Compilare: user.cpp: In function ‘void add(trie*)’: user.cpp:37: warning: array subscript has type ‘char’ user.cpp:37: warning: array subscript has type ‘char’ user.cpp:40: warning: array subscript has type ‘char’ user.cpp:40: warning: array subscript has type ‘char’ user.cpp:43: warning: array subscript has type ‘char’ user.cpp:43: warning: array subscript has type ‘char’ user.cpp: In function ‘void show(trie*, char*)’: user.cpp:54: warning: array subscript has type ‘char’ user.cpp:54: warning: array subscript has type ‘char’ user.cpp:57: warning: array subscript has type ‘char’ user.cpp:57: warning: array subscript has type ‘char’ user.cpp: In function ‘int main()’: user.cpp:76: warning: array subscript has type ‘char’ user.cpp:78: warning: array subscript has type ‘char’ user.cpp:79: warning: array subscript has type ‘char’ user.cpp:82: warning: array subscript has type ‘char’ user.cpp:82: warning: array subscript has type ‘char’ user.cpp:83: warning: array subscript has type ‘char’ user.cpp:83: warning: array subscript has type ‘char’ user.cpp:84: warning: array subscript has type ‘char’ user.cpp:84: warning: array subscript has type ‘char’ user.cpp:89: warning: array subscript has type ‘char’ user.cpp:89: warning: array subscript has type ‘char’ user.cpp:93: warning: array subscript has type ‘char’ user.cpp:93: warning: array subscript has type ‘char’ user.cpp:64: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:65: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:69: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:74: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result