Compilare: main.cpp: In function 'int32_t main()': main.cpp:46:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(ll i=0;i<v[x].size();i++) ~^~~~~~~~~~~~ main.cpp:46:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(ll i=0;i<v[x].size();i++) ^~~ main.cpp:51:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' q.pop(); ^ main.cpp:65:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(ll i=0;i<v[x].size();i++) ~^~~~~~~~~~~~