Compilare: main.cpp: In function 'void bfs(int)': main.cpp:29:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(i=0;i<l[x].size();i++){ | ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:43:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 43 | for(i=0;i<n;i++) | ^~~ main.cpp:46:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 46 | bfs(s); | ^~~