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- struct Element {
- var key: Int
- var value: Int
- }
- class MyHashMap {
- var buckets : [[Element]] = [[]]
- init() {
- buckets = [Array(repeating: Element(key: -1, value: -1), count: 2)]
- buckets.append([Element(key: 3, value: 4)])
- }
- }
- hashmap.buckets.flatMap{$0}.filter{$0.key != -1}
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