Compilare: user.c: In function ‘main’: user.c:48:10: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("teme.out", "w", stdout); ^ user.c:51:14: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] for (fscanf(f, "%d", &N); N; N--) { ^ user.c:52:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &M); ^ user.c:54:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &sorted[i].time, &sorted[i].dead); ^