#leetcode-solution

Articles tagged with #leetcode-solution

[Solution]217. Contains Duplicate
Problem Problem_Link Solutions (time, space) O(n), O(n) class Solution { public boolean containsDuplicate(int[] nums) { // Create a HashMap to store the elements of the array HashMap<Integer, Integer> map = new HashMap<>(); ...
Feb 2, 20231 min read26
[Solution]189. Rotate Array
Problem Problem_Link Solutions (time, space) O(n), O(n) class Solution { public void rotate(int[] nums, int k) { int len = nums.length; int[] rtnNums = new int[len]; // Rotate elements for (int i = 0; i < len; i++...
Jan 6, 20233 min read28
[Solution]237. Delete Node in a Linked List
Problem Problem_Link Solutions (time, space) O(1), O(1) /** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode(int x) { val = x; } * } */ class Solution { public void deleteNod...
Dec 28, 20221 min read6
[Solution]1221. Split a String in Balanced Strings
Problem Problem_Link Solutions (time, space) count L and R O(n), O(1) class Solution { public int balancedStringSplit(String s) { int LRCounter = 0; int counter = 0; for (char i:s.toCharArray()){ LRCounter+= i...
Dec 27, 20221 min read6
[Solution]506. Relative Ranks
Problem Problem_Link Solutions (time, space) O(n), O(n) public class Solution { public String[] findRelativeRanks(int[] nums) { Integer[] index = new Integer[nums.length]; String[] result = new String[nums.length]; for (i...
Dec 21, 20222 min read20
[Solution]1009. Complement of Base 10 Integer
Problem Problem_Link Solutions (time, space) bit calculation with JAVA method bit calculation with bitwise operator I solved with JAVA method. But, this problem is asking, "Do you know bitwise? Do you know how computer save data?" bit calculation w...
Dec 2, 20222 min read23