Compilare: user.c: In function ‘update’: user.c:12:3: warning: statement with no effect [-Wunused-value] for(poz; poz<=n; poz+=zero(poz)) ^ user.c: In function ‘suma’: user.c:18:3: warning: statement with no effect [-Wunused-value] for(poz; poz>0; poz-=zero(poz)) ^ user.c: In function ‘main’: user.c:47:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.c:49:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[i].val); ^