Borderou de evaluare (job #134649)

Compilare: user.cpp: In function ‘long int eval(long int, long int, long int, long int)’: user.cpp:37:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘int main()’: user.cpp:63:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:64:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] /tmp/ccF4Xfxt.o: In function `main': user.cpp:(.text.startup+0x36): warning: the `gets' function is dangerous and should not be used.