Compilare: user.cpp: In function 'void treci(char, char, char)': user.cpp:38: warning: array subscript has type 'char' user.cpp:38: 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:40: warning: array subscript has type 'char' user.cpp:40: warning: array subscript has type 'char' user.cpp:41: warning: array subscript has type 'char' user.cpp:41: warning: array subscript has type 'char' user.cpp:43: warning: array subscript has type 'char' user.cpp:43: warning: array subscript has type 'char' user.cpp:43: warning: array subscript has type 'char' user.cpp:43: 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: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:45: warning: array subscript has type 'char' user.cpp:45: 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:47: warning: array subscript has type 'char' user.cpp:47: 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:50: warning: array subscript has type 'char' user.cpp:50: warning: array subscript has type 'char' user.cpp:51: warning: array subscript has type 'char' user.cpp:51: warning: array subscript has type 'char' user.cpp:51: warning: array subscript has type 'char' user.cpp:51: warning: array subscript has type 'char' user.cpp:51: warning: array subscript has type 'char' user.cpp:51: warning: array subscript has type 'char' user.cpp: In function 'void citire()': user.cpp:62: warning: array subscript has type 'char' user.cpp:62: warning: array subscript has type 'char' user.cpp:63: warning: array subscript has type 'char' user.cpp:64: warning: array subscript has type 'char' user.cpp: In function 'void back()': user.cpp:85: warning: comparison between signed and unsigned integer expressions