| author | Christian Urban <christian.urban@kcl.ac.uk> |
| Wed, 25 Nov 2020 17:39:20 +0000 | |
| changeset 371 | 0b7f7b402064 |
| parent 323 | 93b6c16dded8 |
| permissions | -rw-r--r-- |
| 227 | 1 |
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| 283 | 2 |
import CW7a._ |
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assert(occurrences(List("a", "b", "b", "c", "d")) == Map("a" -> 1, "b" -> 2, "c" -> 1, "d" -> 1))
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assert(occurrences(List("d", "b", "d", "b", "d")) == Map("d" -> 3, "b" -> 2))
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assert(occurrences(List("b", "b", "b", "b", "b")) == Map("b" -> 5))
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assert(occurrences(Nil) == Map()) |