Here are the top LeetCode problems frequently asked by IBM:

• 253. Meeting Rooms II
• 2645. Minimum Additions to Make Valid String
• 315. Count of Smaller Numbers After Self
• 121. Best Time to Buy and Sell Stock
• 845. Longest Mountain in Array
• 1319. Number of Operations to Make Network Connected
• 56. Merge Intervals
• 1167. Minimum Cost to Connect Sticks
• 2593. Find Score of an Array After Marking All Elements
• 1163. Last Substring in Lexicographical Order
• 724. Find Pivot Index
• 1539. Kth Missing Positive Number
• 88. Merge Sorted Array
• 2559. Count Vowel Strings in Ranges
• 1051. Height Checker
• 2580. Count Ways to Group Overlapping Ranges
• 1413. Minimum Value to Get Positive Step by Step Sum
• 1200. Minimum Absolute Difference
• 1331. Rank Transform of an Array
• 1487. Making File Names Unique
• 412. Fizz Buzz
• 1629. Slowest Key
• 1219. Path with Maximum Gold
• 1636. Sort Array by Increasing Frequency
• 1974. Minimum Time to Type Word Using Special Typewriter
• 1552. Magnetic Force Between Two Balls
• 453. Minimum Moves to Equal Array Elements
• 1535. Find the Winner of an Array Game
• 2506. Count Pairs Of Similar Strings
• 2182. Construct String With Repeat Limit
• 462. Minimum Moves to Equal Array Elements II
• 2696. Minimum String Length After Removing Substrings
• 3074. Apple Redistribution into Boxes
• 3613. Minimize Maximum Component Cost
• 1833. Maximum Ice Cream Bars
• 122. Best Time to Buy and Sell Stock II
• 252. Meeting Rooms

Note: Data is gathered from hundreds of real candidates' interview experiences and is updated monthly to ensure accuracy and timeliness.