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48 questions

OA Coding Set (Dictionary +
20 pts
Machine CodingCoding
Maximum Unique-Character Coverage With Non-Overlapping
20 pts
Machine CodingCoding
K-th Largest Element (0-indexed)
20 pts
Machine CodingCoding
Longest Vacation With PTO (flip
20 pts
Machine CodingCoding
Kth Largest Element in an
20 pts
Machine CodingCoding
Lowest Common Ancestor (LCA) of
20 pts
Machine CodingCoding
Binary Tree Side View (Left
20 pts
Machine CodingCoding
Maze / Grid Navigation with
20 pts
Machine CodingCoding
Find a Local Minimum (Valley)
20 pts
Machine CodingCoding
Lowest Common Ancestor (LCA)
20 pts
Machine CodingCoding
Maximum Size Subset With All
20 pts
Machine CodingCoding
Implement a Feature with Four
20 pts
Machine CodingCoding
Unique Characters
20 pts
Machine CodingCoding
Mouse and Cheese (Max Reward
20 pts
Machine CodingCoding
Weighted Random Picker
20 pts
Machine CodingCoding
Make Parentheses String Valid with
20 pts
Machine CodingCoding
Valid Palindrome After At Most
20 pts
Machine CodingCoding
Kth Largest Element in an
20 pts
Machine CodingCoding
AI Coding Maze: Preserve Start/End
20 pts
Machine CodingCoding
AI Coding Maze: Fix BFS
20 pts
Machine CodingCoding
AI Coding Maze: Add One-Way
20 pts
Machine CodingCoding
AI Coding Maze: Shortest Path
20 pts
Machine CodingCoding
AI Coding Maze: Bomb Triggers
20 pts
Machine CodingCoding
Binary Tree: Print Left Boundary
20 pts
Machine CodingCoding
Calculator: Evaluate Expression with '+'
20 pts
Machine CodingCoding
Valid Number
20 pts
Machine CodingCoding
Binary Tree Vertical Order Traversal
20 pts
Machine CodingCoding
LeetCode problem (unidentified: “lc雾灵”)
20 pts
Machine CodingCoding
LeetCode problem (unidentified: “lc刘霸凌” +
20 pts
Machine CodingCoding
Compiler Optimization Cost Estimator (Time
20 pts
Machine CodingCoding
Top K Largest Elements When
20 pts
Machine CodingCoding
Design a Banking System (Progressive
20 pts
Machine CodingCoding
Progressive Maze Solver (Fix Tests
20 pts
Machine CodingCoding
Lowest Common Ancestor in an
20 pts
Machine CodingCoding
Merge Two Sorted Interval Arrays
20 pts
Machine CodingCoding
Max Total Characters by Selecting
20 pts
Machine CodingCoding
SQL Debugging: Fix an AI-generated
20 pts
Machine CodingCoding
Python Data Processing: Merge two
20 pts
Machine CodingCoding
Grid Maze (multi-part questions)
20 pts
Machine CodingCoding
Design a WorkHoursRegister System (Attendance,
20 pts
Machine CodingCoding
Count Special Pairs (Even Product
20 pts
Machine CodingCoding
Sparse Vector Dot Product
20 pts
Machine CodingCoding
Flip One 0 to Maximize
20 pts
Machine CodingCoding
Sum Root-to-Leaf Numbers
20 pts
Machine CodingCoding
Grid Maze Multi-Part Shortest Path
20 pts
Machine CodingCoding
Maximum Unique Characters (Concatenation)
20 pts
Machine CodingCoding
Kth Largest Element in an
20 pts
Machine CodingCoding
Subarray Sum Equals K (Variant)
20 pts
Machine CodingCoding

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OA Coding Set (Dictionary +

Machine CodingCoding

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