c_assignment3.c

#include <stdio.h>
#define WORD 1
#define PUNC 0
int is_punc(char c)
{
    if(c==' ' || c==',' || c=='\t' || c==';' || c=='.')
        return 1;
    return 0;    
}
int main()
{
    int c, wordcount=0, state=WORD;
    c=getchar();
    if( (!(is_punc(c))) && c!=EOF) wordcount++;
    while(c!=EOF)
    {        
        printf("%c %d %d\n", c, state, wordcount);
        c=getchar();
        if(is_punc(c) && state==WORD)
        {            
            state=PUNC;
        } 
        if( (!(is_punc(c))) && state==PUNC && c!=EOF)
        {
            wordcount++;
            state=WORD;
        }
    }
    printf("%d\n", wordcount);
    return 0;
}