#include <stdio.h>
#include <stdlib.h>
int main()
{FILE *f;
int a[2],b;
if((f=fopen("adunare.in","rb"))==NULL)
{
    printf("Fisierul nu poate fi deschis!");
    exit(1);
}
fread(a,sizeof(a[0]),2,f);
if(fread==0)
    exit(1);
    else{
fclose(f);
if((f=fopen("adunare.out","wb"))==NULL)
{
    printf("Fisierul nu poate fi deschis!");
    exit(1);
}
fwrite(&b,sizeof(int),1,f);
fclose(f);}
    return 0;
}