Compilare: main.cpp: In function 'void Solve()': main.cpp:97:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0;j < drumuri[i].size() - 1;++j) ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:109:12: warning: this 'if' clause does not guard... [-Wmisleading-indentation] else if(find(muc.begin(), muc.end(), make_pair(neck.e2, neck.e1)) != muc.end()) ^~ main.cpp:111:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' if(!viz[nr_max]) ^~