Compilare: user.cpp: In function ‘int back(char, char, char, char, char, char, char)’: user.cpp:16: warning: array subscript has type ‘char’ user.cpp:16: warning: array subscript has type ‘char’ user.cpp:16: warning: array subscript has type ‘char’ user.cpp:16: warning: array subscript has type ‘char’ user.cpp:18: warning: array subscript has type ‘char’ user.cpp:18: warning: array subscript has type ‘char’ user.cpp:18: warning: array subscript has type ‘char’ user.cpp:25: warning: array subscript has type ‘char’ user.cpp:25: warning: array subscript has type ‘char’ user.cpp:25: warning: array subscript has type ‘char’ user.cpp:30: warning: array subscript has type ‘char’ user.cpp:30: warning: array subscript has type ‘char’ user.cpp:30: warning: array subscript has type ‘char’ user.cpp:32: warning: array subscript has type ‘char’ user.cpp:32: warning: array subscript has type ‘char’ user.cpp:32: warning: array subscript has type ‘char’ user.cpp:39: warning: array subscript has type ‘char’ user.cpp:39: warning: array subscript has type ‘char’ user.cpp:39: warning: array subscript has type ‘char’ user.cpp:44: warning: array subscript has type ‘char’ user.cpp:44: warning: array subscript has type ‘char’ user.cpp:44: warning: array subscript has type ‘char’ user.cpp:46: warning: array subscript has type ‘char’ user.cpp:46: warning: array subscript has type ‘char’ user.cpp:46: warning: array subscript has type ‘char’ user.cpp:53: warning: array subscript has type ‘char’ user.cpp:53: warning: array subscript has type ‘char’ user.cpp:53: warning: array subscript has type ‘char’ user.cpp:57: warning: array subscript has type ‘char’ user.cpp:57: warning: array subscript has type ‘char’ user.cpp:57: warning: array subscript has type ‘char’ user.cpp:57: warning: array subscript has type ‘char’ user.cpp:59: warning: array subscript has type ‘char’ user.cpp:59: warning: array subscript has type ‘char’ user.cpp:59: warning: array subscript has type ‘char’ user.cpp:66: warning: array subscript has type ‘char’ user.cpp:66: warning: array subscript has type ‘char’ user.cpp:66: warning: array subscript has type ‘char’ user.cpp: In function ‘int main()’: user.cpp:71: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:72: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:73: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:74: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:77: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result