Compilare: user.cpp: In function ‘void insert(char*)’: user.cpp:28: warning: comparison between signed and unsigned integer expressions user.cpp:31: warning: array subscript has type ‘char’ user.cpp:33: warning: array subscript has type ‘char’ user.cpp:37: warning: comparison between signed and unsigned integer expressions user.cpp:39: warning: array subscript has type ‘char’ user.cpp:41: warning: array subscript has type ‘char’ user.cpp:42: warning: array subscript has type ‘char’ user.cpp: In function ‘void del(char*)’: user.cpp:49: warning: array subscript has type ‘char’ user.cpp:50: warning: comparison between signed and unsigned integer expressions user.cpp:62: warning: array subscript has type ‘char’ user.cpp:66: warning: comparison between signed and unsigned integer expressions user.cpp:70: warning: array subscript has type ‘char’ user.cpp:49: warning: unused variable ‘tempNode’ user.cpp: In function ‘int apar(char*)’: user.cpp:77: warning: comparison between signed and unsigned integer expressions user.cpp:80: warning: array subscript has type ‘char’ user.cpp: In function ‘int pref(char*)’: user.cpp:94: warning: comparison between signed and unsigned integer expressions user.cpp:97: warning: array subscript has type ‘char’ user.cpp: In function ‘int main()’: user.cpp:113: warning: format ‘%s’ expects type ‘char*’, but argument 4 has type ‘char (*)[23]’