Borderou de evaluare (job #26653)

Compilare: user.cpp: In function ‘int main()’: user.cpp:40:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:43:13: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:7:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:9:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:12:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]