Borderou de evaluare (job #203376)

Compilare: user.cpp: In function ‘int main()’: user.cpp:37:23: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:12:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:13:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:58:34: warning: ‘m’ may be used uninitialized in this function [-Wuninitialized]