Compilare: main.cpp: In function 'void dfs(std::vector<int>*, int, int*, int*, int*, int*, std::stack<Edge>*, int*, std::vector<int>*)': main.cpp:17:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < graph[nod].size(); k++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:111:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < biconex[i].size(); j++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:72:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ main.cpp:73:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &m); ^ main.cpp:84:41: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &nod1, &nod2); ^