Eroare de compilare: user.cpp:2:22: error: iostream.h: No such file or directory user.cpp: In function ‘void insert(char*)’: user.cpp:30: warning: comparison between signed and unsigned integer expressions user.cpp:33: warning: array subscript has type ‘char’ user.cpp:35: warning: array subscript has type ‘char’ user.cpp:39: warning: comparison between signed and unsigned integer expressions user.cpp:41: 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: In function ‘void del(char*)’: user.cpp:52: warning: array subscript has type ‘char’ user.cpp:53: warning: comparison between signed and unsigned integer expressions user.cpp:62: warning: array subscript has type ‘char’ user.cpp:67: warning: comparison between signed and unsigned integer expressions user.cpp:72: warning: comparison between signed and unsigned integer expressions user.cpp:76: warning: array subscript has type ‘char’ user.cpp: In function ‘int apar(char*)’: user.cpp:88: warning: comparison between signed and unsigned integer expressions user.cpp:91: warning: array subscript has type ‘char’ user.cpp: In function ‘int pref(char*)’: user.cpp:105: warning: comparison between signed and unsigned integer expressions user.cpp:108: warning: array subscript has type ‘char’ user.cpp: In function ‘int main()’: user.cpp:124: warning: format ‘%s’ expects type ‘char*’, but argument 4 has type ‘char (*)[23]’