Compilare: user.cpp: In function 'int main()': user.cpp:30: warning: format '%ld' expects type 'long int*', but argument 2 has type 'int*' user.cpp:33: warning: format '%ld' expects type 'long int*', but argument 2 has type 'int*' user.cpp:37: warning: format '%ld' expects type 'long int*', but argument 2 has type 'int*' user.cpp:37: warning: format '%ld' expects type 'long int*', but argument 3 has type 'int*' user.cpp:60: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' user.cpp: In function 'int insert(Nod*&, int)': user.cpp:15: warning: control reaches end of non-void function