Compilare: user.c: In function ‘bsearch’: user.c:9:7: warning: unused variable ‘mid’ [-Wunused-variable] int mid; ^ user.c: In function ‘main’: user.c:16:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.c:21:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &x); ^