Compilare: user.c: In function 'min_r': user.c:49: warning: 'dc' may be used uninitialized in this function user.c:49: warning: 'dl' may be used uninitialized in this function user.c: In function 'calc_rhombus': user.c:115: warning: 'ej' may be used uninitialized in this function user.c:115: warning: 'sj' may be used uninitialized in this function user.c:115: warning: 'ei' may be used uninitialized in this function user.c:115: warning: 'si' may be used uninitialized in this function