Compilare: user.c: In function ‘Solve’: user.c:7:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &k); ^ user.c:14:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i]); ^ user.c: In function ‘main’: user.c:28:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("secventa.in", "r", stdin); ^ user.c:29:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("secventa.out", "w", stdout); ^ user.c: In function ‘Solve’: user.c:24:24: warning: ‘r’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d %d %d\n", r-k+2, r+1, m); ^