title : "Index: Data Structures & Algorithms"
description : Personal coding problem tracker with solution links. A structured way to monitor progress and enhance problem- solving skills.
LC#
Title
Level
Soln
0001
Two Sum
Easy
Link
0002
Add Two Numbers
Medium
Link
0003
Longest Substring Without Repeating Characters
Medium
Link
0004
Median of Two Sorted Arrays
Hard
Link
0005
Longest Palindromic Substring
Medium
Link
0006
Zigzag Conversion
Medium
Link
0007
Reverse Integer
Medium
Link
0008
String to Integer (atoi)
Medium
Link
0009
Palindrome Number
Easy
Link
0010
Regular Expression Matching
Hard
Link
0011
Container With Most Water
Medium
Link
0012
Integer to Roman
Medium
Link
0013
Roman to Integer
Easy
Link
0014
Longest Common Prefix
Easy
Link
0015
3Sum
Medium
Link
0016
3Sum Closest
Medium
Link
0017
Letter Combinations of a Phone Number
Medium
Link
0018
4Sum
Medium
Link
0019
Remove Nth Node From End of List
Medium
Link
0020
Valid Parentheses
Easy
Link
0021
Merge Two Sorted Lists
Easy
Link
0022
Generate Parentheses
Medium
Link
0023
Merge k Sorted Lists
Hard
Link
0024
Swap Nodes in Pairs
Medium
Link
0025
Reverse Nodes in k-Group
Hard
Link
0026
Remove Duplicates from Sorted Array
Easy
Link
0027
Remove Element
Easy
Link
0028
Find the Index of the First Occurrence in a String
Easy
Link
0029
Divide Two Integers
Medium
Link
0030
Substring with Concatenation of All Words
Hard
Link