Compilare: main.cpp: In function 'int main()': main.cpp:197:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 197 | for (int i = 0; i < pathA.size(); ++i) { | ~~^~~~~~~~~~~~~~ main.cpp:205:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 205 | for (int i = 0; i < pathB.size(); ++i) { | ~~^~~~~~~~~~~~~~ main.cpp:213:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 213 | for (int i = 0; i < pathC.size(); ++i) { | ~~^~~~~~~~~~~~~~ main.cpp:189:43: warning: 'X' may be used uninitialized [-Wmaybe-uninitialized] 189 | while (node_3_dijkstra.first[current] != current) { main.cpp:156:9: note: 'X' was declared here 156 | int X; | ^