Compilare: user.cpp: In function 'void scan()': user.cpp:21: warning: use of 'll' length modifier with 'f' type character user.cpp:24: warning: use of 'll' length modifier with 'f' type character user.cpp:27: warning: use of 'll' length modifier with 'f' type character user.cpp:31: warning: use of 'll' length modifier with 'f' type character user.cpp: In function 'void solve()': user.cpp:82: warning: unused variable 'j' user.cpp: In function 'void print()': user.cpp:106: warning: use of 'll' length modifier with 'f' type character user.cpp:103: warning: unused variable 'j'