**Twitter**\nI was asked variation of this problem:\n\nFind median from data stream:\nhttps://leetcode.com/problems/find-median-from-data-stream/\n\n**Apple**\nExactly this problem:\nhttps://leetcode.com/problems/android-unlock-patterns/\n\n**Uber**\nVariation of this one: \nhttps://leetcode.com/problems/regular-expression-matching/

Twitter\nI was asked variation of this problem:\n\nFind median from data stream:\nhttps://leetcode.com/problems/find-median-from-data-stream/\n\nApple\nExactly 