Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:16:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for(int i = 0; i < T[u].size(); i ++){ | ~~^~~~~~~~~~~~~ main.cpp: In function 'void dfsHPD(int)': main.cpp:35:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(i = 0; i < T[u].size(); i ++){ | ~~^~~~~~~~~~~~~ main.cpp:48:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for(i = 0; i < T[u].size(); i ++){ | ~~^~~~~~~~~~~~~