Compilare: main.cpp: In function 'void solveEuler(std::vector<int>*, std::vector<int>&, std::vector<int>&, std::vector<bool>&, std::vector<int>&, int)': main.cpp:11:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<edge[node].size(); i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void buildRMQ(std::vector<int>*, std::vector<int>&, std::vector<int>&)': main.cpp:24:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<euler.size(); i++) ~^~~~~~~~~~~~~ main.cpp: In function 'void down(std::vector<int>*, std::vector<bool>&, std::vector<int>&, int)': main.cpp:63:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<edge[node].size(); i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void solve(std::vector<int>*, std::vector<bool>&, std::vector<bool>&, std::vector<bool>&, std::vector<int>&, std::vector<bool>&, std::vector<std::pair<int, int> >*, int)': main.cpp:72:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<edge[node].size(); i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp:81:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<base[node].size(); i++){ ~^~~~~~~~~~~~~~~~~~