Compilare: user.c: In function ‘main’: user.c:26: warning: implicit declaration of function ‘new’ user.c:28: warning: implicit declaration of function ‘insert’ user.c:18: warning: unused variable ‘i’ user.c:17: warning: unused variable ‘q’ user.c:24: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c: At top level: user.c:37: warning: conflicting types for ‘new’ user.c:26: note: previous implicit declaration of ‘new’ was here user.c: In function ‘new’: user.c:42: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:52: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c: At top level: user.c:64: warning: conflicting types for ‘insert’ user.c:28: note: previous implicit declaration of ‘insert’ was here user.c: In function ‘insert’: user.c:67: warning: unused variable ‘p’ user.c:72: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result