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authorVincent Ambo <mail@tazj.in>2021-12-13T22·51+0300
committerVincent Ambo <mail@tazj.in>2021-12-13T23·15+0300
commit019f8fd2113df4c5247c3969c60fd4f0e08f91f7 (patch)
tree76a857f61aa88f62a30e854651e8439db77fd0ea /users/wpcarro/scratch/data_structures_and_algorithms/inflight-entertainment.py
parent464bbcb15c09813172c79820bcf526bb10cf4208 (diff)
parent6123e976928ca3d8d93f0b2006b10b5f659eb74d (diff)
subtree(users/wpcarro): docking briefcase at '24f5a642' r/3226
git-subtree-dir: users/wpcarro
git-subtree-mainline: 464bbcb15c09813172c79820bcf526bb10cf4208
git-subtree-split: 24f5a642af3aa1627bbff977f0a101907a02c69f
Change-Id: I6105b3762b79126b3488359c95978cadb3efa789
Diffstat (limited to 'users/wpcarro/scratch/data_structures_and_algorithms/inflight-entertainment.py')
-rw-r--r--users/wpcarro/scratch/data_structures_and_algorithms/inflight-entertainment.py35
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diff --git a/users/wpcarro/scratch/data_structures_and_algorithms/inflight-entertainment.py b/users/wpcarro/scratch/data_structures_and_algorithms/inflight-entertainment.py
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+++ b/users/wpcarro/scratch/data_structures_and_algorithms/inflight-entertainment.py
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+# possible :: Int -> [Int] -> Bool
+def possible(flight_duration, film_durations):
+    seeking = set()
+
+    for x in film_durations:
+        if x in seeking:
+            return True
+        else:
+            seeking.add(flight_duration - x)
+
+    return False
+
+
+should = [
+    (10, [1, 9, 8, 8, 8]),
+    (10, [1, 9]),
+    (10, [1, 9, 5, 5, 6]),
+    (1, [0.5, 0.5]),
+    (1, [0.5, 0.5]),
+]
+
+for a, b in should:
+    print("Testing: %s %s" % (a, b))
+    assert possible(a, b)
+
+shouldnt = [
+    (10, [1, 10, 1, 2, 1, 12]),
+    (1, [0.25, 0.25, 0.25, 0.25]),
+    (5, [1, 2, 2]),
+]
+for a, b in shouldnt:
+    print("Testing: %s %s" % (a, b))
+    assert not possible(a, b)
+
+print("Tests pass")