C Tutor... C Tutorial....: Program to count the number of capital letters, small letters, digits and special symbols in given String

Program to count the number of capital letters, small letters, digits and special symbols in given String


/* Take input into a string and count the number of capital letters,
small letters, digits and special symbols in it. */

#include 

int main(void)
{
 char str[80];
 int x, cap, small, dig, sym;

 printf("\nEnter a string : ");
 gets(str);

 x = cap = small = dig = sym = 0;

 for( ; str[x] != '\0' ; x++)
 {
  if(str[x] >= 'A' && str[x] <= 'Z') cap++;
  else if(str[x] >= 'a' && str[x] <= 'z') small++;
  else if(str[x] >= '0' && str[x] <= '9')  dig++;
  else sym++;

 }

 printf("\nCapital letters %d\nSmall letters %d", cap, small);
 printf("\nDigits %d\nSpecial symbols %d", dig, sym);

 return 0;
}

History Of C..

In the beginning was Charles Babbage and his Analytical Engine, a machine
he built in 1822 that could be programmed to carry out different computations.
Move forward more than 100 years, where the U.S. government in
1942 used concepts from Babbage’s engine to create the ENIAC, the first
modern computer.
Meanwhile, over at the AT&T Bell Labs, in 1972 Dennis Ritchie was working
with two languages: B (for Bell) and BCPL (Basic Combined Programming
Language). Inspired by Pascal, Mr. Ritchie developed the C programming
language.