Borderou de evaluare (job #12389)

Eroare de compilare: user.cpp: In function 'int main()': user.cpp:19:12: error: 'strlen' was not declared in this scope user.cpp:25:31: error: 'strncmp' was not declared in this scope user.cpp:16:7: warning: unused variable 'n' [-Wunused-variable] user.cpp:14:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:15:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:17:9: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result [-Wunused-result]