Compilare: main.cpp: In function 'void dijkstra()': main.cpp:24:38: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] 24 | if (!abs(qcost - cost[node]) <= eps) { | ^~ main.cpp:24:13: note: add parentheses around left hand side expression to silence this warning 24 | if (!abs(qcost - cost[node]) <= eps) { | ^~~~~~~~~~~~~~~~~~~~~~~~ | ( ) main.cpp:27:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for (int i = 0; i < v[node].size(); ++i) { | ~~^~~~~~~~~~~~~~~~