Compilare: user.cpp: In function 'int main()': user.cpp:25: warning: format '%s' expects type 'char*', but argument 3 has type 'char (*)[1600]' user.cpp:33: warning: comparison between signed and unsigned integer expressions user.cpp:36: warning: comparison between signed and unsigned integer expressions user.cpp:41: warning: comparison between signed and unsigned integer expressions user.cpp:47: warning: comparison between signed and unsigned integer expressions