Compilare: main.cpp: In function 'void adaugare(trie*, char*, int)': main.cpp:25:21: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 25 | if (strlen(cuv) == poz) | ~~~~~~~~~~~~^~~~~~ main.cpp: In function 'void stergere(trie*, char*, int)': main.cpp:38:13: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 38 | if (poz == strlen(c)) | ~~~~^~~~~~~~~~~~ main.cpp: In function 'int nr_aparitii(trie*, char*, int)': main.cpp:51:21: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 51 | if (strlen(cuv) == poz) | ~~~~~~~~~~~~^~~~~~ main.cpp: In function 'int max_prefix(trie*, char*, int)': main.cpp:62:20: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 62 | if (strlen(cuv)==poz) | ~~~~~~~~~~~^~~~~ main.cpp: In function 'int nr_aparitii(trie*, char*, int)': main.cpp:58:16: warning: control reaches end of non-void function [-Wreturn-type] 58 | nr_aparitii(rad->litere[litera], cuv, poz + 1); | ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int max_prefix(trie*, char*, int)': main.cpp:69:15: warning: control reaches end of non-void function [-Wreturn-type] 69 | max_prefix(rad->litere[litera], cuv, poz + 1); | ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~