Please help me answer this simple coding question for an online judge platform. You can write the code in either Python3 or Java8 ; whichever one is easier and faster. Please also provide screenshots of your output after entering the inputs; it should match the sample inputs and outputs in the question. Thank You!
As part of a CS course, Alice just finished programming her robot to explore a graph having n nodes, labeled 1,2,... , n, and m directed edges. Initially the robot starts at node 1 While nodes may have several outgoing edges, Alice programmed the robot so that any node may have a forced move to a specific one of its neighbors. For example, it may be that node 5 has outgoing edges to neighbors 1, 4, and 6 but that Alice programs the robot so that if it leaves 5 it must go to neighbor 4 If operating correctly, the robot will always follow forced moves away from a node, and if reaching a node that does not have a forced move, the robot stops. Unfortunately, the robot is a bit buggy, and it might violate those rules and move to a randomly chosen neighbor of a node (whether or not there had been a designated forced move from that node). However, such a bug will occur at most once (and might never happen). Alice is having trouble debugging the robot, and would like your help to determine what are the possible nodes where the robot could stop and not move again. We consider two sample graphs, as given in Figures 1 and 2. In these figures, a red arrow indicate an edge corresponding to a forced move, while black arrows indicate edges to other neighbors. The circle around a node is red if it is a possible stopping node. As part of a CS course, Alice just finished programming her robot to explore a graph having n nodes, labeled 1,2,... , n, and m directed edges. Initially the robot starts at node 1 While nodes may have several outgoing edges, Alice programmed the robot so that any node may have a forced move to a specific one of its neighbors. For example, it may be that node 5 has outgoing edges to neighbors 1, 4, and 6 but that Alice programs the robot so that if it leaves 5 it must go to neighbor 4 If operating correctly, the robot will always follow forced moves away from a node, and if reaching a node that does not have a forced move, the robot stops. Unfortunately, the robot is a bit buggy, and it might violate those rules and move to a randomly chosen neighbor of a node (whether or not there had been a designated forced move from that node). However, such a bug will occur at most once (and might never happen). Alice is having trouble debugging the robot, and would like your help to determine what are the possible nodes where the robot could stop and not move again. We consider two sample graphs, as given in Figures 1 and 2. In these figures, a red arrow indicate an edge corresponding to a forced move, while black arrows indicate edges to other neighbors. The circle around a node is red if it is a possible stopping node
