Borderou de evaluare (job #398541)

Compilare: user.cpp: In function ‘int main()’: user.cpp:9:13: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:35:23: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:6:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:7:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:12:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]