Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:59: error: ‘memcpy’ was not declared in this scope user.cpp:61: error: ‘memset’ was not declared in this scope user.cpp:27: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result