public void init() {
Scanner scan = new Scanner(System.in);
n = scan.nextInt();
m = scan.nextInt();
for (int i = 0; i < n; i++) {
String input = scan.next();
record.add(input);
}
for (int i = 0; i < m; i++) {
String input = scan.next();
char[] charArray = input.toCharArray();
boolean isValid = false;
for (int j = 0; j < charArray.length; j++) {
char c = charArray[j];
for (char d = 'a'; d <= 'c'; d = (char) (d + 1)) {
if (d == c) continue;
charArray[j] = d;
if (record.contains(new String(charArray))) {
isValid = true;
break;
}
}
charArray[j] = c;
if (isValid) break;
}
if (isValid) System.out.println("YES");
else System.out.println("NO");
}
scan.close();
}
public synchronized void messageReceived(int to, Message m) {
DrainMsg mhMsg = (DrainMsg) m;
log.debug(
"incoming: localDest: "
+ to
+ " type:"
+ mhMsg.get_type()
+ " hops:"
+ (16 - mhMsg.get_ttl())
+ " seqNo:"
+ mhMsg.get_seqNo()
+ " source:"
+ mhMsg.get_source()
+ " finalDest:"
+ mhMsg.get_dest());
// lets assume that the network cannot buffer more than 25 drain msgs from a single source at a
// time (should be more than reasonable)
if (seqNos.containsKey(new Integer(mhMsg.get_source()))) {
int oldSeqNo = ((Integer) seqNos.get(new Integer(mhMsg.get_source()))).intValue();
int upperBound = mhMsg.get_seqNo() + 25;
int wrappedUpperBound = 25 - (255 - mhMsg.get_seqNo());
if ((oldSeqNo >= mhMsg.get_seqNo() && oldSeqNo < upperBound)
|| (oldSeqNo >= 0 && oldSeqNo < wrappedUpperBound)) {
log.debug(
"Dropping message from "
+ mhMsg.get_source()
+ " with duplicate seqNo: "
+ mhMsg.get_seqNo());
return;
}
}
seqNos.put(new Integer(mhMsg.get_source()), new Integer(mhMsg.get_seqNo()));
if (to != spAddr && to != MoteIF.TOS_BCAST_ADDR && to != TOS_UART_ADDR) {
log.debug("Dropping message not for me.");
return;
}
HashSet promiscuousSet = (HashSet) idTable.get(new Integer(BCAST_ID));
HashSet listenerSet = (HashSet) idTable.get(new Integer(mhMsg.get_type()));
if (listenerSet != null && promiscuousSet != null) {
listenerSet.addAll(promiscuousSet);
} else if (listenerSet == null && promiscuousSet != null) {
listenerSet = promiscuousSet;
}
if (listenerSet == null) {
log.debug("No Listener for type: " + mhMsg.get_type());
return;
}
for (Iterator it = listenerSet.iterator(); it.hasNext(); ) {
MessageListener ml = (MessageListener) it.next();
ml.messageReceived(to, mhMsg);
}
}
private void addDependencies(HashSet<byte[]> deps, CommandData data) {
for (byte[] dep : data.dependencies) {
deps.add(dep);
}
for (byte[] dep : data.runbundles) {
deps.add(dep);
}
}
public void deregisterListener(int id, MessageListener m) {
HashSet listenerSet = (HashSet) idTable.get(new Integer(id));
if (listenerSet == null) {
throw new IllegalArgumentException("No listeners registered for message type " + id);
}
listenerSet.remove(m);
}
public void registerListener(int id, MessageListener m) {
HashSet listenerSet = (HashSet) idTable.get(new Integer(id));
if (listenerSet == null) {
listenerSet = new HashSet();
idTable.put(new Integer(id), listenerSet);
}
listenerSet.add(m);
log.info("New Listener for id=" + id);
}
/**
* initial the end node set, if the end node is intersect, add it directly or we find the end
* node's edge's entrance(s)
*
* @param nodeId
* @return
*/
public static HashSet<Long> initialEndSet(long nodeId) {
HashSet<Long> endSet = new HashSet<Long>();
NodeInfo end = OSMData.nodeHashMap.get(nodeId);
// initial start end set
if (end.isIntersect()) {
endSet.add(nodeId);
} else {
EdgeInfo edge = end.getOnEdgeList().getFirst();
if (!edge.isOneway()) {
endSet.add(edge.getEndNode());
}
endSet.add(edge.getStartNode());
}
return endSet;
}
/**
* Garbage collect repository
*
* @throws Exception
*/
public void gc() throws Exception {
HashSet<byte[]> deps = new HashSet<byte[]>();
// deps.add(SERVICE_JAR_FILE);
for (File cmd : commandDir.listFiles()) {
CommandData data = getData(CommandData.class, cmd);
addDependencies(deps, data);
}
for (File service : serviceDir.listFiles()) {
File dataFile = new File(service, "data");
ServiceData data = getData(ServiceData.class, dataFile);
addDependencies(deps, data);
