Compilare: main.cpp: In function 'void dfs(int)': main.cpp:15:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | for(int i=0;i<adj[node].size();i++){ | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'bool verify()': main.cpp:26:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(int j=0;j<stackk.size();j++){ | ~^~~~~~~~~~~~~~ main.cpp:31:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int j=0;j<leaf.size();j++) | ~^~~~~~~~~~~~ main.cpp:32:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for(int k=0;k<adj[leaf[j]].size();k++) | ~^~~~~~~~~~~~~~~~~~~~ main.cpp:36:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int i=0;i<stackk.size();i++) | ~^~~~~~~~~~~~~~