Eroare de compilare: main.cpp: In function 'int main()': main.cpp:89:45: error: 'que' was not declared in this scope case '2': printf( "%d\n", que( T, line+2 ) ); break; ^ main.cpp:90:48: error: 'pre' was not declared in this scope case '3': printf( "%d\n", pre( T, line+2, 0 ) ); break; ^ main.cpp:80:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen( "trie.in", "r", stdin ); ^ main.cpp:81:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen( "trie.out", "w", stdout ); ^ main.cpp:83:26: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets( line, 32, stdin ); ^ main.cpp:93:27: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets( line, 32, stdin ); ^ Non zero exit status: 1