{ "data": { "question": { "questionId": "1160", "questionFrontendId": "1079", "boundTopicId": null, "title": "Letter Tile Possibilities", "titleSlug": "letter-tile-possibilities", "content": "

You have n  tiles, where each tile has one letter tiles[i] printed on it.

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Return the number of possible non-empty sequences of letters you can make using the letters printed on those tiles.

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Example 1:

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\nInput: tiles = "AAB"\nOutput: 8\nExplanation: The possible sequences are "A", "B", "AA", "AB", "BA", "AAB", "ABA", "BAA".\n
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Example 2:

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\nInput: tiles = "AAABBC"\nOutput: 188\n
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Example 3:

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\nInput: tiles = "V"\nOutput: 1\n
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Constraints:

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Most standard library headers are already included automatically for your convenience.

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OpenJDK 17 . Java 8 features such as lambda expressions and stream API can be used.

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Most standard library headers are already included automatically for your convenience.

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Python 2.7.12.

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For Map/TreeMap data structure, you may use sortedcontainers library.

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C# 10 with .NET 6 runtime

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Your code is compiled with debug flag enabled (/debug).

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Node.js 16.13.2.

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Ruby 3.1

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Go 1.17.6.

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Python 3.10.

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