Leetcode-Challenge

June Leetcoding Challenge 2021

Day	Name of Problem	Leetcode Link	Video Link	Code
12	Minimum Number of Refueling Stops	https://leetcode.com/problems/minimum-number-of-refueling-stops/	https://youtu.be/4RgqAQFr9WQ	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/871.%20Minimum%20Number%20of%20Refueling%20Stops

May Leetcoding Challenge 2021

Day	Name of Problem	Leetcode Link	Video Link	Code
1	Prefix and Suffix Search	https://leetcode.com/problems/prefix-and-suffix-search/	https://youtu.be/U7fIQ7qAeuE	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/745.%20Prefix%20and%20Suffix%20Search
2	Course Schedule III	https://leetcode.com/problems/course-schedule-iii/	https://youtu.be/ey8FxYsFAMU	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/630.%20Course%20Schedule%20III
3	Running Sum of 1d Array	https://leetcode.com/problems/running-sum-of-1d-array/	https://youtu.be/3uMmKCZ_9Go	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1480.%20Running%20Sum%20of%201d%20Array
4	Non-decreasing Array	https://leetcode.com/problems/non-decreasing-array/	https://youtu.be/iL7oSNc3OXA	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/665.%20Non-decreasing%20Array
5	Jump Game II	https://leetcode.com/problems/jump-game-ii/	https://youtu.be/BRnRPLNGWIo	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/45.%20Jump%20Game%20II
6	Convert Sorted List to BST	https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree/	https://youtu.be/5IQF13nNq6A	https://github.com/Algorithms-Made-Easy/Tree/blob/master/Convert-Sorted-List-to-Binary-Search-Tree
7	Delete Operation for Two Strings	https://leetcode.com/problems/delete-operation-for-two-strings/	https://youtu.be/VSrsUkoG0bk	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/583.%20Delete%20Operation%20for%20Two%20Strings
8	Super Palindromes	https://leetcode.com/problems/super-palindromes/	https://youtu.be/iZ_wJbrlJz0	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/906.%20Super%20Palindromes
9	Construct Target Array With Multiple Sums	https://leetcode.com/problems/construct-target-array-with-multiple-sums/	https://youtu.be/h9t7JF50Mpw	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1354.%20Construct%20Target%20Array%20With%20Multiple%20Sums
10	Count Primes	https://leetcode.com/problems/count-primes/	https://youtu.be/5LMkddl2NCk	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/204.%20Count%20Primes
11	Maximum Points You Can Obtain from Cards	https://leetcode.com/problems/maximum-points-you-can-obtain-from-cards/	https://youtu.be/U0utLw_vWGM	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1423.%20Maximum%20Points%20You%20Can%20Obtain%20from%20Cards
12	Range Sum Query 2D - Immutable	https://leetcode.com/problems/range-sum-query-2d-immutable/	https://youtu.be/rkLDDxOcJxU	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/304.%20Range%20Sum%20Query%202D%20-%20Immutable
13	Ambiguous Coordinates	https://leetcode.com/problems/ambiguous-coordinates/	https://youtu.be/rt-lJS5nlOQ	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/816.%20Ambiguous%20Coordinates
14	Flatten Binary Tree to Linked List	https://leetcode.com/problems/flatten-binary-tree-to-linked-list/	https://youtu.be/NOKVBiJwkD0	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/114.%20Flatten%20Binary%20Tree%20to%20Linked%20List
15	Valid Number	https://leetcode.com/problems/valid-number/	https://youtu.be/0qac3ngAZmE	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/65.%20Valid%20Number
16	Binary Tree Cameras	https://leetcode.com/problems/binary-tree-cameras/	https://youtu.be/2Gh5WPjAgJk	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/968.%20Binary%20Tree%20Cameras
17	Longest String Chain	https://leetcode.com/problems/longest-string-chain/	https://youtu.be/pXG3uE_KqZM	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1048.%20Longest%20String%20Chain
18	Find Duplicate File in System	https://leetcode.com/problems/find-duplicate-file-in-system/	https://youtu.be/4KGl6PMwVXE	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/609.%20Find%20Duplicate%20File%20in%20System
19	Minimum Moves to Equal Array Elements II	https://leetcode.com/problems/minimum-moves-to-equal-array-elements-ii/	https://youtu.be/FGgL5QxZLno	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/462.%20Minimum%20Moves%20to%20Equal%20Array%20Elements%20II
20	Binary Tree Level Order Traversal	https://leetcode.com/problems/binary-tree-level-order-traversal/	https://youtu.be/vQrggrFMyp8	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/102.%20Binary%20Tree%20Level%20Order%20Traversal
21	Find and Replace Pattern	https://leetcode.com/problems/find-and-replace-pattern/	https://youtu.be/JbiV9l5AHQE	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/890.%20Find%20and%20Replace%20Pattern
22	N-Queens	https://leetcode.com/problems/n-queens/	https://youtu.be/jJMWhGKq3SM	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/51.%20N-Queens

