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| tree (A data structure containing zero or more nodes that are linked together in a hierarchy. If any nodes are present, one node is the root; each node except the root is the child of one and only one other node, and each node has zero or more nodes as children); trie (A tree that is used to store strings and in which the descendants of a node have a common prefix of the string associated with that node) | |||
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cay : 30 phrases in 1 subject |
| Microsoft | 30 |