Compilare: user.c: In function ‘main’: user.c:59:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("cautbin.in", "r", stdin); ^ user.c:60:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("cautbin.out", "w", stdout); ^ user.c:63:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.c:65:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &arr[i]); ^ user.c:68:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &m); ^ user.c:71:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &tip, &v); ^ user.c: In function ‘bin_search1’: user.c:37:2: warning: ‘mid’ may be used uninitialized in this function [-Wmaybe-uninitialized] return mid - 1; ^ user.c: In function ‘bin_search2’: user.c:55:2: warning: ‘mid’ may be used uninitialized in this function [-Wmaybe-uninitialized] return mid + 1; ^