = 0; i < n; i++)

      puts(str[i]);

    return (0);

}

Output

How many names do you want to have? 4

Enter the name 0: pri

Enter the name 1: prt

Enter the name 2: prq

Enter the name 3: pra

Sorted List : pra pri prq prt