C program to Count Characters, Tabs, Spaces in a file

# include "stdio.h" 
main( ) 
{ 
 FILE *fp ; 
 char ch ; 
 int nol = 0, not = 0, nob = 0, noc = 0 ; 
 
 fp = fopen ( "PR1.C", "r" ) ; 
 while ( 1 ) 
 { 
 ch = fgetc ( fp ) ; 
 if ( ch == EOF ) 
 break ; 
 noc++ ; 
 if ( ch == ' ' ) 
 nob++ ; 
 if ( ch == '\n' ) 
 nol++ ; 
 if ( ch == '\t' ) 
 not++ ; 
 } 
 fclose ( fp ) ; 
 printf ( "\nNumber of characters = %d", noc ) ; 
 printf ( "\nNumber of blanks = %d", nob ) ; 
 printf ( "\nNumber of tabs = %d", not ) ; 
 printf ( "\nNumber of lines = %d", nol ) ; 
}