April Leetcoding Challenge 2021

Day	Name of Problem	Leetcode Link	Video Link	Code
1	Palindrome Linked List	https://leetcode.com/problems/palindrome-linked-list/	https://youtu.be/Ll9ZbXaXqlQ	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/234.%20Palindrome%20Linked%20List
2	Ones and Zeroes	https://leetcode.com/problems/ones-and-zeroes/	https://youtu.be/qkUZ87NCYSw	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/474.%20Ones%20and%20Zeroes
3	Longest Valid Parentheses	https://leetcode.com/problems/longest-valid-parentheses/	https://youtu.be/VdQuwtEd10M	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/32.%20Longest%20Valid%20Parentheses
4	Design Circular Queue	https://leetcode.com/problems/design-circular-queue/	https://youtu.be/Q2YhZ6Pq0GQ	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/622.%20Design%20Circular%20Queue
5	Global and Local Inversions	https://leetcode.com/problems/global-and-local-inversions/	https://youtu.be/1QlP6cVLrII	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/775.%20Global%20and%20Local%20Inversions
6	Minimum Operations to Make Array Equal	https://leetcode.com/problems/minimum-operations-to-make-array-equal/	https://youtu.be/9aGx9hoIBjI	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1551.%20Minimum%20Operations%20to%20Make%20Array%20Equal
7	Determine if String Halves Are Alike	https://leetcode.com/problems/determine-if-string-halves-are-alike/	https://youtu.be/752uISt9sCs	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1704.%20Determine%20if%20String%20Halves%20Are%20Alike
8	Letter Combinations of a Phone Number	https://leetcode.com/problems/letter-combinations-of-a-phone-number/	https://youtu.be/Ydur1aYALc4	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/17.%20Letter%20Combinations%20of%20a%20Phone%20Number
9	Verifying an Alien Dictionary	https://leetcode.com/problems/verifying-an-alien-dictionary/	https://youtu.be/jK5a8T9q4pc	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/953.%20Verifying%20an%20Alien%20Dictionary
10	Deepest Leaves Sum	https://leetcode.com/problems/deepest-leaves-sum/	https://youtu.be/kgG2LuxzAHU	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1302.%20Deepest%20Leaves%20Sum
11	Longest Increasing Path in a Matrix	https://leetcode.com/problems/longest-increasing-path-in-a-matrix/	https://youtu.be/WiEqhI7v2FY	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/329.%20Longest%20Increasing%20Path%20in%20a%20Matrix
12	Beautiful Arrangement II	https://leetcode.com/problems/beautiful-arrangement-ii/	https://youtu.be/BiQlqgmJ0BM	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/667.%20Beautiful%20Arrangement%20II
13	Flatten Nested List Iterator	https://leetcode.com/problems/flatten-nested-list-iterator/	https://youtu.be/V-gPWPOyq8I	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/341.%20Flatten%20Nested%20List%20Iterator
14	Partition List	https://leetcode.com/problems/partition-list/	https://youtu.be/b4FeEwAGDtU	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/86.%20Partition%20List
15	Fibonacci Number	https://leetcode.com/problems/fibonacci-number/	https://youtu.be/kIzjdvU_QIU	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/509.%20Fibonacci%20Number
16	Remove All Adjacent Duplicates in String II	https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii/	https://youtu.be/RJpy4A7LJrs	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1209.%20Remove%20All%20Adjacent%20Duplicates%20in%20String%20II
17	Number of Submatrices That Sum to Target	https://leetcode.com/problems/number-of-submatrices-that-sum-to-target/	https://youtu.be/elADMOC_hDI	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1074.%20Number%20of%20Submatrices%20That%20Sum%20to%20Target
18	Remove Nth Node From End of List	https://leetcode.com/problems/remove-nth-node-from-end-of-list/	https://youtu.be/Kncuqqg_I18	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/19.%20Remove%20Nth%20Node%20From%20End%20of%20List
19	Combination Sum IV	https://leetcode.com/problems/combination-sum-iv/	https://youtu.be/GWqe_xfqxCA	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/377.%20Combination%20Sum%20IV
20	N-ary Tree Preorder Traversal	https://leetcode.com/problems/n-ary-tree-preorder-traversal/	https://youtu.be/DAIN1ZzvFeA	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/589.%20N-ary%20Tree%20Preorder%20Traversal
21	Triangle	https://leetcode.com/problems/triangle/	https://youtu.be/O2eaAdBpZBQ	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/120.%20Triangle
22	Brick Wall	https://leetcode.com/problems/brick-wall/	https://youtu.be/s4pN9Qfj8EY	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/554.%20Brick%20Wall
23	Count Binary Substrings	https://leetcode.com/problems/count-binary-substrings/	https://youtu.be/MGPHPadxhtQ	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/696.%20Count%20Binary%20Substrings
24	Critical Connections in a Network	https://leetcode.com/problems/critical-connections-in-a-network/	https://youtu.be/5xUdS0hclQ4	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1192.%20Critical%20Connections%20in%20a%20Network
25	Rotate Image	https://leetcode.com/problems/rotate-image/	https://youtu.be/bW_9pjcXP_4	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/48.%20Rotate%20Image
26	Furthest Building You Can Reach	https://leetcode.com/problems/furthest-building-you-can-reach/	https://youtu.be/wAxhnUhXvHE	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/1642.%20Furthest%20Building%20You%20Can%20Reach
27	Power of Three	https://leetcode.com/problems/power-of-three/	https://youtu.be/GNb8vSyw-WE	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/326.%20Power%20of%20Three
28	Unique Paths II	https://leetcode.com/problems/unique-paths-ii/	https://youtu.be/nZSXWXzn1aM	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/63.%20Unique%20Paths%20II
29	Find First and Last Position of Element in Sorted Array	https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/	https://youtu.be/c_HH9sakxpY	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/34.%20Find%20First%20and%20Last%20Position%20of%20Element%20in%20Sorted%20Array
30	Powerful Integers	https://leetcode.com/problems/powerful-integers/	https://youtu.be/dkvMSZ1tRXo	https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/970.%20Powerful%20Integers

