CSCI151 L26 P1

/*
 * prog.c
 *
 *  Created on: Nov 10, 2016
 *      Author: dastan.iyembergen
 */

#include <stdio.h>

typedef struct _letter{
    char c;
    struct _letter *link;
} letter;

void printAZ(letter *f){
    if (f==NULL)
        return;
    printf("%c ", (*f).c);
    printAZ((*f).link);
}

void printZA(letter *fp){
    if (fp==NULL)
        return;
    printZA((*fp).link);
    printf("%c ", (*fp).c);
}

int main(void) {
    letter *first=NULL;
    letter *prev=NULL;
    int i;
    for (i=0; i<26; i++){
        letter *ch=(letter*)malloc(sizeof(letter));
        (*ch).c='a'+i;
        (*ch).link=NULL;
        if (first==NULL){
            first=ch;
        } else{
            (*prev).link=ch;
        }
        prev=ch;
    }
    printAZ(first);
    printf("\n");
    printZA(first);
    return 0;
}