Compilare: user.cpp: In function ‘bool processNode(std::deque<int>&, std::deque<int>&)’: user.cpp:103:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(lastEdge[nod] < activeGraph[nod].size()) { ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:153:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &k); ^ user.cpp:159:65: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &edges[i].a, &edges[i].b, &edges[i].val); ^