}
int count = 0;
for (File f : repoDir.listFiles()) {
String name = f.getName();
if (!deps.contains(name)) {
if (!name.endsWith(".json")
|| !deps.contains(name.substring(0, name.length() - ".json".length()))) { // Remove
// json
// files
// only
// if
// the
// bin
// is
// going
// as
// well
f.delete();
count++;
} else {
}
}
}
System.out.format("Garbage collection done (%d file(s) removed)%n", count);
}
/**
* routing using A* algorithm with fibonacci heap basically same as routingAStar function
*
* @param startNode
* @param endNode
* @param startTime
* @param pathNodeList return path
* @return
*/
public static double routingAStarFibonacci(
long startNode, long endNode, int startTime, int dayIndex, ArrayList<Long> pathNodeList) {
System.out.println("start finding the path...");
int debug = 0;
double totalCost = -1;
try {
// test store transversal nodes
// HashSet<Long> transversalSet = new HashSet<Long>();
if (!OSMData.nodeHashMap.containsKey(startNode)
|| !OSMData.nodeHashMap.containsKey(endNode)) {
System.err.println("cannot find start or end node!");
return -1;
}
if (startNode == endNode) {
System.out.println("start node is the same as end node.");
return 0;
}
HashSet<Long> closedSet = new HashSet<Long>();
HashMap<Long, FibonacciHeapNode<NodeInfoHelper>> nodeHelperCache =
new HashMap<Long, FibonacciHeapNode<NodeInfoHelper>>();
FibonacciHeap<NodeInfoHelper> openSet = initialStartSet(startNode, endNode, nodeHelperCache);
HashSet<Long> endSet = initialEndSet(endNode);
NodeInfoHelper current = null;
FibonacciHeapNode<NodeInfoHelper> fCurrent = null;
while (!openSet.isEmpty()) {
// remove current from openset
fCurrent = openSet.min();
openSet.removeMin();
current = fCurrent.getData();
// if(!transversalSet.contains(current.getNodeId()))
// transversalSet.add(current.getNodeId());
long nodeId = current.getNodeId();
// add current to closedset
closedSet.add(nodeId);
if (endSet.contains(nodeId)) { // find the destination
current = current.getEndNodeHelper(endNode);
totalCost = current.getCost();
break;
}
// for time dependent routing
int timeIndex =
startTime
+ (int)
(current.getCost() / OSMParam.SECOND_PER_MINUTE / OSMRouteParam.TIME_INTERVAL);
if (timeIndex
> OSMRouteParam.TIME_RANGE
- 1) // time [6am - 9 pm], we regard times after 9pm as constant edge weights
timeIndex = OSMRouteParam.TIME_RANGE - 1;
LinkedList<ToNodeInfo> adjNodeList = OSMData.adjListHashMap.get(nodeId);
if (adjNodeList == null) continue; // this node cannot go anywhere
double arriveTime = current.getCost();
// for each neighbor in neighbor_nodes(current)
for (ToNodeInfo toNode : adjNodeList) {
debug++;
long toNodeId = toNode.getNodeId();
int travelTime;
if (toNode.isFix()) // fix time
travelTime = toNode.getTravelTime();
else // fetch from time array
travelTime = toNode.getSpecificTravelTime(dayIndex, timeIndex);
// tentative_g_score := g_score[current] + dist_between(current,neighbor)
double costTime = arriveTime + (double) travelTime / OSMParam.MILLI_PER_SECOND;
// tentative_f_score := tentative_g_score + heuristic_cost_estimate(neighbor, goal)
double heuristicTime = estimateHeuristic(toNodeId, endNode);
double totalCostTime = costTime + heuristicTime;
// if neighbor in closedset and tentative_f_score >= f_score[neighbor]
if (closedSet.contains(toNodeId)
&& nodeHelperCache.get(toNodeId).getData().getTotalCost() <= totalCostTime) {
continue;
}
NodeInfoHelper node = null;
FibonacciHeapNode<NodeInfoHelper> fNode = null;
// if neighbor not in openset or tentative_f_score < f_score[neighbor]
if (!nodeHelperCache.containsKey(toNodeId)) { // neighbor not in openset
// create new one
node = new NodeInfoHelper(toNodeId);
node.setCost(costTime);
node.setHeuristic(heuristicTime);
node.setParentId(nodeId);
fNode = new FibonacciHeapNode<NodeInfoHelper>(node);
openSet.insert(fNode, node.getTotalCost());
nodeHelperCache.put(node.getNodeId(), fNode);
} else if (nodeHelperCache.get(toNodeId).getData().getTotalCost()
> totalCostTime) { // neighbor in openset
fNode = nodeHelperCache.get(toNodeId);
node = fNode.getData();
// update information
node.setCost(costTime);
