Compilare: user.cpp: In member function ‘void Graph::AddEdge(int, int, int)’: user.cpp:56:27: warning: narrowing conversion of ‘((Graph*)this)->Graph::G[v].std::vector<_Tp, _Alloc>::size<Edge, std::allocator<Edge> >()’ from ‘std::vector<Edge>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] Edge a {v, c, G[v].size()}; ^ user.cpp:57:27: warning: narrowing conversion of ‘((Graph*)this)->Graph::G[u].std::vector<_Tp, _Alloc>::size<Edge, std::allocator<Edge> >()’ from ‘std::vector<Edge>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] Edge b {u, c, G[u].size()}; ^ user.cpp: In member function ‘bool Graph::augumentingPath(int, int)’: user.cpp:68:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 0; i <= Terminal; i++) ^ user.cpp: In function ‘void read()’: user.cpp:127:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 0, u, v, c; i < M; i++) ^ user.cpp:126:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &N, &M); ^ user.cpp:129:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d %d", &u, &v, &c); ^