dungeons.cpp: In function 'void dfs(int, int, std::vector<int>, std::vector<int>)':
dungeons.cpp:22:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
22 | for(int i=0;i<adj[n].size();i++){
| ~^~~~~~~~~~~~~~
dungeons.cpp:30:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
30 | if(y!=s.size()){
| ~^~~~~~~~~~
dungeons.cpp: In function 'void init(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
dungeons.cpp:41:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
41 | for(int i=0;i<w.size();i++){
| ~^~~~~~~~~