Compilare: main.cpp: In function 'void BFS(int, int, int, std::vector<int>&)': main.cpp:42:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (auto i = 0; i < A[nod].size(); i++) ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void BFS_S(int, int, int&)': main.cpp:76:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (auto i = 0; i < A[x].size(); i++) ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:136:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (auto i = 0; i < A[x].size(); i++) ~~^~~~~~~~~~~~~ main.cpp:143:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (auto j = 0; j < A[y].size(); j++) ~~^~~~~~~~~~~~~