How to Solve Letter Tile Possibilities Leetcode Problem - Interview Coder Guide
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How to Solve Letter Tile Possibilities Problem

Master the Letter Tile Possibilities LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.

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Medium#1160
LeetCode Problem

Letter Tile Possibilities

You have n  tiles, where each tile has one letter tiles[i] printed on it. Return the number of possible non-empty sequences of letters you can make using the letters printed on those tiles.

Hash TableStringBacktracking+1 more

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Problem Breakdown

Understanding the Letter Tile Possibilities Problem

Let's break down this LeetCode problem and understand what makes it challenging in interview settings.

Problem Statement

You have n  tiles, where each tile has one letter tiles[i] printed on it. Return the number of possible non-empty sequences of letters you can make using the letters printed on those tiles.

MediumProblem #1160
LeetCode

Letter Tile Possibilities

Related Topics
Hash TableStringBacktrackingCounting
How Interview Coder Helps

Get real-time assistance for Letter Tile Possibilities problems during coding interviews. Interview Coder provides instant solutions and explanations.

Examples

Example 1
INPUT
tiles = "AAB"
OUTPUT
8
EXPLANATION

The possible sequences are "A", "B", "AA", "AB", "BA", "AAB", "ABA", "BAA".

Example 2
INPUT
tiles = "AAABBC"
OUTPUT
188
Example 3
INPUT
tiles = "V"
OUTPUT
1

Constraints

1 <= tiles.length <= 7
tiles consists of uppercase English letters.

How Interview Coder Helps with Leetcode Problems

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Zoom
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Google Meet
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HackerRank
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Frequently Asked Questions

Common questions about solving Letter Tile Possibilities and using Interview Coder during coding interviews.

Interview Coder generates complete solutions instantly with proper complexity analysis, letting you focus on explaining your approach and demonstrating problem-solving skills rather than getting stuck on implementation details during high-pressure situations.

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