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Updated SinglyLinkedList #1477

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Merged
merged 5 commits into from
Sep 22, 2020
Merged

Updated SinglyLinkedList #1477

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093cc37
count singly linked list using recursion
realDuYuanChao Sep 22, 2020
e98693b
search element
realDuYuanChao Sep 22, 2020
cc0e351
search in singly linked list using recursion
realDuYuanChao Sep 22, 2020
e003f9a
get element at special index
realDuYuanChao Sep 22, 2020
d4e16ab
updating DIRECTORY.md
Sep 22, 2020
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get element at special index
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@realDuYuanChao
realDuYuanChao committed Sep 22, 2020
commit e003f9a2debe1889c5aad8e4ed7b9a7536ec191b
20 changes: 20 additions & 0 deletions DataStructures/Lists/SinglyLinkedList.java
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Original file line number Diff line number Diff line change
Expand Up @@ -211,6 +211,21 @@ public boolean search(int key) {
return false;
}

/**
* Return element at special index.
*
* @param index given index of element
* @return element at special index.
*/
public int getNth(int index) {
checkBounds(index, 0, size - 1);
Node cur = head;
for (int i = 0; i < index; ++i) {
cur = cur.next;
}
return cur.value;
}


@Override
public String toString() {
Expand Down Expand Up @@ -251,6 +266,11 @@ public static void main(String[] arg) {
&& list.search(1)
&& !list.search(100);

/* Test get function */
assert list.getNth(0) == 10
&& list.getNth(2) == 5
&& list.getNth(4) == 1;

/* Test delete function */
list.deleteHead();
list.deleteNth(1);
Expand Down