Compilare: main.cpp: In function 'void bfs(int, int, std::vector<int>*, FILE*)': main.cpp:24:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < graphList[nod].size(); j++) { ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:45:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &n, &m, &src); ^ main.cpp:49:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &x, &y); ^