The Set Union Problem with Unlimited Backtracking
نویسندگان
چکیده
منابع مشابه
The Set Union Problem With Unlimited Backtracking
An extension of the disjoint set union problem is considered, where the extra primitive backtrack(i) can undo the last i unions not yet undone. Let n be the total number of elements in all the sets. A data structure is presented that supports each union and find in O(lognj loglogn) worst-case time and each backtrack(i) in 0(1) worst-case time, irrespective of i. The total space required by the ...
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ژورنال
عنوان ژورنال: SIAM Journal on Computing
سال: 1994
ISSN: 0097-5397,1095-7111
DOI: 10.1137/s0097539789173597