IN JS ONLY NEEDED SOLUTIONHere, we have 1 followed by a space, operator followed by another spaceand 2. For the challenge, we are going to have only two numbers between 1valid operator. The return value should be a number.eval() is not allowed. In case of division, whenever the second number equals"0" return -1For example:"150" → -1ExamplesarithmeticOperationarithmeticOperation("12 + 12") -24("12 12") -24

Algorithm - Take input from user. Now use the below logic - switch (op) { case "+": return…

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Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Implement a recursive function called evens that returns an integer with only the even numbers. Note this function is returning an integer, not printing. There should be no use of cout within your function. The function declaration should look as follows: int evens(int n); (ex. evens(234567); returns 246) (ex. cout << evens(56032); prints 602)
Create a program that shows overloading of operators. Choose any 2 from binary operators (except add and mul), 2 from comparison operators, 1 from assignment operators, and 1 from unary operators.
Hello can you please help me with this problem because I don't understand it and I got it incorrect. I have attach the problem and my work on the top left it says it is incorrect and the reason why
JS In this challenge, you must verify the equality of two different values given the parameters a and b. Both the value and type of the parameters need to be equal. The possible types of the given parameters are: What have you learned so far that will permit you to do two different checks (value and type) with a single statement? Implement a function that returns true if the parameters are equal, and false if they are not. Examples checkEquality(1, true) → false // A number and a boolean: the value and type are different. checkEquality(0, "0") → false // A number and a string: the type is different.
Could you solve this Question please? Write a function called has_duplicates that takes a string parameter and returns True if the string has any repeated characters. Otherwise, it should return False. Implement has_duplicates by creating a histogram using the histogram function above. Do not use any of the implementations of has_duplicates that are given in your textbook. Instead, your implementation should use the counts in the histogram to decide if there are any duplicates. Write a loop over the strings in the provided test_dups list. Print each string in the list and whether or not it has any duplicates based on the return value of has_duplicates for that string. For example, the output for "aaa" and "abc" would be the following. aaa has duplicatesabc has no duplicates Print a line like one of the above for each of the strings in test_dups. Obs:Copy the code below into your program def histogram(s): d = dict() for c in s: if c not in d: d[c] =…
9
Q1 The periodic function sin⁡(2x) has multiple roots between x values of -5π and 5π. If xL = -15 and xU = 15, which of the following statements is true using a bracketed method? Select one: a. All roots will be returned b. The middle root will be returned c. The chosen bracket is invalid for bracketed methods d. A single root will be returned e. The algorithm will be stuck in an infinite loop Q2 Consider x and y to represent data points (xi,yi), where i = 1, 2, 3, … n. What is the length of pafter running the following command? p = polyval(x,y) Select one: a. n b. n - 1 c. n + 1 d. Empty variable e. 1 Q3 Consider a system of linear equations in the form of AX = B, where X is the unknown vector. Which of the following can be used to solve for X? Select one: a. X = A\B b. X = B./A c. X = inv(B)*A d. X = inv(A)./B e. X = B\A
A binary tree is balanced if every node in the tree is such that the heights of its left and right subtrees do not differ by more than one. Complete the pseudo-code method isBalanced which determines if a binary tree is balanced. The function returns a value of -1 if the tree is not balanced, otherwise it returns the height of the tree. Add comments to explain what your code segment is doing. The following definition of a node in the tree is used. class BinaryNode { int element; BinaryNode left; BinaryNode right; } Complete the method below: int isBalanced (BinaryNode t) { int leftCount=0; int rightCount=0; if (t == null) //empty tree, height is 0 return 0; if ((t.left== null) and (t.right== null) return 0; else { . . . . . . . . . } }
I need the program in javascript (data structure)
Java only Rajesh loves lucky numbers. Everyone knows that lucky numbers are positive integers whose decimal representation contains only the lucky digits 4 and 7. For example, the numbers 47,744, 4 are lucky and 5, 17,467 are not. Let F(x) equal the number of digits d in the decimal representation of the positive integer x. Chef is only interested in F4(x) and F7(x) functions. For a given positive integer N, he wants to know the total number of distinct pairs (L; R) such that F4(L) + F4(L + 1) + . + F4(R) equals F7(L) + F7(L + 1) + + F7(R) and 1
Please find the question, Code should be on C# language.
Use Java

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