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ErikSchierboom's solution

to Scrabble Score in the Nim Track

Published at Sep 14 2020 · 0 comments
Instructions
Test suite
Solution

Note:

This exercise has changed since this solution was written.

Given a word, compute the Scrabble score for that word.

Letter Values

You'll need these:

Letter                           Value
A, E, I, O, U, L, N, R, S, T       1
D, G                               2
B, C, M, P                         3
F, H, V, W, Y                      4
K                                  5
J, X                               8
Q, Z                               10

Examples

"cabbage" should be scored as worth 14 points:

  • 3 points for C
  • 1 point for A, twice
  • 3 points for B, twice
  • 2 points for G
  • 1 point for E

And to total:

  • 3 + 2*1 + 2*3 + 2 + 1
  • = 3 + 2 + 6 + 3
  • = 5 + 9
  • = 14

Extensions

  • You can play a double or a triple letter.
  • You can play a double or a triple word.

Running the tests

To compile and run the tests, just run the following in your exercise directory:

$ nim c -r scrabble_score_test.nim

Submitting Exercises

Note that, when trying to submit an exercise, make sure the solution is in the $EXERCISM_WORKSPACE/nim/scrabble-score directory.

You can find your Exercism workspace by running exercism debug and looking for the line that starts with Exercises Directory.

Need help?

These guides should help you,

Source

Inspired by the Extreme Startup game https://github.com/rchatley/extreme_startup

Submitting Incomplete Solutions

It's possible to submit an incomplete solution so you can see how others have completed the exercise.

scrabble_score_test.nim

import unittest
import scrabble_score

# version 1.1.0

suite "Scrabble Score":
  test "lowercase letter":
    check score("a") == 1

  test "uppercase letter":
    check score("A") == 1

  test "valuable letter":
    check score("f") == 4

  test "short word":
    check score("at") == 2

  test "short, valuable word":
    check score("zoo") == 12

  test "medium word":
    check score("street") == 6

  test "medium, valuable word":
    check score("quirky") == 22

  test "long, mixed-case word":
    check score("OxyphenButazone") == 41

  test "english-like word":
    check score("pinata") == 8

  test "empty input":
    check score("") == 0

  test "entire alphabet available":
    check score("abcdefghijklmnopqrstuvwxyz") == 87
import strutils

proc score(letter: char): int =
  case letter.toUpperAscii
  of 'D', 'G': 2
  of 'B', 'C', 'M', 'P': 3
  of 'F', 'H', 'V', 'W', 'Y': 4
  of 'K': 5
  of 'J', 'X': 8
  of 'Q', 'Z': 10
  else: 1

proc score*(word: string): int =
  for letter in word:
    result.inc letter.score

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