Compilare: main.cpp: In member function 'void Graph::readGraph()': main.cpp:51:25: warning: overflow in conversion from 'long int' to 'std::vector<int>::value_type' {aka 'int'} changes value from '9223372036854775807' to '-1' [-Woverflow] 51 | aCost.push_back(LONG_MAX); | ^~~~~~~~ main.cpp:52:25: warning: overflow in conversion from 'long int' to 'std::vector<int>::value_type' {aka 'int'} changes value from '9223372036854775807' to '-1' [-Woverflow] 52 | bCost.push_back(LONG_MAX); | ^~~~~~~~ main.cpp:53:25: warning: overflow in conversion from 'long int' to 'std::vector<int>::value_type' {aka 'int'} changes value from '9223372036854775807' to '-1' [-Woverflow] 53 | cCost.push_back(LONG_MAX); | ^~~~~~~~ main.cpp: In member function 'void Graph::dijkstra(int, std::vector<int>&, std::vector<int>&)': main.cpp:76:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for (int i = 0; i < edges[node].size(); i ++) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:71:19: warning: unused variable 'c' [-Wunused-variable] 71 | long long c = heap.top().second; | ^ main.cpp: In member function 'void Graph::printRoad(int, int, std::vector<int>&)': main.cpp:120:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 120 | for (int i = 0; i < road.size(); i ++) { | ~~^~~~~~~~~~~~~ main.cpp: In member function 'void Graph::solve()': main.cpp:108:14: warning: 'x' may be used uninitialized [-Wmaybe-uninitialized] 108 | printRoad(x, c, cParent); | ~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:96:9: note: 'x' was declared here 96 | int x; | ^