#include <stdio.h>
#include <stdlib.h>
#include <string.h>
typedef struct{
    char *scelte;
    int num_scelte;
}livello;
int princ_molt(int pos,livello *val,int n,char *sol,int count,FILE *fout);
int main(int argc, const char * argv[]) {
    FILE *fin,*fout;
    livello *val;
    char *sol,stringa[4];
    int i,num;

    if((fin=fopen("file1.txt","r"))==NULL){
        printf("errore apertura file1\n");
        return -1;
    }
    if((fout=fopen("file2.txt","w"))==NULL){
        printf("errore apertura file2\n");
        return -2;
    }
    fscanf(fin,"%d",&num);
    val=malloc(num *sizeof(livello));
    sol=malloc(num *sizeof(char));

    for(i=0;i<num;i++){
        fscanf(fin,"%s",stringa);
        val[i].num_scelte=strlen(stringa);
        val[i].scelte=malloc(val[i].num_scelte *sizeof(char));

    }

    return 0;
}

int princ_molt(int pos,livello *val,int n,char *sol,int count,FILE *fout){
    int i;
    if(pos>=n){
        for(i=0;i<n;i++)
            fprintf(fout,"%c ",sol[i]);
        printf("\n");
        return count +1;

    }
    for(i=0;i<val[pos].num_scelte;i++){
        sol[pos]=val[pos].scelte[i];
        count=princ_molt(pos+1,val,n,sol,count,fout);
    }
    return count;
}