Compilare: user.c: In function ‘main’: user.c:46:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%d%d", &n, &k); ^ user.c:50:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%d", &v[i]); ^ user.c: In function ‘cautare_binara’: user.c:37:5: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized] return a; ^