# include <stdio.h>

typedef struct record{
char nome[20];
enter code herechar cognome[30];
} rec ;

void main(){
rec p={"mario","rossi"};
FILE* f;
f=fopen("x.dat","w");
fwrite(&p,sizeof(rec),2,f);// i write 2 times mario rossi
fclose(f);
f=fopen("x.dat","r");
rec d[2];
fread(d,sizeof(rec),1,f);// pt1
fread(d,sizeof(rec),1,f);
printf("%s %sn",d[0].nome,d[0].cognome);
printf("%s %sn",d[1].nome,d[1].cognome);
fclose(f);


f=fopen("x.dat","r");
d[2];
fread(d,sizeof(rec),1,f);// pt2
fread(d+sizeof(rec),sizeof(rec),1,f); //pt3
printf("%s %sn",d[0].nome,d[0].cognome);
printf("%s %sn",d[1].nome,d[1].cognome);
fclose(f);

    }

fwrite(&p,sizeof(rec),2,f);// i write 2 times mario rossi