Compilare: main.cpp: In function 'void minSpanningTree()': main.cpp:46:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for (int i = 0; i < G[muchie_curenta.to].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:78:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 78 | for (int j = 0; j < capete_muchie[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~