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  2. Self-balancing binary search tree - Wikipedia

    en.wikipedia.org/wiki/Self-balancing_binary...

    Most operations on a binary search tree (BST) take time directly proportional to the height of the tree, so it is desirable to keep the height small. A binary tree with height h can contain at most 2 0 +2 1 +···+2 h = 2 h+11 nodes. It follows that for any tree with n nodes and height h: +

  3. Binary search tree - Wikipedia

    en.wikipedia.org/wiki/Binary_search_tree

    Fig. 1: A binary search tree of size 9 and depth 3, with 8 at the root. In computer science, a binary search tree (BST), also called an ordered or sorted binary tree, is a rooted binary tree data structure with the key of each internal node being greater than all the keys in the respective node's left subtree and less than the ones in its right subtree.

  4. Higher Secondary Certificate - Wikipedia

    en.wikipedia.org/wiki/Higher_Secondary_Certificate

    Class XI - XII roughly covers the 16-17 age group in the context of Bangladesh. [ 6 ] After 10 years of schooling at the primary and secondary level, students who succeed in passing the Secondary School Certificate (SSC) examination have the option of joining a college for a two-year higher secondary education in respective areas of ...

  5. The 6 most common headache types — and when to see a doctor

    www.aol.com/6-most-common-headache-types...

    Certain types of headaches may be a sign of a more serious condition, such as a brain tumor or aneurysm, especially if the pain is sudden or severe, according to Cohen. "This highlights the ...

  6. Homelessness rates jumped by double-digits in 2024 as ... - AOL

    www.aol.com/homelessness-rates-jumped-double...

    The number for January 2024 is 18.1% higher than in 2023, when officials counted about 650,000 people living in homeless shelters or in parks and on streets. In 2022, the population of people ...

  7. NFL Christmas winners, losers: Chiefs, Ravens are jolly as ...

    www.aol.com/nfl-christmas-winners-losers-chiefs...

    The football world already knows what the Chiefs, in possession of the AFC's No. 1 seed yet again, are capable of – and certainly when the road to the Super Bowl goes through Arrowhead.

  8. Past paper - Wikipedia

    en.wikipedia.org/wiki/Past_paper

    A past paper is an examination paper from a previous year or previous years, usually used either for exam practice or for tests such as University of Oxford, [1] [2] University of Cambridge [3] College Collections. Exam candidates find past papers valuable in test preparation.

  9. Five tips for an easy Christmas dinner, from Temp-tations ...

    www.aol.com/lifestyle/five-tips-for-an-easy...

    “Having a solid game plan reduces stress and gives me more time with my guests.” Tara's favorite toffee bars make the perfect Christmas dessert. Tip 5: Never forget dessert.