{
  "slug": "crystal",
  "language": "Crystal",
  "repository": "https://github.com/exercism/crystal",
  "active": true,
  "test_pattern": "_spec.cr",
  "exercises": [
    {
      "slug": "hello-world",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "hamming",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "gigasecond",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "rna-transcription",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "bob",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "raindrops",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "leap",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "difference-of-squares",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "pangram",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "largest-series-product",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "bracket-push",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "sieve",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "roman-numerals",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "atbash-cipher",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "anagram",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "react",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "acronym",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "binary",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "binary-search-tree",
      "difficulty": 1,
      "topics": [
        "data structures",
        "algorithms",
        "trees",
        "recursion"
      ]
    },
    {
      "slug": "run-length-encoding",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "pascals-triangle",
      "difficulty": 1,
      "topics": [

      ]
    },
    {
      "slug": "forth",
      "difficulty": 3,
      "topics": [

      ]
    }
  ],
  "deprecated": [

  ],
  "foregone": [

  ]
}