Compilare: main.cpp: In member function 'void DijkstraHeap::downheap(int)': main.cpp:18:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | if(2*i>=v.size()) | ~~~^~~~~~~~~~ main.cpp:22:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | if(i*2+1<v.size()) | ~~~~~^~~~~~~~~ main.cpp: In member function 'void DijkstraHeap::tryUpdateDistance(int, int)': main.cpp:71:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | if(node>=dists.size()||node<=0) | ~~~~^~~~~~~~~~~~~~ main.cpp: In member function 'void DijkstraHeap::startAt(int)': main.cpp:99:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | if(node>=dists.size()||node<=0) | ~~~~^~~~~~~~~~~~~~ main.cpp:104:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 104 | for(int i=0;i<dists.size();i++) | ~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:140:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 140 | for(int i=0;i<arcs[x].size();i++) | ~^~~~~~~~~~~~~~~ main.cpp:150:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 150 | for(int i=2;i<dh.dists.size();i++) | ~^~~~~~~~~~~~~~~~