Compilare: main.cpp: In function 'void add(trie*, char*, int)': main.cpp:36:23: warning: array subscript has type 'char' [-Wchar-subscripts] if (rad->f[ poz[*s] ] == NULL) ^ main.cpp:37:23: warning: array subscript has type 'char' [-Wchar-subscripts] rad->f[ poz[*s] ] = new trie; ^ main.cpp:39:24: warning: array subscript has type 'char' [-Wchar-subscripts] add (rad->f[ poz[*s] ], s+1, pas+1); ^ main.cpp: In function 'void afis(trie*)': main.cpp:84:20: warning: NULL used in arithmetic [-Wpointer-arith] if (rad->ch == NULL) ^~~~ main.cpp:89:28: warning: array subscript has type 'char' [-Wchar-subscripts] if (rad->f[ poz[rad->ch] ]) ^ main.cpp:90:34: warning: array subscript has type 'char' [-Wchar-subscripts] afis (rad->f[ poz[rad->ch] ]); ^