Compilare: main.cpp: In function 'int bfs(int, int, std::vector<int>&)': main.cpp:12:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for(int i=0;i<parent.size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int max_flow(int, int)': main.cpp:37:15: warning: 'flow' may be used uninitialized in this function [-Wmaybe-uninitialized] 37 | while(flow==bfs(start,final,parent)){ | ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~