Compilare: user.cpp: In constructor ‘node::node(int, int, int, node*, node*)’: user.cpp:22:9: warning: ‘node::leftBound’ will be initialized after [-Wreorder] int leftBound; ^ user.cpp:21:9: warning: ‘int node::rightBound’ [-Wreorder] int rightBound; ^ user.cpp:27:5: warning: when initialized here [-Wreorder] node (int max, int leftBound, int rightBound, node* leftSon, node* rightSon): ^ user.cpp: In member function ‘void heavyPath::build()’: user.cpp:121:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < path.size (); ++i) ^ user.cpp: In function ‘void buildPaths(int)’: user.cpp:159:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < graph[vertex].size (); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:202:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("heavypath.in", "r", stdin); ^ user.cpp:203:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("heavypath.out", "w", stdout); ^ user.cpp:207:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &n, &m); ^ user.cpp:209:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &value[i]); ^ user.cpp:212:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &x, &y); ^ user.cpp:225:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d%d", &type, &x, &y); ^ user.cpp: In function ‘void buildPaths(int)’: user.cpp:176:21: warning: ‘bestSon’ may be used uninitialized in this function [-Wmaybe-uninitialized] path[bestSon]->addVertex (vertex); ^