Compilare: main.cpp: In function 'void adaugare(trie*, char*, int)': main.cpp:25:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (strlen(cuv) == poz) ~~~~~~~~~~~~^~~~~~ main.cpp: In function 'void stergere(trie*, char*, int)': main.cpp:38:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz == strlen(c)) ~~~~^~~~~~~~~~~~ main.cpp: In function 'int nr_aparitii(trie*, char*, int)': main.cpp:51:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (strlen(cuv) == poz) ~~~~~~~~~~~~^~~~~~ main.cpp: In function 'int max_prefix(trie*, char*, int)': main.cpp:62:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (strlen(cuv)==poz) ~~~~~~~~~~~^~~~~ main.cpp: In function 'int nr_aparitii(trie*, char*, int)': main.cpp:59:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int max_prefix(trie*, char*, int)': main.cpp:70:1: warning: control reaches end of non-void function [-Wreturn-type] } ^