node.setHeuristic(heuristicTime);
node.setParentId(nodeId);
if (closedSet.contains(toNodeId)) { // neighbor in closeset
closedSet.remove(toNodeId); // remove neighbor form colseset
openSet.insert(fNode, node.getTotalCost());
} else { // neighbor in openset, decreaseKey
openSet.decreaseKey(fNode, node.getTotalCost());
}
}
}
}
if (totalCost != -1) {
long traceNodeId = current.getNodeId();
pathNodeList.add(traceNodeId); // add end node
traceNodeId = current.getParentId();
while (traceNodeId != 0) {
pathNodeList.add(traceNodeId); // add node
fCurrent = nodeHelperCache.get(traceNodeId);
current = fCurrent.getData();
traceNodeId = current.getParentId();
}
Collections.reverse(pathNodeList); // reverse the path list
System.out.println("find the path successful!");
} else {
System.out.println("can not find the path!");
}
// OSMOutput.generateTransversalNodeKML(transversalSet, nodeHashMap);
} catch (Exception e) {
e.printStackTrace();
System.err.println(
"tdsp: debug code " + debug + ", start node " + startNode + ", end node " + endNode);
}
return totalCost;
}
public boolean isNodeInReverseSet(long node) {
if (coveredReverseSet.contains(node)) return true;
else return false;
}
public void addReverseNode(long node) {
coveredReverseSet.add(node);
}
@Override
public void run() {
// TODO Auto-generated method stub
PriorityQueue<NodeInfoHelper> openSet =
new PriorityQueue<NodeInfoHelper>(
10000,
new Comparator<NodeInfoHelper>() {
public int compare(NodeInfoHelper n1, NodeInfoHelper n2) {
return (int) (n1.getTotalCost() - n2.getTotalCost());
}
});
HashSet<Long> closedSet = new HashSet<Long>();
initialEndSet(startNode, endNode, openSet, nodeHelperCache);
NodeInfoHelper current = null;
// HashSet<Long> transversalSet = new HashSet<Long>();
while (!openSet.isEmpty()) {
// remove current from openset
current = openSet.poll();
long nodeId = current.getNodeId();
// transversalSet.add(nodeId);
// add current to closedset
closedSet.add(nodeId);
// check if forward searching finish
if (sharingData.isSearchingFinish()) break;
// add to reverse cover nodes, only add the nodes on the highway
if (current.getCurrentLevel() == 1) sharingData.addReverseNode(nodeId);
NodeInfo fromNodeInfo = OSMData.nodeHashMap.get(nodeId);
LinkedList<ToNodeInfo> adjNodeList = adjListHashMap.get(nodeId);
if (adjNodeList == null) continue; // this node cannot go anywhere
double arriveTime = current.getCost();
// for each neighbor in neighbor_nodes(current)
for (ToNodeInfo toNode : adjNodeList) {
long toNodeId = toNode.getNodeId();
NodeInfo toNodeInfo = OSMData.nodeHashMap.get(toNodeId);
EdgeInfo edgeInfo = fromNodeInfo.getEdgeFromNodes(toNodeInfo);
// check if "highway" not found in param, add it
// String highway = edgeInfo.getHighway();
int level = 10;
if (OSMData.hierarchyHashMap.containsKey(edgeInfo.getHighway()))
level = OSMData.hierarchyHashMap.get(edgeInfo.getHighway());
// 1) always level up, e.g. currently in primary, never go secondary
// if(level > current.getCurrentLevel()) { // do not level down
// continue;
// }
// 2) keep on highway
if (current.getCurrentLevel() == 1 && level > 1) {
continue;
}
int travelTime = toNode.getMinTravelTime();
// tentative_g_score := g_score[current] + dist_between(current,neighbor)
double costTime = arriveTime + (double) travelTime / OSMParam.MILLI_PER_SECOND;
// tentative_f_score := tentative_g_score + heuristic_cost_estimate(neighbor, goal)
double heuristicTime = OSMRouting.estimateHeuristic(toNodeId, endNode);
double totalCostTime = costTime + heuristicTime;
// if neighbor in closedset and tentative_f_score >= f_score[neighbor]
if (closedSet.contains(toNodeId)
&& nodeHelperCache.get(toNodeId).getTotalCost() <= totalCostTime) {
continue;
}
NodeInfoHelper node = null;
// if neighbor not in openset or tentative_f_score < f_score[neighbor]
if (!nodeHelperCache.containsKey(toNodeId)) { // neighbor not in openset
node = new NodeInfoHelper(toNodeId);
nodeHelperCache.put(node.getNodeId(), node);
} else if (nodeHelperCache.get(toNodeId).getTotalCost()
> totalCostTime) { // neighbor in openset
