supertrees.cpp: In function 'void dfs(int)':
supertrees.cpp:25:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
25 | for( int i = 0 ; i < k[u].size() ; i ++ ){
| ~~^~~~~~~~~~~~~
supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:56:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
56 | for( int j = 1 ; j < cz.size() ; j ++ ){
| ~~^~~~~~~~~~~
supertrees.cpp:61:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
61 | for( int j = 0 ; j < cz.size(); j ++ ){
| ~~^~~~~~~~~~~
supertrees.cpp:62:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
62 | for( int h = 0 ; h < cz.size(); h ++ ){
| ~~^~~~~~~~~~~
supertrees.cpp:80:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
80 | for( int j = 0 ; j < cz.size(); j ++ ){
| ~~^~~~~~~~~~~
supertrees.cpp:81:44: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
81 | for( int h = 0 ; h < cz.size(); h ++ ){
| ~~^~~~~~~~~~~
supertrees.cpp:97:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
97 | for( int j = 1 ; j < cz.size() ; j ++ ){
| ~~^~~~~~~~~~~
supertrees.cpp:102:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
102 | for( int j = 0 ; j < cz.size(); j ++ ){
| ~~^~~~~~~~~~~
supertrees.cpp:103:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
103 | for( int h = 0 ; h < cz.size(); h ++ ){
| ~~^~~~~~~~~~~
supertrees.cpp:121:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
121 | for( int j = 0 ; j < cz.size(); j ++ ){
| ~~^~~~~~~~~~~
supertrees.cpp:122:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
122 | for( int h = 0 ; h < cz.size(); h ++ ){
| ~~^~~~~~~~~~~