RedQuark Tutorials

Code used in all my tutorials

LeetCode

#	Title	Difficulty	Tag	Blog	Video	Solution
34	Find First And Last Position Of Element In Sorted Array	Medium	Arrays, Binary Search	Blog		Java, Python, JavaScript, Kotlin
33	Search In Rotated Sorted Array	Medium	Arrays, Binary Search	Blog		Java, Python, JavaScript, Kotlin
32	Longest Valid Parentheses	Hard	String	Blog		Java, Python, JavaScript, Kotlin
31	Next Permutation	Medium	Arrays	Blog		Java, Python, JavaScript, Kotlin
30	Divide Two Integers	Hard	Sliding Window, Hashing, String	Blog		Java, Python, JavaScript, Kotlin
29	Divide Two Integers	Medium	Bit Manipulations	Blog		Java, Python, JavaScript, Kotlin
28	Implement StrStr	Easy	String, Sliding Window	Blog		Java, Python, JavaScript, Kotlin
27	Remove Element	Easy	Array	Blog		Java, Python, JavaScript, Kotlin
26	Remove Duplicates From Sorted Array	Easy	Array	Blog		Java, Python, JavaScript, Kotlin
25	Reverse Nodes In K Group	Hard	Linked List	Blog		Java, Python, JavaScript, Kotlin
24	Swap Nodes In Pairs	Medium	Linked List	Blog		Java, Python, JavaScript, Kotlin
23	Merge K Sorted Lists	Hard	Merge Sort, Divide and Conquer	Blog		Java, Python, JavaScript, Kotlin
22	Generate Parentheses	Medium	Recursion, Backtracking	Blog		Java, Python, JavaScript, Kotlin
21	Merge Two Sorted Lists	Easy	Linked List	Blog		Java, Python, JavaScript, Kotlin
20	Valid Parentheses	Easy	String, Stack	Blog		Java, Python, JavaScript, Kotlin
19	Remove Nth Node From End Of List	Medium	Linked List, Two Pointer Technique	Blog		Java, Python, JavaScript, Kotlin
18	3 Sum	Medium	Arrays	Blog		Java, Python, JavaScript, Kotlin
17	Letter Combinations Of A Phone Number	Medium	String, Recursion, BFS, DFS	Blog		Java, Python, JavaScript, Kotlin
16	3 Sum Closest	Medium	Arrays	Blog		Java, Python, JavaScript, Kotlin
15	3 Sum	Medium	Arrays	Blog		Java, Python, JavaScript, Kotlin
14	Longest Common Prefix	Easy	String, LCP	Blog		Java, Python, JavaScript, Kotlin
13	Roman To Integer	Easy	String	Blog		Java, Python, JavaScript, Kotlin
12	Integer To Roman	Medium	Array	Blog		Java, Python, JavaScript, Kotlin
11	Regular Expression Matching	Medium	Array	Blog		Java, Python, JavaScript, Kotlin
10	Regular Expression Matching	Hard	String, Dynamic Programming	Blog		Java, Python, JavaScript, Kotlin
9	Palindrome Number	Easy	Palindrome, Number	Blog		Java, Python, JavaScript, Kotlin
8	String To Integer (atoi)	Medium	String	Blog		Java, Python, JavaScript, Kotlin
7	Reverse Integer	Easy	Number	Blog		Java, Python, JavaScript, Kotlin
6	ZigZag Conversion	Medium	String	Blog		Java, Python, JavaScript, Kotlin
5	Longest Palindromic Substring	Medium	String, Manacher's Algorithm	Blog		Java, Python, JavaScript, Kotlin
4	Median Of Two Sorted Arrays	Hard	Arrays, Binary Search	Blog		Java, Python, JavaScript, Kotlin
3	Longest Substring Without Repeating Characters	Medium	String, Sliding Window	Blog		Java, Python, JavaScript, Kotlin
2	Add Two Numbers	Medium	Linked List	Blog		Java, Python, JavaScript, Kotlin
1	Two Sum	Easy	HashMap	Blog		Java, Python, JavaScript, Kotlin