Borderou de evaluare (job #138680)

Compilare: user.cpp: In function ‘int main()’: user.cpp:19:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:25:14: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:11:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:12:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:17:16: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] /tmp/cckusN1O.o: In function `main': user.cpp:(.text.startup+0x64): warning: the `gets' function is dangerous and should not be used.