Compilare: main.cpp: In function 'double APM()': main.cpp:47:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (unsigned i = 2; i <= N; i++) ~~^~~~ main.cpp:63:20: warning: narrowing conversion of '(int)std::min<int>(best_node, previ[best_node])' from 'int' to 'double' inside { } [-Wnarrowing] sol[++M] = { min(best_node, previ[best_node]), max(best_node, previ[best_node]) }; ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:63:54: warning: narrowing conversion of '(int)std::max<int>(best_node, previ[best_node])' from 'int' to 'double' inside { } [-Wnarrowing] sol[++M] = { min(best_node, previ[best_node]), max(best_node, previ[best_node]) }; ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~