Compilare: user.c: In function ‘read’: user.c:27:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &task -> size); ^ user.c:31:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &task -> v[i]); ^ user.c: In function ‘main’: user.c:128:10: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("interclasare.out", "w", stdout); ^