Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:197: error: ‘memset’ was not declared in this scope user.cpp:174: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:175: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:177: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:186: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:193: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result