MohamedMetwalli5 / LeetCode-Solutions

✅🟨 These LeetCode solutions use both code and animations to address a wide range of problems.

What is this?

These LeetCode solutions are designed specifically for beginners, addressing many problems using code and animations.

If you like this project, please leave me a star. ★

Problem-Solving 💻

#	Title	Solution	Animation	Difficulty
2149	Rearrange Array Elements by Sign	Solution		Medium
98	Validate Binary Search Tree	Solution		Medium
1347	Minimum Number of Steps to Make Two Strings Anagram	Solution		Medium
204	Count Primes	Solution		Medium
19	Remove Nth Node From End of List	Solution		Medium
2125	Number of Laser Beams in a Bank	Solution		Medium
1630	Arithmetic Subarrays	Solution		Medium
1109	Corporate Flight Bookings	Solution		Medium
1769	Minimum Number of Operations to Move All Balls to Each Box	Solution		Medium
34	Find First and Last Position of Element in Sorted Array	Solution		Medium
187	Repeated DNA Sequences	Solution		Medium
378	Kth Smallest Element in a Sorted Matrix	Solution		Medium
560	Subarray Sum Equals K	Solution		Medium
2120	Execution of All Suffix Instructions Staying in a Grid	Solution		Medium
2043	Simple Bank System	Solution		Medium
148	Sort List	Solution		Medium
24	Swap Nodes in Pairs	Solution		Medium
2221	Find Triangular Sum of an Array	Solution		Medium
1529	Minimum Suffix Flips	Solution		Medium
287	Find the Duplicate Number	Solution		Medium
215	Kth Largest Element in an Array	Solution		Medium
229	Majority Element II	Solution		Medium
1508	Range Sum of Sorted Subarray Sums	Solution		Medium
398	Random Pick Index	Solution		Medium
1023	Camelcase Matching	Solution		Medium
1828	Queries on Number of Points Inside a Circle	Solution		Medium
1433	Check If a String Can Break Another String	Solution		Medium
7	Reverse Integer	Solution		Medium
1721	Swapping Nodes in a Linked List	Solution		Medium
1282	Group the People Given the Group Size They Belong To	Solution		Medium
1222	Queens That Can Attack the King	Solution		Medium
1352	Product of the Last K Numbers	Solution		Medium
763	Partition Labels	Solution		Medium
1669	Merge In Between Linked Lists	Solution		Medium
729	My Calendar I	Solution		Medium
142	Linked List Cycle II	Solution		Medium
1409	Queries on a Permutation With Key	Solution		Medium
701	Insert into a Binary Search Tree	Solution		Medium
380	Insert Delete GetRandom O(1)	Solution		Medium
49	Group Anagrams	Solution		Medium
477	Total Hamming Distance	Solution		Medium
665	Non-decreasing Array	Solution		Medium
1823	Find the Winner of the Circular Game	Solution		Medium
2130	Maximum Twin Sum of a Linked List	Solution		Medium
973	K Closest Points to Origin	Solution		Medium
1860	Incremental Memory Leak	Solution		Medium
442	Find All Duplicates in an Array	Solution		Medium
676	Implement Magic Dictionary	Solution		Medium
2095	Delete the Middle Node of a Linked List	Solution		Medium
921	Minimum Add to Make Parentheses Valid	Solution		Medium
384	Shuffle an Array	Solution		Medium
535	Encode and Decode TinyURL	Solution		Medium
1877	Minimize Maximum Pair Sum in Array	Solution		Medium
1551	Minimum Operations to Make Array Equal	Solution		Medium
985	Sum of Even Numbers After Queries	Solution		Medium
901	Online Stock Span	Solution		Medium
147	Insertion Sort List	Solution		Medium
347	Top K Frequent Elements	Solution		Medium
1381	Design a Stack With Increment Operation	Solution		Medium
56	Merge Intervals	Solution		Medium
1817	Finding the Users Active Minutes	Solution		Medium
1561	Maximum Number of Coins You Can Get	Solution		Medium
677	Map Sum Pairs	Solution		Medium
1305	All Elements in Two Binary Search Trees	Solution		Medium
207	Course Schedule	Solution		Medium
230	Kth Smallest Element in a BST	Solution		Medium
848	Shifting Letters	Solution		Medium
2161	Partition Array According to Given Pivot	Solution		Medium
1038	Binary Search Tree to Greater Sum Tree	Solution		Medium
382	Linked List Random Node	Solution		Medium
1315	Sum of Nodes with Even-Valued Grandparent	Solution		Medium
1929	Concatenation of Array	Solution		Easy
1920	Build Array from Permutation	Solution		Easy
1108	Defanging an IP Address	Solution		Easy
1512	Number of Good Pairs	Solution		Easy
2011	Final Value of Variable After Performing Operations	Solution		Easy
771	Jewels and Stones	Solution		Easy
1470	Shuffle the Array	Solution		Easy
1603	Design Parking System	Solution		Easy
1637	Widest Vertical Area Between Two Points Containing No Points	Solution		Easy
1672	Richest Customer Wealth	Solution		Easy
1431	Kids With the Greatest Number of Candies	Solution		Easy
1678	Goal Parser Interpretation	Solution		Easy
938	Range Sum of BST	Solution		Easy
1480	Running Sum of 1d Array	Solution		Easy
1365	How Many Numbers Are Smaller Than the Current Number	Solution		Easy
1281	Subtract the Product and Sum of Digits of an Integer	Solution		Easy
2114	Maximum Number of Words Found in Sentences	Solution		Easy
1221	Split a String in Balanced Strings	Solution		Easy
1688	Count of Matches in Tournament	Solution		Easy
1379	Find a Corresponding Node of a Binary Tree in a Clone of That Tree	Solution		Easy
1313	Decompress Run-Length Encoded List	Solution		Easy
1486	XOR Operation in an Array	Solution		Easy
1662	Check If Two String Arrays are Equivalent	Solution		Easy
1342	Number of Steps to Reduce a Number to Zero	Solution		Easy
1773	Count Items Matching a Rule	Solution		Easy
1528	Shuffle String	Solution		Easy
1816	Truncate Sentence	Solution		Easy
2236	Root Equals Sum of Children	Solution		Easy
2194	Cells in a Range on an Excel Sheet	Solution		Easy
2108	Find First Palindromic String in the Array	Solution		Easy
2325	Decode the Message	Solution		Easy
2006	Count Number of Pairs With Absolute Difference K	Solution		Easy
709	To Lower Case	Solution		Easy
1832	Check if the Sentence Is Pangram	Solution		Easy
557	Reverse Words in a String III	Solution		Easy
1859	Sorting the Sentence	Solution		Easy
1684	Count the Number of Consistent Strings	Solution		Easy
1732	Find the Highest Altitude	Solution		Easy
1572	Matrix Diagonal Sum	Solution		Easy
1913	Maximum Product Difference Between Two Pairs	Solution		Easy
1464	Maximum Product of Two Elements in an Array	Solution		Easy
1323	Maximum 69 Number	Solution		Easy
2315	Count Asterisks	Solution		Easy
2037	Minimum Number of Moves to Seat Everyone	Solution		Easy
832	Flipping an Image	Solution		Easy
1614	Maximum Nesting Depth of the Parentheses	Solution		Easy
1290	Convert Binary Number in a Linked List to Integer	Solution		Easy
1534	Count Good Triplets	Solution		Easy
1844	Replace All Digits with Characters	Solution		Easy
169	Majority Element	Solution		Easy