Compilare: main.cpp: In function 'double APM()': main.cpp:39:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (unsigned i = 2; i <= N; i++) ~~^~~~ main.cpp:55:45: warning: narrowing conversion of 'best_node' from 'int' to 'double' inside { } [-Wnarrowing] sol[++M] = { best_node, previ[best_node] }; ^ main.cpp:55:43: warning: narrowing conversion of 'previ[best_node]' from 'int' to 'double' inside { } [-Wnarrowing] sol[++M] = { best_node, previ[best_node] }; ~~~~~~~~~~~~~~~^