Compilare: user.cpp: In function 'int main()': user.cpp:34: 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:41: warning: format '%ld' expects type 'long int*', but argument 2 has type 'int*' user.cpp:41: warning: format '%ld' expects type 'long int*', but argument 3 has type 'int*' user.cpp:63: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' user.cpp: In function 'int insert(Nod*&, int)': user.cpp:16: warning: control reaches end of non-void function