Borderou de evaluare (job #170667)

Compilare: user.cpp: In function ‘void insert(eu*, char*)’: user.cpp:13:12: warning: NULL used in arithmetic [-Wpointer-arith] user.cpp: In function ‘bool destroy(eu*, char*)’: user.cpp:27:12: warning: NULL used in arithmetic [-Wpointer-arith] user.cpp: In function ‘void count(eu*, char*)’: user.cpp:46:12: warning: NULL used in arithmetic [-Wpointer-arith] user.cpp: In function ‘void pref(eu*, char*)’: user.cpp:60:12: warning: NULL used in arithmetic [-Wpointer-arith] user.cpp: In function ‘int main()’: user.cpp:77:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:78:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:81:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:82:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] /tmp/ccHuDAEh.o: In function `main': user.cpp:(.text.startup+0xa0): warning: the `gets' function is dangerous and should not be used.