Name		Name	Last commit message	Last commit date
Latest commit History 102 Commits
102. Binary Tree Level Order Traversal		102. Binary Tree Level Order Traversal
1048. Longest String Chain		1048. Longest String Chain
1074. Number of Submatrices That Sum to Target		1074. Number of Submatrices That Sum to Target
114. Flatten Binary Tree to Linked List		114. Flatten Binary Tree to Linked List
1143. Longest Common Subsequence		1143. Longest Common Subsequence
1192. Critical Connections in a Network		1192. Critical Connections in a Network
120. Triangle		120. Triangle
1209. Remove All Adjacent Duplicates in String II		1209. Remove All Adjacent Duplicates in String II
1302. Deepest Leaves Sum		1302. Deepest Leaves Sum
135. Candy		135. Candy
1354. Construct Target Array With Multiple Sums		1354. Construct Target Array With Multiple Sums
1423. Maximum Points You Can Obtain from Cards		1423. Maximum Points You Can Obtain from Cards
1480. Running Sum of 1d Array		1480. Running Sum of 1d Array
1551. Minimum Operations to Make Array Equal		1551. Minimum Operations to Make Array Equal
1642. Furthest Building You Can Reach		1642. Furthest Building You Can Reach
17. Letter Combinations of a Phone Number		17. Letter Combinations of a Phone Number
1704. Determine if String Halves Are Alike		1704. Determine if String Halves Are Alike
19. Remove Nth Node From End of List		19. Remove Nth Node From End of List
204. Count Primes		204. Count Primes
234. Palindrome Linked List		234. Palindrome Linked List
304. Range Sum Query 2D - Immutable		304. Range Sum Query 2D - Immutable
32. Longest Valid Parentheses		32. Longest Valid Parentheses
326. Power of Three		326. Power of Three
329. Longest Increasing Path in a Matrix		329. Longest Increasing Path in a Matrix
34. Find First and Last Position of Element in Sorted Array		34. Find First and Last Position of Element in Sorted Array
341. Flatten Nested List Iterator		341. Flatten Nested List Iterator
377. Combination Sum IV		377. Combination Sum IV
45. Jump Game II		45. Jump Game II
462. Minimum Moves to Equal Array Elements II		462. Minimum Moves to Equal Array Elements II
474. Ones and Zeroes		474. Ones and Zeroes
48. Rotate Image		48. Rotate Image
509. Fibonacci Number		509. Fibonacci Number
51. N-Queens		51. N-Queens
52. N-Queens II		52. N-Queens II
554. Brick Wall		554. Brick Wall
583. Delete Operation for Two Strings		583. Delete Operation for Two Strings
589. N-ary Tree Preorder Traversal		589. N-ary Tree Preorder Traversal
609. Find Duplicate File in System		609. Find Duplicate File in System
622. Design Circular Queue		622. Design Circular Queue
63. Unique Paths II		63. Unique Paths II
630. Course Schedule III		630. Course Schedule III
65. Valid Number		65. Valid Number
665. Non-decreasing Array		665. Non-decreasing Array
667. Beautiful Arrangement II		667. Beautiful Arrangement II
684. Redundant Connection		684. Redundant Connection
696. Count Binary Substrings		696. Count Binary Substrings
745. Prefix and Suffix Search		745. Prefix and Suffix Search
775. Global and Local Inversions		775. Global and Local Inversions
816. Ambiguous Coordinates		816. Ambiguous Coordinates
86. Partition List		86. Partition List
871. Minimum Number of Refueling Stops		871. Minimum Number of Refueling Stops
890. Find and Replace Pattern		890. Find and Replace Pattern
906. Super Palindromes		906. Super Palindromes
953. Verifying an Alien Dictionary		953. Verifying an Alien Dictionary
968. Binary Tree Cameras		968. Binary Tree Cameras
970. Powerful Integers		970. Powerful Integers
README.md		README.md

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Leetcode-Challenge

June Leetcoding Challenge 2021

May Leetcoding Challenge 2021

April Leetcoding Challenge 2021

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Leetcode-Challenge

June Leetcoding Challenge 2021

May Leetcoding Challenge 2021

April Leetcoding Challenge 2021

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