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118 lines
3.2 KiB
Markdown
118 lines
3.2 KiB
Markdown
---
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id: 699c8e045ee7cb94ed2322d8
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title: "Challenge 217: Captured Chess Pieces"
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challengeType: 29
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dashedName: challenge-217
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---
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# --description--
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Given an array of strings representing chess pieces you still have on the board, calculate the value of the pieces your opponent has captured.
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In chess, you start with 16 pieces:
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| Piece | Abbreviation | Quantity | Value |
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| ------ | -------------- | -------- | ----- |
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| Pawn | `"P"` | 8 | 1 |
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| Rook | `"R"` | 2 | 5 |
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| Knight | `"N"` | 2 | 3 |
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| Bishop | `"B"` | 2 | 3 |
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| Queen | `"Q"` | 1 | 9 |
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| King | `"K"` | 1 | 0 |
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- The given array will only contain the abbreviations above.
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- Any of the 16 pieces not included in the given array have been captured.
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- Return the total value of all captured pieces, unless...
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- If the King has been captured, return `"Checkmate"`.
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# --hints--
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`get_captured_value(["P", "P", "P", "P", "P", "P", "R", "R", "N", "B", "Q", "K"])` should return `8`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_captured_value(["P", "P", "P", "P", "P", "P", "R", "R", "N", "B", "Q", "K"]), 8)`)
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}})
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```
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`get_captured_value(["P", "P", "P", "P", "P", "R", "B", "K"])` should return `26`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_captured_value(["P", "P", "P", "P", "P", "R", "B", "K"]), 26)`)
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}})
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```
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`get_captured_value(["K", "P", "P", "N", "P", "P", "R", "P", "B", "P", "N", "B"])` should return `16`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_captured_value(["K", "P", "P", "N", "P", "P", "R", "P", "B", "P", "N", "B"]), 16)`)
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}})
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```
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`get_captured_value(["P", "Q", "N", "P", "P", "B", "K", "P", "R", "R", "P", "P", "B", "P"])` should return `4`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_captured_value(["P", "Q", "N", "P", "P", "B", "K", "P", "R", "R", "P", "P", "B", "P"]), 4)`)
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}})
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```
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`get_captured_value(["P", "K"])` should return `38`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_captured_value(["P", "K"]), 38)`)
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}})
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```
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`get_captured_value(["N", "P", "P", "B", "K", "P", "Q", "N", "P", "P", "R", "R", "P", "P", "P", "B"])` should return `0`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_captured_value(["N", "P", "P", "B", "K", "P", "Q", "N", "P", "P", "R", "R", "P", "P", "P", "B"]), 0)`)
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}})
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```
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`get_captured_value(["N", "P", "P", "B", "P", "R", "Q", "P", "P", "P", "B"])` should return `"Checkmate"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_captured_value(["N", "P", "P", "B", "P", "R", "Q", "P", "P", "P", "B"]), "Checkmate")`)
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}})
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```
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# --seed--
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## --seed-contents--
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```py
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def get_captured_value(pieces):
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return pieces
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```
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# --solutions--
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```py
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def get_captured_value(pieces):
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if "K" not in pieces:
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return "Checkmate"
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values = {"P":1, "R":5, "N":3, "B":3, "Q":9, "K":0}
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remaining = "PPPPPPPPRRNNBBQK"
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for p in pieces:
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remaining = remaining.replace(p, "", 1)
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return sum(values[p] for p in remaining)
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```
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