Compilare: user.cpp: In function ‘int del(Trie*, char*)’: user.cpp:44: warning: suggest parentheses around assignment used as truth value user.cpp: In function ‘int cuv(Trie*, char*)’: user.cpp:64: warning: suggest parentheses around assignment used as truth value user.cpp: In function ‘int pref(Trie*, char*, int)’: user.cpp:73: warning: suggest parentheses around assignment used as truth value user.cpp: In function ‘int main()’: user.cpp:84: warning: format ‘%s’ expects type ‘char*’, but argument 4 has type ‘int (*)(Trie*, char*)’ user.cpp:84: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int pref(Trie*, char*, int)’: user.cpp:74: warning: array subscript is below array bounds user.cpp: In function ‘int main()’: user.cpp:74: warning: array subscript is below array bounds