Compilare: main.cpp: In member function 'void Graph::printListOfNeighbours(std::ostream&)': main.cpp:74:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for (int i = 1; i < this->listOfNeighbours.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:77:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for (int j = 0; j < listOfNeighbours[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:163:39: warning: unused variable 'sourceNode' [-Wunused-variable] 163 | int numberOfNodes, numberOfEdges, sourceNode; | ^~~~~~~~~~ main.cpp:168:9: warning: unused variable 'distance' [-Wunused-variable] 168 | int distance[numberOfNodes + 1] = {0}; | ^~~~~~~~