node = nodeHelperCache.get(toNodeId);
if (closedSet.contains(toNodeId)) { // neighbor in closeset
closedSet.remove(toNodeId); // remove neighbor form colseset
} else {
openSet.remove(node);
}
}
// neighbor need update
if (node != null) {
node.setCost(costTime);
node.setHeuristic(heuristicTime);
node.setCurrentLevel(level);
node.setParentId(nodeId);
openSet.offer(node); // add neighbor to openset again
}
}
}
// OSMOutput.generateTransversalNodeKML(transversalSet, nodeHashMap, "reverse_transversal");
}
@Override
public void run() {
HashSet<Long> closedSet = new HashSet<Long>();
PriorityQueue<NodeInfoHelper> openSet =
OSMRouting.initialStartSet(startNode, endNode, startTime, dayIndex, nodeHelperCache);
NodeInfoHelper current = null;
// test
// HashSet<Long> transversalSet = new HashSet<Long>();
while (!openSet.isEmpty()) {
// remove current from openset
current = openSet.poll();
long nodeId = current.getNodeId();
// transversalSet.add(nodeId);
// add current to closedset
closedSet.add(nodeId);
// check reverse searching covering nodes
if (sharingData.isNodeInReverseSet(nodeId)) {
// we found a path, stop here
sharingData.addIntersect(nodeId);
if (sharingData.isSearchingFinish()) break;
else continue;
}
NodeInfo fromNodeInfo = OSMData.nodeHashMap.get(nodeId);
// for time dependent routing in forwarding search
int timeIndex =
startTime
+ (int)
(current.getCost() / OSMParam.SECOND_PER_MINUTE / OSMRouteParam.TIME_INTERVAL);
if (timeIndex
> OSMRouteParam.TIME_RANGE
- 1) // time [6am - 9 pm], we regard times after 9pm as constant edge weights
timeIndex = OSMRouteParam.TIME_RANGE - 1;
LinkedList<ToNodeInfo> adjNodeList = adjListHashMap.get(nodeId);
if (adjNodeList == null) continue; // this node cannot go anywhere
double arriveTime = current.getCost();
// for each neighbor in neighbor_nodes(current)
for (ToNodeInfo toNode : adjNodeList) {
long toNodeId = toNode.getNodeId();
NodeInfo toNodeInfo = OSMData.nodeHashMap.get(toNodeId);
EdgeInfo edgeInfo = fromNodeInfo.getEdgeFromNodes(toNodeInfo);
// check if "highway" not found in param, add it
// String highway = edgeInfo.getHighway();
int level = 10;
if (OSMData.hierarchyHashMap.containsKey(edgeInfo.getHighway()))
level = OSMData.hierarchyHashMap.get(edgeInfo.getHighway());
// 1) always level up, e.g. currently in primary, never go secondary
// if(level > current.getCurrentLevel()) { // do not level down
// continue;
// }
// 2) keep on highway
if (current.getCurrentLevel() == 1 && level > 1) {
continue;
}
int travelTime;
// forward searching is time dependent
if (toNode.isFix()) // fix time
travelTime = toNode.getTravelTime();
else // fetch from time array
travelTime = toNode.getSpecificTravelTime(dayIndex, timeIndex);
// tentative_g_score := g_score[current] + dist_between(current,neighbor)
double costTime = arriveTime + (double) travelTime / OSMParam.MILLI_PER_SECOND;
// tentative_f_score := tentative_g_score + heuristic_cost_estimate(neighbor, goal)
double heuristicTime = OSMRouting.estimateHeuristic(toNodeId, endNode);
double totalCostTime = costTime + heuristicTime;
// if neighbor in closedset and tentative_f_score >= f_score[neighbor]
if (closedSet.contains(toNodeId)
&& nodeHelperCache.get(toNodeId).getTotalCost() <= totalCostTime) {
continue;
}
NodeInfoHelper node = null;
// if neighbor not in openset or tentative_f_score < f_score[neighbor]
if (!nodeHelperCache.containsKey(toNodeId)) { // neighbor not in openset
node = new NodeInfoHelper(toNodeId);
nodeHelperCache.put(node.getNodeId(), node);
} else if (nodeHelperCache.get(toNodeId).getTotalCost()
> totalCostTime) { // neighbor in openset
node = nodeHelperCache.get(toNodeId);
if (closedSet.contains(toNodeId)) { // neighbor in closeset
closedSet.remove(toNodeId); // remove neighbor form colseset
} else {
openSet.remove(node);
}
}
// neighbor need update
if (node != null) {
node.setCost(costTime);
node.setHeuristic(heuristicTime);
node.setCurrentLevel(level);
node.setParentId(nodeId);
openSet.offer(node); // add neighbor to openset again
}
}
}
// test
// OSMOutput.generateTransversalNodeKML(transversalSet, "forward_transversal");
}
