Compilare: user.cpp: In function ‘int main()’: user.cpp:36: warning: array subscript has type ‘char’ user.cpp:36: warning: array subscript has type ‘char’ user.cpp:49: warning: array subscript has type ‘char’ user.cpp:49: warning: array subscript has type ‘char’ user.cpp:64: warning: array subscript has type ‘char’ user.cpp:64: warning: array subscript has type ‘char’ user.cpp:83: warning: statement has no effect user.cpp:112: warning: array subscript has type ‘char’ user.cpp:112: warning: array subscript has type ‘char’ user.cpp:121: warning: array subscript has type ‘char’ user.cpp:121: warning: array subscript has type ‘char’ user.cpp:126: warning: array subscript has type ‘char’ user.cpp:11: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:12: 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 user.cpp:117: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:118: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result /tmp/ccjt8z88.o: In function `main': user.cpp:(.text+0x25a): warning: the `gets' function is dangerous and should not be used.