Compilare: user.cpp:4: warning: ISO C++ forbids declaration of 'main' with no type user.cpp: In function 'int main()': user.cpp:10: warning: format '%d' expects type 'int*', but argument 3 has type 'int' user.cpp:11: warning: format '%d' expects type 'int*', but argument 3 has type 'int' user.cpp:16: warning: format '%d' expects type 'int*', but argument 3 has type 'int' user.cpp:10: warning: 'n' is used uninitialized in this function user.cpp:11: warning: 'k' is used uninitialized in this function user.cpp:16: warning: 'aux' is used uninitialized in this function