Compilare: main.cpp: In constructor 'Node::Node(int, bool)': main.cpp:30:10: warning: 'Node::isLeaf' will be initialized after [-Wreorder] bool isLeaf; ^~~~~~ main.cpp:29:9: warning: 'int Node::n' [-Wreorder] int n; ^ main.cpp:69:1: warning: when initialized here [-Wreorder] Node::Node(int t, bool isLeaf): t(t), isLeaf(isLeaf), n(0){ ^~~~ main.cpp: In function 'int main()': main.cpp:453:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("abce.in", "r", stdin); ^ main.cpp:454:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("abce.out", "w", stdout); ^