File Difficulty Topics Date IsSolvedFirstTry Note
334. Increasing Triplet Subsequence medium
  • array
  • greedy
 April 16, 2024 true -
394. Decode String medium
  • stack/queue
 April 17, 2024 false -
649. Dota2 Senate medium
  • stack/queue
 April 18, 2024 false -
735. Asteroid Collision medium
  • stack/queue
 April 17, 2024 true -
933. Number of Recent Calls easy
  • stack/queue
 April 18, 2024 true Use queue to delete elements
1207. Unique Number of Occurrences easy
  • HashMap
 April 18, 2024 true -
2215. Find the Difference of Two Arrays easy
  • stack/queue
 April 18, 2024 true -
1657. Determine if Two Strings Are Close medium
  • HashMap
 April 19, 2024 true Count words and its frequency with dictionary
2352. Equal Row and Column Pairs medium
  • HashMap
 April 19, 2024 true -
Difficulty Amount
easy 3
medium 6