Compilare: main.cpp: In function 'void downheap(int)': main.cpp:20:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | if(st < h.size() && k[h[st]] < k[h[minim]]) minim = st; | ~~~^~~~~~~~~~ main.cpp:21:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | if(dr < h.size() && k[h[dr]] < k[h[minim]]) minim = dr; | ~~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:58:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(int i=0; i<graf[nod].size(); i++){ | ~^~~~~~~~~~~~~~~~~