#include <stdio.h>
#include <malloc.h>

typedef struct Item {
    char c;
    struct Item *next;
} Item;

int getList (Item **);
void putList(Item *);
Item *deleteList(Item *);

int getList(Item **pptr)
{
    char buf[81], *str;
    Item head = {'*', NULL };
    Item *last = &head;
    int n, rc = 1;
    do
    {
        n = scanf("%80[^\n]", buf);
        if(n < 0)
        {
            deleteList(head.next);
            head.next = NULL;
            rc = 0;
            continue;
        }

        if(n > 0)
        {
            for(str = buf; *str != '\0'; ++str){
                last->next = (Item *)malloc(sizeof(Item));
                last = last->next;
                last->c = *str;
            }
            last->next = NULL;
        }
        else
            scanf("%*c");

    } while(n > 0);
        *pptr = head.next;
        return rc;
}

int main()
{
    Item *st;

    while(puts("enter string"), getList(&st)){
        putList("Entered string", st);
        st = deleteList(st);
    }
    return 0;
}

Item *reorg(Item *p)
{
    Item head = {'\0', p},
    *last = &head, *prev = NULL;

    int f = 1;
    while(last && (last->next = delSpace(last->next)) ){
        if( f )
            last->next = delWord(last->next);

        else{
            prev = skipWord(last->next);
            last = prev->next;
            if( last )
            last->c = ' ';
        }
        f = !f;
    }

    if(last && prev){
        prev->next = NULL;
        free(last);
    }

    return head.next;
}