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Commitcde2462

Browse files
refactor 82
1 parentdfaae98 commitcde2462

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2 files changed

+43
-66
lines changed

2 files changed

+43
-66
lines changed

‎src/main/java/com/fishercoder/solutions/_82.java

Lines changed: 19 additions & 18 deletions
Original file line numberDiff line numberDiff line change
@@ -13,27 +13,28 @@
1313
1414
*/
1515
publicclass_82 {
16-
16+
publicstaticclassSolution1 {
1717
publicListNodedeleteDuplicates(ListNodehead) {
18-
if (head ==null) {
19-
returnhead;
18+
if (head ==null) {
19+
returnhead;
20+
}
21+
ListNodefakeHead =newListNode(-1);
22+
fakeHead.next =head;
23+
ListNodepre =fakeHead;
24+
ListNodecurr =head;
25+
while (curr !=null) {
26+
while (curr.next !=null &&curr.val ==curr.next.val) {
27+
curr =curr.next;
2028
}
21-
ListNodefakeHead =newListNode(-1);
22-
fakeHead.next =head;
23-
ListNodepre =fakeHead;
24-
ListNodecurr =head;
25-
while (curr !=null) {
26-
while (curr.next !=null &&curr.val ==curr.next.val) {
27-
curr =curr.next;
28-
}
29-
if (pre.next ==curr) {
30-
pre =pre.next;
31-
}else {
32-
pre.next =curr.next;
33-
}
34-
curr =curr.next;
29+
if (pre.next ==curr) {
30+
pre =pre.next;
31+
}else {
32+
pre.next =curr.next;
3533
}
36-
returnfakeHead.next;
34+
curr =curr.next;
35+
}
36+
returnfakeHead.next;
3737
}
38+
}
3839

3940
}
Lines changed: 24 additions & 48 deletions
Original file line numberDiff line numberDiff line change
@@ -1,58 +1,34 @@
11
packagecom.fishercoder;
22

33
importcom.fishercoder.common.classes.ListNode;
4+
importcom.fishercoder.common.utils.LinkedListUtils;
45
importcom.fishercoder.solutions._82;
56
importorg.junit.Assert;
7+
importorg.junit.BeforeClass;
68
importorg.junit.Test;
79

8-
/**
9-
* Created by fishercoder on 5/1/17.
10-
*/
1110
publicclass_82Test {
1211

13-
@Test
14-
publicvoidtest1() {
15-
ListNodehead =newListNode(1);
16-
head.next =newListNode(2);
17-
head.next.next =newListNode(3);
18-
head.next.next.next =newListNode(3);
19-
head.next.next.next.next =newListNode(4);
20-
head.next.next.next.next.next =newListNode(4);
21-
head.next.next.next.next.next.next =newListNode(5);
22-
23-
_82test =new_82();
24-
25-
ListNodeexpected =newListNode(1);
26-
expected.next =newListNode(2);
27-
expected.next.next =newListNode(5);
28-
29-
Assert.assertEquals(expected,test.deleteDuplicates(head));
30-
}
31-
32-
@Test
33-
publicvoidtest2() {
34-
ListNodehead =newListNode(1);
35-
head.next =newListNode(1);
36-
head.next.next =newListNode(1);
37-
head.next.next.next =newListNode(2);
38-
head.next.next.next.next =newListNode(3);
39-
40-
_82test =new_82();
41-
42-
ListNodeexpected =newListNode(2);
43-
expected.next =newListNode(3);
44-
45-
Assert.assertEquals(expected,test.deleteDuplicates(head));
46-
}
47-
48-
@Test
49-
publicvoidtest3() {
50-
ListNodehead =newListNode(1);
51-
head.next =newListNode(1);
52-
53-
_82test =new_82();
54-
55-
ListNodeexpected =null;
56-
Assert.assertEquals(expected,test.deleteDuplicates(head));
57-
}
12+
privatestatic_82.Solution1solution1;
13+
privatestaticListNodehead;
14+
privatestaticListNodeexpected;
15+
16+
@BeforeClass
17+
publicstaticvoidsetup() {
18+
solution1 =new_82.Solution1();
19+
}
20+
21+
@Test
22+
publicvoidtest1() {
23+
head =LinkedListUtils.contructLinkedList(newint[] {1,2,3,3,4,4,5});
24+
expected =LinkedListUtils.contructLinkedList(newint[] {1,2,5});
25+
Assert.assertEquals(expected,solution1.deleteDuplicates(head));
26+
}
27+
28+
@Test
29+
publicvoidtest2() {
30+
head =LinkedListUtils.contructLinkedList(newint[] {1,1,1,2,3});
31+
expected =LinkedListUtils.contructLinkedList(newint[] {2,3});
32+
Assert.assertEquals(expected,solution1.deleteDuplicates(head));
33+
}
5834
}

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