Compilare: user.cpp: In function 'char* solve()': user.cpp:37: warning: deprecated conversion from string constant to 'char*' user.cpp:38: warning: deprecated conversion from string constant to 'char*' user.cpp:43: warning: deprecated conversion from string constant to 'char*' user.cpp:51: warning: deprecated conversion from string constant to 'char*' user.cpp:63: warning: deprecated conversion from string constant to 'char*' user.cpp:64: warning: deprecated conversion from string constant to 'char*' user.cpp: In function 'int main()': user.cpp:40: warning: 'j' may be used uninitialized in this function user.cpp:40: note: 'j' was declared here