Compilare: main.cpp: In function 'void dfs(int, bool*)': main.cpp:70:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<leg>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for(int i = 0; i < vv[x].size(); i++) { | ~~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int, std::pair<int, int>*, int, int)': main.cpp:87:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<leg>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | for(int i = 0; i < vv[x].size(); i++) { | ~~^~~~~~~~~~~~~~