package aima.core.search.csp;
<BUG>import java.util.Deque;
import java.util.LinkedList;</BUG>
import java.util.Queue;
import aima.core.search.framework.QueueFactory;
public class AC3Strategy {

package aima.core.search.csp;
import java.util.Queue;
import aima.core.search.framework.QueueFactory;
public class AC3Strategy {
