Eroare de compilare: user.cpp:20: error: ‘fopen’ was not declared in this scope user.cpp:21: error: ‘fopen’ was not declared in this scope user.cpp: In function ‘void insert(char*)’: user.cpp:26: error: ‘strlen’ was not declared in this scope user.cpp:29: warning: array subscript has type ‘char’ user.cpp:31: warning: array subscript has type ‘char’ user.cpp:37: 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: In function ‘void del(char*)’: user.cpp:47: warning: array subscript has type ‘char’ user.cpp:48: error: ‘strlen’ was not declared in this scope user.cpp:60: warning: array subscript has type ‘char’ user.cpp:68: warning: array subscript has type ‘char’ user.cpp:47: warning: unused variable ‘tempNode’ user.cpp: In function ‘int apar(char*)’: user.cpp:75: error: ‘strlen’ was not declared in this scope user.cpp:78: warning: array subscript has type ‘char’ user.cpp: In function ‘int pref(char*)’: user.cpp:92: error: ‘strlen’ was not declared in this scope user.cpp:95: warning: array subscript has type ‘char’ user.cpp: In function ‘int main()’: user.cpp:111: error: ‘fscanf’ was not declared in this scope user.cpp:111: error: ‘EOF’ was not declared in this scope user.cpp:117: error: ‘fprintf’ was not declared in this scope