Compilare: main.cpp: In function 'void dfs1(int, std::vector<std::vector<int> >&)': main.cpp:12:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for(int j = 0 ; j < G[start].size() ; j ++ ){ | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int, std::vector<std::vector<int> >&, std::vector<int>&)': main.cpp:21:10: warning: this 'if' clause does not guard... [-Wmisleading-indentation] 21 | if(!viz[start]) | ^~ main.cpp:23:12: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' 23 | viz[start] = 1 ; | ^~~ main.cpp:24:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int j = 0 ; j < GT[start].size() ; j ++ ){ | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:62:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int i = 0 ; i < comp.size() ; i ++ ){ | ~~^~~~~~~~~~~~~ main.cpp:65:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for(int j = 0 ; j < comp[i].size() ; j ++ ) | ~~^~~~~~~~~~~~~~~~ main.cpp:65:20: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 65 | for(int j = 0 ; j < comp[i].size() ; j ++ ) | ^~~ main.cpp:67:23: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 67 | cout<<'\n'; | ^~~~