Compilare: main.cpp: In function 'void dfs(int)': main.cpp:12:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for(int i=0;i<L[k].size();i++) | ~^~~~~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:33:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for (int j=1 ; j < L[i].size() ; j++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:42:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 42 | for(int i=n;i>0;i--) | ^~~ main.cpp:44:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 44 | g<<'\n'; | ^