README.md

Skill Development Marathon

This page repository is used to track solutions published in the Telegram channel.

Solutions

Week 01

• Day 001
  • 🟢 2413. Smallest Even Multiple
  • 🟡 2396. Strictly Palindromic Number
• Day 002
  • 🟢 9. Palindrome Number
  • 🟡 7. Reverse Integer
• Day 003
  • 🟢 2119. A Number After a Double Reversal
  • 🟡 2442. Count Number of Distinct Integers After Reverse Operations
• Day 004
  • 🟢 1342. Number of Steps to Reduce a Number to Zero
  • 🟡 1641. Count Sorted Vowel Strings
• Day 005
  • 🟢 1480. Running Sum of 1d Array
  • 🟡 1551. Minimum Operations to Make Array Equal
• Day 006
  • 🟢 13. Roman to Integer
  • 🟡 12. Integer to Roman
• Day 007
  • 🟢 2520. Count the Digits That Divide a Number
  • 🟡 48. Rotate Image

Week 02

• Day 008
  • 🟢 2652. Sum Multiples
  • 🟡 2221. Find Triangular Sum of an Array
• Day 009
  • 🟢 1108. Defanging an IP Address
  • 🟡 535. Encode and Decode TinyURL
• Day 010
  • 🟢 2011. Final Value of Variable After Performing Operations
  • 🟡 189. Rotate Array
• Day 011
  • 🟢 1431. Kids With the Greatest Number of Candies
  • 🟡 2610. Convert an Array Into a 2D Array With Conditions
• Day 012
  • 🟢 1672. Richest Customer Wealth
  • 🟡 1476. Subrectangle Queries
• Day 013
  • 🟢 1929. Concatenation of Array
  • 🟡 1769. Minimum Number of Operations to Move All Balls to Each Box
• Day 014
  • 🟢 2574. Left and Right Sum Differences
  • 🟡 2161. Partition Array According to Given Pivot

Week 03

• Day 015
  • 🟢 2114. Maximum Number of Words Found in Sentences
  • 🟡 2433. Find The Original Array of Prefix Xor
• Day 016
  • 🟢 1486. XOR Operation in an Array
  • 🟡 2545. Sort the Students by Their Kth Score
• Day 017
  • 🟢 1528. Shuffle String
  • 🟡 1637. Widest Vertical Area Between Two Points Containing No Points
• Day 018
  • 🟢 1773. Count Items Matching a Rule
  • 🟡 2149. Rearrange Array Elements by Sign
• Day 019
  • 🟢 1684. Count the Number of Consistent Strings
  • 🟡 2482. Difference Between Ones and Zeros in Row and Column
• Day 020
  • 🟢 1720. Decode XORed Array
  • 🟡 2657. Find the Prefix Common Array of Two Arrays
• Day 021
  • 🟢 1290. Convert Binary Number in a Linked List to Integer
  • 🟡 2181. Merge Nodes in Between Zeros

Week 04

• Day 022
  • 🟢 876. Middle of the Linked List
  • 🟡 1669. Merge In Between Linked Lists
• Day 023
  • 🟢 206. Reverse Linked List
  • 🟡 237. Delete Node in a Linked List
• Day 024
  • 🟢 21. Merge Two Sorted Lists
  • 🟡 382. Linked List Random Node
• Day 025
  • 🟢 160. Intersection of Two Linked Lists
  • 🟡 2130. Maximum Twin Sum of a Linked List
• Day 026
  • 🟢 234. Palindrome Linked List
  • 🟡 1721. Swapping Nodes in a Linked List
• Day 027
  • 🟢 83. Remove Duplicates from Sorted List
  • 🟡 1472. Design Browser History
• Day 028
  • 🟢 705. Design HashSet
  • 🟡 24. Swap Nodes in Pairs

Week 05

• Day 029
  • 🟢 706. Design HashMap
  • 🟡 2326. Spiral Matrix IV
• Day 030
  • 🟢 141. Linked List Cycle
  • 🟡 142. Linked List Cycle II
• Day 031
  • 🟢 203. Remove Linked List Elements
  • 🟡 2487. Remove Nodes From Linked List
• Day 032
  • 🟢 771. Jewels and Stones
  • 🟡 2391. Minimum Amount of Time to Collect Garbage
• Day 033
  • 🟢 94. Binary Tree Inorder Traversal
  • 🟡 98. Validate Binary Search Tree
• Day 034
  • 🟢 144. Binary Tree Preorder Traversal
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• Day 035
  • 🟢 145. Binary Tree Postorder Traversal
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Week 6

• Day 036
  • 🟢 1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree
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• Day 037
  • 🟢 700. Search in a Binary Search Tree
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• Day 038
  • 🟢 617. Merge Two Binary Trees
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• Day 039
  • 🟢 226. Invert Binary Tree
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• Day 040
  • 🟢 2236. Root Equals Sum of Children
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• Day 041
  • 🟢 637. Average of Levels in Binary Tree
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• Day 042
  • 🟢 108. Convert Sorted Array to Binary Search Tree
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Week 7

• Day 043
  • 🟢 872. Leaf-Similar Trees
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• Day 044
  • 🟢 606. Construct String from Binary Tree
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• Day 045
  • 🟢 257. Binary Tree Paths
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• Day 046
  • 🟢 653. Two Sum IV - Input is a BST
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• Day 047
  • 🟢 783. Minimum Distance Between BST Nodes
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• Day 048
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• Day 049
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Week 8

• Day 050
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• Day 051
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• Day 054
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• Day 055
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• Day 056
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Week 9

• Day 057
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• Day 059
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• Day 061
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• Day 062
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• Day 063
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Week 10

• Day 064
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• Day 065
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• Day 066
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• Day 067
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• Day 068
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• Day 069
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• Day 070
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Week 11

• Day 071
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• Day 072
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• Day 073
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• Day 074
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• Day 075
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• Day 076
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• Day 077
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Week 12

• Day 078
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• Day 079
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• Day 080
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• Day 081
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• Day 082
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• Day 085
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Week 13

• Day 078
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• Day 086
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• Day 087
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• Day 088
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• Day 089
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• Day 090
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• Day 091
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Week 14

• Day 092
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• Day 093
  • 🟢 2367. Number of Arithmetic Triplets
  • 🟡 1630. Arithmetic Subarrays
• Day 094
  • 🟢 2373. Largest Local Values in a Matrix
  • 🟡 1817. Finding the Users Active Minutes
• Day 095
  • 🟢 804. Unique Morse Code Words
  • 🟡 2079. Watering Plants
• Day 096
  • 🟢 1732. Find the Highest Altitude
  • 🟡 1561. Maximum Number of Coins You Can Get
• Day 097
  • 🟢 1913. Maximum Product Difference Between Two Pairs
  • 🟡 1605. Find Valid Matrix Given Row and Column Sums
• Day 098
  • 🟢 2744. Find Maximum Number of String Pairs
  • 🟡 46. Permutations

Week 15

• Day 099
  • 🟢 1266. Minimum Time Visiting All Points
  • 🟡 890. Find and Replace Pattern