Compilare: user.cpp: In function ‘void citire()’: user.cpp:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:42: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp:44: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp: In function ‘void afisare()’: user.cpp:51: warning: comparison between signed and unsigned integer expressions user.cpp:49: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result /tmp/ccUyultj.o: In function `citire()': user.cpp:(.text+0x1c3): warning: the `gets' function is dangerous and should not be used.