Compilare: user.cpp: In function 'int main()': user.cpp:17: warning: format '%s' expects type 'char*', but argument 2 has type 'char (*)[2000005]' user.cpp:17: warning: format '%s' expects type 'char*', but argument 3 has type 'char (*)[2000005]' user.cpp:21: warning: comparison between signed and unsigned integer expressions user.cpp:31: warning: comparison between signed and unsigned integer expressions user.cpp:36: warning: comparison between signed and unsigned integer expressions