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This commit is contained in:
Vitor Oliveira 2021-04-10 10:04:40 -07:00
parent d6e7b9f1d8
commit 745b66227b
1 changed files with 10 additions and 9 deletions
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5
data_structures/hash_table/arrays_intersection.rb
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@ -32,11 +32,12 @@ def arrays_intersection(arr1, arr2, arr3)
add_to_hash(arr2, hash)
add_to_hash(arr3, hash)
hash.select { |key, value| value == 3 }.keys
hash.select { |_key, value| value == 3 }.keys
end
def add_to_hash(arr, hash)
arr.each_with_index do |value, index|
arr.count.times do |pointer|
value = arr[pointer]
hash[value] += 1
end
end