Compilare: user.cpp: In function ‘int main()’: user.cpp:33: warning: array subscript has type ‘char’ user.cpp:35: warning: array subscript has type ‘char’ user.cpp:35: warning: array subscript has type ‘char’ user.cpp:36: warning: array subscript has type ‘char’ user.cpp:40: warning: array subscript has type ‘char’ user.cpp:46: warning: array subscript has type ‘char’ user.cpp:49: warning: array subscript has type ‘char’ user.cpp:50: warning: array subscript has type ‘char’ user.cpp:54: warning: array subscript has type ‘char’ user.cpp:65: warning: array subscript has type ‘char’ user.cpp:69: warning: array subscript has type ‘char’ user.cpp:14: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:15: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:17: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result /tmp/cclqDGfY.o: In function `main': user.cpp:(.text+0x56): warning: the `gets' function is dangerous and should not be used.