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Problem Solving Challenge

Collection of problems and solutions of leetcode challenges in dart language.

🏷️	Problem	Solution	Lang	state
1.	Reverse String	Solution	Dart	Easy
2.	Valid Palindrome II	Solution	Dart	Easy
3.	Longest Common Prefix	Solution	Dart	Easy
4.	Roman to Integer	Solution	Dart	Easy
5.	Length of Last Word	Solution	Dart	Easy
6.	Valid Parentheses	Solution	Dart	Easy
7.	Valid Anagram	Solution	Dart	Easy
8.	Search Insert Position	Solution	Dart	Easy
9.	Pascal's Triangle	Solution	Dart	Easy
10.	Two Sum	Solution	Dart	Easy
11.	Add Binary	Solution	Dart	Easy
12.	Valid Palindrome	Solution	Dart	Easy
13.	Merge Sorted Array	Solution	Dart	Easy
14.	Single Number	Solution	Dart	Easy
15.	Excel Sheet Column Title	Solution	Dart	Easy
16.	Majority Element	Solution	Dart	Easy
17.	Contains Duplicate	Solution	Dart	Easy
18.	Power of Two	Solution	Dart	Easy
19.	Fizz Buzz	Solution	Dart	Easy
20.	Shuffle String	Solution	Dart	Easy
21.	First Unique Character in a String	Solution	Dart	Easy
22.	Missing Number	Solution	Dart	Easy
23.	Move Zeroes	Solution	Dart	Easy
24.	Power of Three	Solution	Dart	Easy
25.	Intersection of Two Arrays II	Solution	Dart	Easy
26.	Implement strStr()	Solution	Dart	Medium
27.	Maximum Subarray	Solution	Dart	Medium
28.	Longest Substring Without Repeating Characters	Solution	Dart	Medium
29.	Merge Intervals	Solution	Dart	Medium
30.	Next Permutation	Solution	Dart	Medium

LeetCode 75

LeetCode 75 is a curated list of 75 interview questions that are commonly asked in tech interviews. The list is divided into 15 topics, and each topic contains 5 questions. The questions are ordered by frequency of appearance in tech interviews. The questions are also ordered by difficulty, starting with the easiest questions first.

🏷️	#	Problem	Solution	Lang	Difficulty
1. Prefix Sum	1480	Running Sum of 1d Array	Solution	C#	Easy
2. Prefix Sum	724	Find Pivot Index	Solution	Dart	Easy
3. String	205	Isomorphic Strings	Solution	Dart	Easy
4. String	392	Is Subsequence	Solution	Dart	Easy
5. Linked List	21	Merge Two Sorted Lists	Solution	Dart	Easy
6. Linked List	206	Reverse Linked List	Solution	Dart	Easy
7. Linked List	876	Middle of the Linked List	Solution	Dart	Easy
8. Linked List	142	Linked List Cycle II	Solution	c++	Medium

DCC January 2023

DCC is a 30 days challenges of problems solving, each day has a problem with different difficulty, and each day has a different topic.

🏷️	#	Problem	Solution	Lang	Difficulty
1.	290	Word Pattern	Solution	Dart	Easy
2.	520	Detect Capital	Solution	Dart	Easy
3.	944	Delete Columns to Make Sorted	Solution	Dart	Easy