Borderou de evaluare (job #327719)

Compilare: user.cpp: In function ‘int fanumar(char*)’: user.cpp:12:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘int main()’: user.cpp:53:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:55:16: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:77:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:34:13: warning: unused variable ‘cmm’ [-Wunused-variable] user.cpp:32:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:33:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:35:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:38:16: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] /tmp/ccJiaAnz.o: In function `main': user.cpp:(.text.startup+0x86): warning: the `gets' function is dangerous and should not be used.