Leetcode solutions

Top Interview questions

Array:

Remove Duplicates from Sorted Array

• 2 ms

Solution

Best Time to Buy and Sell Stock II

• 1 ms

Solution

Rotate Array

• 4 ms

Solution

Contains Duplicate

• 12 ms

Solution

Single Number

• 8 ms

Solution

Intersection Of Two Arrays

• 4 ms

Solution

Plus One

• 0 ms (Your runtime beats 100.00 % of java submissions.)

Solution

Move Zeroes

• 3 ms (Your runtime beats 39.08 % of java submissions)

Solution

Two Sum

• 4 ms

Solution

Valid Sudoku (In progress)

• ? ms

Solution

Rotate Image (In progress)

• ? ms

Solution

Strings:

Reverse String

• 1 ms

Solution

Reverse Integer

• 4 ms

Solution

First Unique Character in a String

• 40 ms

Solution

Valid Anagram

• 1469 ms

Solution

String to Integer (atoi) (In progress)

• ? ms

Solution

Valid Palindrome

• 6 ms

Solution

Implement strStr

• 515 ms ("Your runtime beats 59.36 % of java submissions.")

Solution

Longest Common Prefix

• 1 ms

Solution

Linked List:

Delete Node In a LinkedList

• 0 ms

Solution

Remove Nth Node From End Of List

• 1 ms

Solution

Reverse Linked List

• 0 ms

Solution

Merge Two Sorted Lists

• 0 ms

Solution

Palindrome Linked List (repeat this task later)

• 5ms

Solution

Linked List Cycle

• 0ms (Your runtime beats 100.00 % of java submissions)

  Solution

Trees:

Maximum Depth Of Binary Tree

• 0 ms (Your runtime beats 100.00 % of java submissions)

Solution

Validate Binary Search Tree

• 1 ms (Your runtime beats 59.04 % of java submissions)

Solution

Symmetric Tree

• 0 ms (Your runtime beats 100.00 % of java submissions)

Solution

Binary Tree Level Order Traversal

• 0 ms (Your runtime beats 100.00 % of java submissions)

Solution