Compilare: main.cpp: In member function 'std::pair<std::vector<Edge>, int> Graph::MSTKruskall()': main.cpp:424:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 424 | for(int j = 0; j < adj[i].size(); ++j) { | ~~^~~~~~~~~~~~~~~ main.cpp:438:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 438 | for(int i = 0; i < edges.size() && cnt <= E - 1; ++i) { | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'int Graph::minCostHamiltonianCircuit()': main.cpp:541:25: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] 541 | int minCost[1 << 18 + 5][20], costMatrix[20][20]; | ~~~^~~ main.cpp:570:12: warning: 'minimum' is used uninitialized in this function [-Wuninitialized] 570 | return minimum; | ^~~~~~~