Compilare: user.c: In function ‘main’: user.c:19: warning: unused variable ‘mst’ user.c: In function ‘kruskal’: user.c:70: warning: ‘return’ with a value, in function returning void user.c: In function ‘readEdges’: user.c:81: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:84: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c: In function ‘print’: user.c:112: warning: too many arguments for format