write a method that takes any two nodes u and v in a tree t, and quickly determines if the node u in the tree is a descendant or ancestor of node v

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Idid not read your question or any thing i am just trying to get more pts so i can ask questions sorry

Answercloud computing;

Some responsibilities of having a checking account : write checks clearly and carefully.  keep an accurate record of checks written, so you can keep track of payments & deposits made to cover the check. maintain checks register with accuracy so as to avoid returned checks.