Compilare: user.c: In function 'main': user.c:50: warning: format '%li' expects type 'long int *', but argument 3 has type 'int *' user.c:50: warning: format '%li' expects type 'long int *', but argument 4 has type 'int *' user.c:52: warning: implicit declaration of function 'qsort' user.c:41: warning: unused variable 'sf2' user.c:41: warning: unused variable 'restu' user.c:41: warning: 'ultim' may be used uninitialized in this function