Compilare: user.cpp: In function ‘long int evalueaza(char*)’: user.cpp:85: warning: unused variable ‘nr’ user.cpp: In function ‘int main()’: user.cpp:101: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:102: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:104: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:111: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp:112: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result /tmp/ccZuN3Yu.o: In function `main': user.cpp:(.text+0x3e8): warning: the `gets' function is dangerous and should not be used.