Compilare: main.cpp: In function 'int kruskal()': main.cpp:37:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for (int i = 0; i < edges.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'int reverse_kruskal(std::tuple<int, int, int>)': main.cpp:54:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for (int i = 0; i < apm.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:83:1: warning: control reaches end of non-void function [-Wreturn-type] 83 | } | ^