Compilare: user.c: In function 'BellmanFord': user.c:13: warning: unused variable 'j' user.c: In function 'validare_rezultat': user.c:106: warning: unused variable 'ct1' user.c:106: warning: unused variable 'prt' user.c: In function 'main': user.c:201: warning: implicit declaration of function 'close' user.c: In function 'creaza_graf': user.c:81: warning: 'cnst' may be used uninitialized in this function user.c:81: warning: 'val' may be used uninitialized in this function