Program 10 Check Character, Number or Digit

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

void main()

{

char ch;
clrscr();
printf("enter value of charecter:");
scanf("%c",&ch);

if(ch>=65&&ch<=90)
{

printf("this is capital letter alphabet");

}

else if(ch>=97&&ch<=122)
{

printf("this is smaller letter alphabet");

}

else if(ch>=48&&ch<=57)
{

printf("this is a digits");

}

else
{

printf("this is special symbol");

}

getch();

}