L E E T C O D E

# LICENSE
You are free to use, adapt, and share the written content / format / logging style under Creative Commons Attribution 4.0 International License (CC BY 4.0), provided attribution is given. See the individual license files for full text (https://github.com/B-Salinas/leetcode/blob/main/LICENSE). 

Happy Leeting! ☺︎ 

---

LEGEND
[ ] note container
 *   not in leetcode practice history
 w   weekly contest + ###
 b   biweekly contest + ###

easy/
  ├─── 0001. Two Sum
  │          ├─── 2021-03-25: WRONG ANSWER
  │          ├─── 2021-03-25: WRONG ANSWER
  │          ├─── 2021-03-25: 76 ms   | 38.5 MB
  │          ├─── 2021-06-23: 6880 ms | 14.7 MB
  │          ├─── 2021-06-23: 112 ms  | 39.3 MB
  │          ├─── 2022-02-09: WRONG ANSWER
  │          ├─── 2023-02-08: OUTPUT LIMIT EXCEEDED
  │          ├─── 2023-02-08: 140 ms  | 42.5 MB 
  │          ├─── 2023-02-08: 125 ms  | 42.1 MB
  │          ├─── 2023-07-04: TIME LIMIT EXCEEDED
  │          ├─── 2023-07-04: 128 ms  | 41.8 MB
  │          ├─── 2024-09-02: 103 ms  | 49.8 MB
  │          ├─── 2024-09-02: 56 ms   | 51.6 MB
  │          ├─── 2024-09-02: 60 ms   | 52.3 MB
  │          ├─── 2025-09-26: WRONG ANSWER
  │          ├─── 2025-09-26: WRONG ANSWER
  │          ├─── 2025-09-26: 33 ms   | 54.4 MB
  │
  ├─── 0020. Valid Parenthese
  │          ├─── 2021-06-23: WRONG ANSWER
  │          ├─── 2021-06-23: TIME LIMIT EXCEEDED
  │          ├─── 2021-06-23: RUNTIME ERROR
  │          ├─── 2021-06-23: WRONG ANSWER
  │          ├─── 2021-06-23: WRONG ANSWER
  │          ├─── 2021-06-24: WRONG ANSWER
  │
  ├─── 0069. Sqrt(x)
  │          ├─── 2025-09-26: WRONG ANSWER
  │          ├─── 2025-09-26: WRONG ANSWER
  │
  ├─── 0070. Climbing Stairs
  │          ├─── 2024-09-17: 48 ms   | 48.5 MB
  │          ├─── 2025-09-17: 58 ms   | 49.4 MB
  │          ├─── 2025-09-18: WRONG ANSWER
  │          ├─── 2025-09-18: 42 ms   | 48.7 MB
  │
  ├─── 0108. Convert Sorted Array to Binary Search Tree
  │          ├─── 2024-09-02: 58 ms | 52.5 MB
  │          ├─── 2024-09-20: 58 ms | 52.4 MB
  │
  ├─── 0195. Tenth Line
  │          ├─── 2025-09-26: WRONG ANSWER
  │          ├─── 2025-09-26: WRONG ANSWER
  │
  ├─── 0217. Contains Duplicate
  │          ├─── 2025-09-26: 21 ms | 71.1 MB
  │
  ├─── 0448. Find All Numbers Disappeared in an Array
  │          ├─── 2021-06-23: 6660 ms | 50.1 MB
  │          ├─── 2021-06-23: WRONG ANSWER
  │          ├─── 2021-06-23: TIME LIMIT EXCEEDED
  │
  ├─── 0509. Fibonacci Number
  │          ├─── 2024-09-20: 58 ms | 49.1 MB
  │
  ├─── 0724. [*] Find Pivot Index
  │
  ├─── 1137. N-th Tribonacci Number
  │          ├─── 2023-10-11: TIME LIMIT EXCEEDED
  │          ├─── 2023-10-11: RUNTIME ERROR
  │          ├─── 2024-09-20: TIME LIMIT EXCEEDED
  │          ├─── 2024-09-20: 48 ms | 48.8 MB
  │          ├─── 2024-09-20: 41 ms | 48.6 MB
  │
  ├─── 1480. [*] Running Sum of 1D Array
  │
  ├─── 2235. Add Two Integers
  │          ├─── 2023-07-04: 52 ms | 41.7 MB
  │          ├─── 2023-07-04: 65 ms | 42 MB
  │
  └─── 2595. [w337] Number of Even and Odd Bits 

medium/
  ├─── 0002. Add Two Numbers
  │          ├─── 2025-09-29: RUNTIME ERROR
  │          ├─── 2025-09-29: RUNTIME ERROR
  │          ├─── 2025-09-29: RUNTIME ERROR
  │          ├─── 2025-09-29: WRONG ANSWER
  │          ├─── 2025-09-29: WRONG ANSWER
  │          ├─── 2025-09-29: 7 ms | 18 MB
  │          ├─── 2025-09-30: WRONG ANSWER
  │          ├─── 2025-09-30: RUNTIME ERROR
  │          ├─── 2025-09-30: 7 ms | 17.7 MB
  │
  ├─── 0050. Pow(x,n)
  │
  ├─── 0109. [*] Convert Sorted List to Binary Search Tree
  │
  ├─── 0192. Word Frequency
  │
  ├─── 1813. Sentence Similarity III
  │
  ├─── 2516. Take K of Each Character From Left and Right
  │
  ├─── 2596. [w337] Check Knight Tour Configuration 
  │
  ├─── 2597. [w337] The Number of Beautiful Subsets 
  │
  ├─── 2598. [w337] Smallest Missung Non-negative Integer After Operations
  │
  └─── 2601. Prime Subtraction Operation

hard/
  └─── 0214. [*] Shortest Palindrome