Compilare: main.cpp:5:15: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] 5 | int d[1 << 18 + 5][20], cost[20][20]; | ~~~^~~ main.cpp: In member function 'std::pair<std::vector<Edge>, int> Graph::MSTKruskall()': main.cpp:425:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 425 | for(int j = 0; j < adj[i].size(); ++j) { | ~~^~~~~~~~~~~~~~~ main.cpp:439:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 439 | for(int i = 0; i < edges.size() && cnt <= E - 1; ++i) { | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'int Graph::minCostHamiltonianCircuit()': main.cpp:542:15: warning: unused variable 'y' [-Wunused-variable] 542 | int k, x, y, z, pow, n, m, i, j; | ^ main.cpp:542:18: warning: unused variable 'z' [-Wunused-variable] 542 | int k, x, y, z, pow, n, m, i, j; | ^ main.cpp:542:26: warning: unused variable 'n' [-Wunused-variable] 542 | int k, x, y, z, pow, n, m, i, j; | ^ main.cpp:542:29: warning: unused variable 'm' [-Wunused-variable] 542 | int k, x, y, z, pow, n, m, i, j; | ^