Borderou de evaluare (job #95837)

Compilare: user.cpp: In function ‘int main()’: user.cpp:19:30: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[4]’ [-Wformat] 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:16:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function ‘int f(char)’: user.cpp:13:1: warning: control reaches end of non-void function [-Wreturn-type]