#include <stdio.h>
#include <ctype.h>
 
int main( void ) {
  char string[100];
  int i;
  int count = 0;
 
  printf( "Enter a sentence> " );
  fgets( string, 100, stdin );
  string[strlen( string ) - 1] = '\0';
 
  /* count the words */
  for ( i = 0; string[i]; ++i ) {
    if ( isspace( string[i] ) ) {
      ++count;
    }
  }
 
  if ( i > 0 ) {
    ++count;
  }
 
  printf( "\"%s\" has %d words\n", string, count );
 
  return 0;
}

int main(void)
{
    char str[] = " hello \n   to all \n\r\f the \t people ";
    int limit = strlen(str);
    int i, change = 1, words = 0;
    for(i = 0; i < limit; ++i)
    {
        if(!isspace(str[i]))
        {
            if(change)
            {
                ++words;
                change = 0;
            }
        }
        else
        {
            change = 1;
        }
    }
    printf("Word count: %d\n", words);
    getchar();
    return(0);
}

int wordCount( char *line )
{
  int count = 0 ;
 
  // advance until the first nonwhitespace character
  while( isspace( *line ) )  line++ ;
 
  int len = strlen( line ) ;
  bool onWord = true ;
 
  for( int i = 0 ; i < len; i++ )
  {
    if( isspace( line[i] ) )
    {
      // INcrement count only when
      // stepping OFF word to whitespace
      if( onWord )
        count++ ;
      onWord = false ;
    }
    else
    {
      onWord = true ;
    }
 
  }
 
  // If you ended while still on word
  // then increment count here to count
  // the "last" word
  if( onWord )
    count++ ;
 
  return count ;
 
}
 
int main()
{
  char *line1 = "a line of words" ;
  char *line2 = "Hi ther e     !!  Each glob of    characters\n"
  "counts as a     word \t \t \t \n" ;
  char *line3 = "Here's   another long    line of 3 4 6 6  8 " ;
 
  printf( "%d words in `%s`\n\n", wordCount(line1), line1 ) ;
  printf( "%d words in `%s`\n\n", wordCount(line2), line2 ) ;
  printf( "%d words in `%s`\n\n", wordCount(line3), line3 ) ;
}

#include<stdio.h>
 
int main()
{
 
   char name[20];
   int i, j, count = 0, end = 0, line = 0, word = 0, flag = 0; 
   printf ( "Enter the strings\n" );
   gets ( name ); 
 
   for ( i = 0; name[i] != '\0'; i++ )
   {
      if ( name[i] == ' ' || name[i] == '\t' )
         printf ( " " );
      count++;
 
      if ( name[i] == '\0' )
         end = 0;
      else if ( end == 0 )
      {
         end = 1;
         line++;
      }
      if ( name[i] == ' ' || name[i] == '\t' || name[i] == '\n' )
         flag = 0;
      else if ( flag == 0 )
      {
         flag = 1;
         word++;
      }
 
   } 
 
   printf ( "Total number of characters %d\n", count );
 
   printf ( "Total number of word %d\n", word );
 
   printf ( "Total number of line %d\n", line );
 
}