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How to Solve Alphabet Board Path Problem
Master the Alphabet Board Path LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Medium#1138
LeetCode ProblemAlphabet Board Path
On an alphabet board, we start at position (0, 0), corresponding to character board[0][0]. Here, board = ["abcde", "fghij", "klmno", "pqrst", "uvwxy", "z"], as shown in the diagram below. We may make the following moves: (Here, the only positions that exist on the board are positions with letters on them.) Return a sequence of moves that makes our answer equal to target in the minimum number of moves. You may return any path that does so.
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Problem Breakdown
Understanding the Alphabet Board Path Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
On an alphabet board, we start at position (0, 0), corresponding to character board[0][0]. Here, board = ["abcde", "fghij", "klmno", "pqrst", "uvwxy", "z"], as shown in the diagram below. We may make the following moves: (Here, the only positions that exist on the board are positions with letters on them.) Return a sequence of moves that makes our answer equal to target in the minimum number of moves. You may return any path that does so.
MediumProblem #1138
LeetCodeAlphabet Board Path
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How PhantomCodeAI Helps
Get real-time assistance for Alphabet Board Path problems during coding interviews. PhantomCodeAI provides instant solutions and explanations.
Examples
# Example 1
Input
target = "leet"
Output
"DDR!UURRR!!DDD!"
# Example 2
Input
target = "code"
Output
"RR!DDRR!UUL!R!"
Constraints
1 <= target.length <= 100
target consists only of English lowercase letters.
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Solve Alphabet Board Path — On an alphabet board, we start at position (0, 0), corresponding to character bo...
Here's the optimal approach using Hash Table:
def solve(input):
# Optimal O(n) solution
return result
Time: O(n) | Space: O(n)
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Frequently Asked Questions
Common questions about solving Alphabet Board Path and using PhantomCodeAI during coding interviews.
How does PhantomCodeAI help with LeetCode problems during a coding interview?
PhantomCodeAI reads the problem from a screenshot or listens to it via audio, then generates a complete solution with a step-by-step approach and time/space complexity, so you can focus on explaining your reasoning rather than getting stuck on implementation.
Which programming languages does PhantomCodeAI support?
11 languages including Python, Java, C++, JavaScript, TypeScript, Go, Rust, Ruby, Swift, Kotlin, and C#. Set a preferred language to get idiomatic solutions.
Does PhantomCodeAI work with HackerRank, CodeSignal, and CoderPad?
Yes — it works alongside LeetCode, HackerRank, CodeSignal, CoderPad, and HackerEarth, plus any browser-based coding environment.
Can PhantomCodeAI handle follow-up questions and modifications?
Yes. Capture the modified problem by screenshot or audio and get an updated solution within seconds, including new edge cases and optimizations.
Is PhantomCodeAI detectable during live interviews?
PhantomCodeAI runs as a native desktop overlay that does not appear in screen shares, recordings, or proctoring software, and works with Zoom, Google Meet, Microsoft Teams, and major coding platforms.
Should I still practice these problems on my own first?
Yes. The most durable preparation is solving problems unaided first, then using AI afterward to review your approach, complexity, and missed edge cases — use it to debrief and learn, not to skip the reps.
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