Compilare: main.cpp: In function 'void bfs(int)': main.cpp:30:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int i=0; i<la[u].size(); i++) | ~^~~~~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:48:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for (int i=0; i<la[s].size(); i++) | ~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:83:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for (int i=0; i<result.size(); i++) | ~^~~~~~~~~~~~~~