17. Convert the following EBNF to BNF: S→A{bA} A→a[b]A
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17. Convert the following EBNF to BNF:
S→A{bA}
A→a[b]A
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- (a) The Fibonacci sequence can also be seen in hurricanes prediction. The shape takes in the form of a spiral, it can be in a nesting process and repeated into infinity. It is called the logarithmic spiral, and it abounds in nature. The Fibonacci sequence of numbers, “Fn”, is defined using the recursive relation. Fibonacci sequence of numbers can be computed as follows: Fn = Fn-1+Fn-2 If the 12th and 13th terms in the hurricane prediction sequence are 89 km/hour and 144 km/hour, analyze the value of the 15th, 16th, and 17th hurricane speed by using the Fibonacci formula as stated above.Hill cipher decryption: I must find the encryption key in order to decrypt a specific message. All i know is that the encryption key is 3x3 matrix and the specific message begins with the phrase "CONFIDENT". I must do this in python. I understand how to decrypt stuff once I have the key matrix. But I am confused as to how to find the key matrix in the first place with the information given.7.Convert the following BNF to EBNF + | | | | ** () | id
- 2. The function f is defined for non-negative integers a and b recursively as follows: f (а, b) 3D1 if a = 0 or b = 0 f (a - 1, b f (a f (а, а) 1) + 2a - 1 if a if a > b if a < b b b, b) + f (b, b) + f (b а, а) } Compute f (2, 3) by drawing a recursion tree showing all of the computation required and then use your tree to compute the answer.4. A={3,4}, B={4,5}. An B= AUB= A-B= A OB= AXB=(A v B) ^ ~(~A ^ B) → A
- Let L₁ = {aa, bb}, L₂ = {A, a, aa}, L3 = {x | x = {a,b}* ^ |x| ≤ 3} = {A, a, b, aa, ab, ba, bb, aaa, aab, aba, abb, baa, bab, bba, bbb}. Evaluate: (L₁n L3) · L2 = •Using C programming language. Implement the following functions: 1. void deleteAtV2(int num[], int *count, int pos);(p → r) V (q → r) is logically equivalent to O a) (p^ q) v r O b) (p v q) → r О с) (рлq) —r О d) (р —q) —r
- Problem Description Inversion Count for an array indicates – how far (or close) the array is from being sorted. If array is alreadysorted then inversion count is 0. If array is sorted in reverse order that inversion count is the maximum.Formally speaking, two elements a[i] and a[j] form an inversion if a[i] > a[j] and i < j .Example: The sequence 2, 4, 1, 3, 5 has three inversions (2, 1), (4, 1), (4, 3).Requirement Design should be based on divide and conquer.Running time should NOT be worse than .Must use recursion to solve the subproblems. Input Specification Your program should read from an input file, which starts with a line indicating the number of test cases.Each of the following lines indicates a test case, and each test case includes a sequence of numbers(separated by spaces) for which you need to count inversions. Sample Input 32 4 1 3 51 2 4 8 9 3 5 6 1 20 6 4 5Output Specification For each test case, print one line with a format of The sequence has ? inversions in…Question 3 a) Iteration and recursion are two very fundamental concepts underlying things we do in computing. (i). Distinguish between the terms Iteration and Recursion in the context of solving problems in business, science or engineering. (ii). Using practical examples in business, science or engineering, explain reasons why people still use recursion to solve problems even-though iteration is more efficient. b) Describe how a Savings and Loans Company can use singly-linked lists to keep track of customers that its Susu collectors (or mobile bankers) have won for the company over the last 2 months; and draw a suitable diagram (with hypothetical data) to illustrate your answer. c) In many fields of human endeavour, we use stacks on daily basis. Provide and explain four practical examples where we use stacks in real life.A[i][j] = 1 where i = j how do I translate this to c++ programing?It is for a two dimentional matrix, trying to print a diagonal with ones and rest zeros. ex. 1 0 0 0 1 0 0 0 1