Compilare: main.cpp: In member function 'bool Dinic::bfs()': main.cpp:24:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int it = 0; it < q.size(); it++) { ~~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:78:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &n, &m); ^ main.cpp:83:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d", &a, &b, &c); ^