Compilare: user.cpp: In function ‘int main()’: user.cpp:14: warning: format ‘%s’ expects type ‘char*’, but argument 2 has type ‘char (*)[600000]’ user.cpp:51: warning: format ‘%s’ expects type ‘char*’, but argument 2 has type ‘short unsigned int*’ user.cpp:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result