hamburg.cpp: In function 'void dfs(std::vector<std::pair<std::pair<long long int, long long int>, std::pair<long long int, long long int> > >, long long int)':
hamburg.cpp:18:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
18 | for(int i=0;i<ans.size();i++){
| ~^~~~~~~~~~~
hamburg.cpp:27:21: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
27 | while(ans.size()<K){
| ~~~~~~~~~~^~
hamburg.cpp:30:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
30 | for(int i=0;i<ans.size();i++){
| ~^~~~~~~~~~~
hamburg.cpp:37:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
37 | for(int i=0;i<vr.size();i++){
| ~^~~~~~~~~~
hamburg.cpp:41:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
41 | for(int i=0;i<vr.size();i++){
| ~^~~~~~~~~~
hamburg.cpp:49:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
49 | for(int i=0;i<nvr.size();i++){
| ~^~~~~~~~~~~
hamburg.cpp:54:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
54 | for(int i=0;i<nvr.size();i++){
| ~^~~~~~~~~~~
hamburg.cpp:61:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
61 | for(int i=0;i<vr.size();i++){
| ~^~~~~~~~~~