0_0_21752504_9386.cpp: In member function 'void Dijkstra::dijkstra(ll)': 0_0_21752504_9386.cpp:132:21: error: 'du' was not declared in this scope du[e.to]++; ^ 0_0_21752504_9386.cpp:137:21: error: 'du' was not declared in this scope du[e.to]=1; ^