Compilare: main.cpp: In function 'void dfs1(int, std::vector<int>*)': main.cpp:16:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for(int j = 0 ; j < G[start].size() ; j ++ ) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int, std::vector<int>*, std::vector<int>&)': main.cpp:27:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(int j = 0 ; j < GT[start].size() ; j ++ ) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:67:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for(int i = 0 ; i < comp.size() ; i ++ ) | ~~^~~~~~~~~~~~~ main.cpp:74:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for(int i = 0 ; i < comp.size() ; i ++ ) { | ~~^~~~~~~~~~~~~ main.cpp:76:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for(int j = 0 ; j < comp[i].size() ; j ++ ) | ~~^~~~~~~~~~~~~~~~ main.cpp:76:11: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 76 | for(int j = 0 ; j < comp[i].size() ; j ++ ) | ^~~ main.cpp:78:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 78 | cout<<'\n'; | ^~~~