refactor 2

fishercoder1534 · fishercoder1534 · commit 3319808ba9f3 · 2019-05-19T09:48:58.000-07:00
diff --git a/src/main/java/com/fishercoder/solutions/_2.java b/src/main/java/com/fishercoder/solutions/_2.java
@@ -40,35 +40,4 @@ public ListNode addTwoNumbers(ListNode l1, ListNode l2) {
         }
     }
 
-    public static class Solution2 {
-        public ListNode addTwoNumbers(ListNode l1, ListNode l2) {
-            ListNode pre = new ListNode(-1);
-            ListNode head = new ListNode(0);
-            pre.next = head;
-            int carry = 0;
-            while (l1 != null || l2 != null) {
-                int val = carry;
-                if (l1 != null) {
-                    val += l1.val;
-                    l1 = l1.next;
-                }
-                if (l2 != null) {
-                    val += l2.val;
-                    l2 = l2.next;
-                }
-                if (val >= 10) {
-                    val %= 10;
-                    carry = 1;
-                } else {
-                    carry = 0;
-                }
-                head.next = new ListNode(val);
-                head = head.next;
-            }
-            if (carry != 0) {
-                head.next = new ListNode(carry);
-            }
-            return pre.next.next;
-        }
-    }
 }
diff --git a/src/test/java/com/fishercoder/_2Test.java b/src/test/java/com/fishercoder/_2Test.java
@@ -10,23 +10,20 @@
 
 public class _2Test {
     private static _2.Solution1 solution1;
-    private static _2.Solution2 solution2;
     private static ListNode l1;
     private static ListNode l2;
     private static ListNode expected;
 
     @BeforeClass
     public static void setup() {
         solution1 = new _2.Solution1();
-        solution2 = new _2.Solution2();
     }
 
     @Test
     public void test1() {
         l1 = LinkedListUtils.contructLinkedList(new int[]{2, 4, 3});
         l2 = LinkedListUtils.contructLinkedList(new int[]{5, 6, 4});
         expected = LinkedListUtils.contructLinkedList(new int[]{7, 0, 8});
-        assertEquals(expected, solution2.addTwoNumbers(l1, l2));
         assertEquals(expected, solution1.addTwoNumbers(l1, l2));
     }
 
@@ -36,7 +33,6 @@ public void test2() {
         l2 = LinkedListUtils.contructLinkedList(new int[]{0});
         expected = LinkedListUtils.contructLinkedList(new int[]{1, 8});
         assertEquals(expected, solution1.addTwoNumbers(l1, l2));
-        assertEquals(expected, solution2.addTwoNumbers(l1, l2));
     }
 
     @Test
@@ -45,6 +41,5 @@ public void test3() {
         l2 = LinkedListUtils.contructLinkedList(new int[]{5});
         expected = LinkedListUtils.contructLinkedList(new int[]{0, 1});
         assertEquals(expected, solution1.addTwoNumbers(l1, l2));
-        assertEquals(expected, solution2.addTwoNumbers(l1, l2));
     }
 }
