Let U be the set of all integers. Consider the following sets: S is the set...
Let n be a positive integer, and let s and t be integers. Then the following hold. I need the prove for (iii) Lemma 8.1 Let n be a positive integer, and let s and t be integers. Then the following hold. (i) We have s et mod n if and only if n dividest - s. (ii) We have pris + t) = Hn (s) +Mn(t) mod n. (iii) We have Hr(st) = Hn (3) Men(t) mod n. Proof....
please explain how Z-{0} specifically is the answer. Consider the following propositions over the integers N. • p:n is a divisor of 12 • q: n is even What are the truth sets of a)p b) p 1 a c) p +9 For finite sets you can list the elements, but for infinite sets (if there are any) use set builder notation. Be sure to show which answer is which. (©) b q: The truth set is truth set is...
Given a set S of integers, we say that S can be partitioned if it can be split into two sets U and V so that considering all u U and all v V, u = v. Let PARTITION = { <S> | S can be partitioned }. a. (5) Show that PARTITION NP by writing either a verifier or an NDTM. b. (15) Show that PARTITION is NP-complete by reduction from SUBSET-SUM. 9.(20) Given a set...
A2 Let S := {k1, ..., kc,} be a set of containing certain possibly equal complex numbers, and let T be the set of integers lying between (and perhaps equal to) C1 and C2. Let C be the Cartesian product of S and T. a. Write C using set-roster notation. b. Write C using set-builder notation. c. What are the possible sizes (cardinalities) of C? d. If C has a subset of cardinality 5, what conditions on S are there?...
Given a set S of integers, we say that S can be partitioned if it can be split into two sets U and V so that considering all u Î U and all v Î V, Su = Sv. Let PARTITION = { | S can be partitioned }. Show that PARTITION is NP-complete by reduction from SUBSET-SUM
Given a set S of integers, we say that S can be partitioned if it can be split into two sets U and V so that considering all u U and all v V, u = v. Let PARTITION = { | S can be partitioned }. a. (5) Show that PARTITION NP by writing either a verifier or an NDTM. b. (15) Show that PARTITION is NP-complete by reduction from SUBSET-SUM.
3. (20 pts) Let ụ be a finite set, and let S = {Si, S , S,n} be a collection of subsets of U. Given an integer k, we want to know if there is a sub-collection of k sets S' C S whose union covers all the elements of U. That is, S k, and Us es SU. Prove that this problem is NP-complete. 992 m SES, si 3. (20 pts) Let ụ be a finite set, and let...
Given a set S of integers, we say that S can be partitioned if it can be split into two sets U and V so that considering all u ∈ U and all v ∈ V, Σu = Σ v. Let PARTITION = { <S>| S can be partitioned }. a. (5) Show that PARTITION ∈ NP by writing either a verifier or an NDTM b. (15) Show that PARTITION is NP-complete by reduction from SUBSET-SUM.
Define four sets of integers Let P {0, 1), let Q {-11, 1, 5) , and Let R and S be arbitrary nonempty subsets of Z. Define an even indicator function F F: ZP by F(x) = (x + 1) mod 2 for x e Z That is, F(x) 1 if x is even, and F(x) = 0 if x is odd. or neither? Explain. a) Is F: Q P one-to-one, onto, both, or neither? Explain. b) Is F: (Pn...
2. 9 marks] Strings. Consider the following definitions on strings Let U be the set of all strings Let s be a string. The length or size of a string, denoted Is, is the number of characters in s Let s be a string, and i e N such that 0 < ί < sl. We write s[i] to represent the character of s at index i, where indexing starts at 0 (so s 0] is the first character, and...