Compilare: main.cpp: In function 'void dfs1(int, std::vector<std::vector<int> >&)': main.cpp:12:29: 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: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 j = 0 ; j < GT[start].size() ; j ++ ){ | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:63:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for(int i = 0 ; i < conex.size() ; i ++ ) | ~~^~~~~~~~~~~~~~ main.cpp:67:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for(int j = 0 ; j < conex[i].size() ; j ++ ) | ~~^~~~~~~~~~~~~~~~~ main.cpp:67:18: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 67 | for(int j = 0 ; j < conex[i].size() ; j ++ ) | ^~~ main.cpp:69:20: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 69 | cout<<'\n'; | ^~~~