IN VISUAL BASIC, solve Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.

For diagrams with three arcs, there are 15 possibilities. considering the following set of arcs: arcs = [(0, 1), (0, 2), (1, 2)] This set of arcs should result in 1 crossing and 2 nestings. However, let's check the function's output: crossings, nestings = count_crossings_and_nestings(arcs)print(f"Number of crossings: {crossings}")print(f"Number of nestings: {nestings}") This outputs: Number of crossings: 0Number of nestings: 0 My questions I need help from you: The first problem is related to the variable n and its value. Explain what goes wrong. Provide a better implementation of the function, avoiding the use of n. Use the same function name, i.e., count_crossings_and_nestings.

Computer Science You must count the number of strings of length 6 over the alphabet A = {x, y, z}. Any string of length 6 can be considered as a 6-tuple. For example, the string xyzy can be represented by the tuple (x,y,z,y). So the number of strings of length 6 over A equals the number of 6-tuples over A, which by product rule is N. Find N. (Use the following product rule for any finite set A and any natural number n : |A^n|=|A|^n)

can you help me with this code because I am struggling:question that I need help with:it will be  investigate the problem of navigation on a two-dimensional grid with obstacles. The goal is to produce the shortest path between a provided pair of points, taking care to maneuver around the obstacles as needed. Path length is measured in Euclidean distance. Valid directions of movement include up, down, left, right, up-left, up-right, down-left, and down-right. Your task is to write a function find_path(start, goal, scene) which returns the shortest path from the start point to the goal point that avoids traveling through the obstacles in the grid. For this problem, points will be represented as two-element tuples of the form (row, column), and scenes will be represented as two-dimensional lists of Boolean values, with False values corresponding empty spaces and True values corresponding to obstacles. Your output should be the list of points in the path, and should explicitly include both…