simurgh.cpp: In function 'std::vector<int> grafo(int)':
simurgh.cpp:37:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
37 | auto &[pp,idx]=q.front();
| ^
simurgh.cpp:50:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
50 | for(auto &[a,b]:p[pos]){
| ^
simurgh.cpp:68:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
68 | for(int j=1;j<arc[i].size();j++){
| ~^~~~~~~~~~~~~~
simurgh.cpp:74:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
74 | for(int j=0;j<arc[i].size();j++){
| ~^~~~~~~~~~~~~~
simurgh.cpp: In function 'std::vector<int> find_roads(int, std::vector<int>, std::vector<int>)':
simurgh.cpp:85:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
85 | for(int i=0;i<u.size();i++){
| ~^~~~~~~~~
simurgh.cpp:95:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
95 | if(ans.size()==N-1)break;
| ~~~~~~~~~~^~~~~