Compilare: main.cpp: In member function 'void Kosaraju::get_scc()': main.cpp:98:21: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wformat=] 98 | fprintf(fout, "%d\n", sol.size()); | ~^ ~~~~~~~~~~ | | | | int std::vector<std::vector<int> >::size_type {aka long unsigned int} | %ld In member function 'void Queue::push(int)', inlined from 'void bfs(int)' at main.cpp:31:9: main.cpp:14:13: warning: 'q.Queue::last' is used uninitialized [-Wuninitialized] 14 | que[last++] = x; | ~~~~^~ main.cpp: In function 'void bfs(int)': main.cpp:27:9: note: 'q.Queue::last' was declared here 27 | Queue q; | ^ main.cpp:33:9: warning: 'q.Queue::first' is used uninitialized [-Wuninitialized] 33 | while(!q.empty()) { | ^~~~~~~~~~ main.cpp:27:9: note: 'q.Queue::first' was declared here 27 | Queue q; | ^