Main.java

@@ -307,6 +307,45 @@ public class Main {
 		
 	}
 
-	
+	public static LinkedList<LinkedList<Integer>> reversible(LinkedList<LinkedList<Integer>> elements,LinkedList<Integer> expect, int mod) {
 		
+		LinkedList<LinkedList<Integer>> result = new LinkedList<LinkedList<Integer>>();
+		LinkedList<Integer> temp = new LinkedList<Integer>();
+		
+		for(int i=1; i<mod; i++) {
+			result.add(elements.get(i));
+		}
+		
+		for(int i=mod; i<elements.size();i++) {
+			
+			temp = elements.get(i);
+			
+			if(temp.size() <= expect.size()) {
+				temp = nwdPoly(temp, expect, mod);
+			}
+			
+			if(temp.size() == 1 && temp.getFirst() == 1) {
+				result.add(elements.get(i));
+				continue;
+			}
+		}
+		
+		return result;
+	}
+
+	
+	public static LinkedList<Integer> nwdPoly(LinkedList<Integer> p1, LinkedList<Integer> orig, int mod) {
+		
+		LinkedList<Integer> temp = new LinkedList<Integer>(p1);
+		
+		while(p1.size()>1) {
+			if(p1.size() <= orig.size()) {
+				temp = dividePolynomials(orig,p1,mod);
+				orig = p1;
+				p1 = temp;
+			}
+			
+		}
+		return p1;
+	}		
 }