Compilare: main.cpp: In function 'int main()': main.cpp:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(int i=0;i<v[nod].size();++i){ | ~^~~~~~~~~~~~~~ main.cpp:30:17: warning: this 'if' clause does not guard... [-Wmisleading-indentation] 30 | if(d[vecin]<2000000000); | ^~ main.cpp:31:21: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' 31 | s.erase({d[vecin],vecin}); | ^