Compilare: user.cpp: In function 'void solve()': user.cpp:15: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:17: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:29: warning: format '%d' expects type 'int', but argument 2 has type 'long int' user.cpp:31: warning: format '%d' expects type 'int', but argument 2 has type 'long int' user.cpp: In function 'void back(int, int, int)': user.cpp:38: warning: statement has no effect