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- Q. Given a 2d grid map of '1's (land) and '0's (water),count the number of islands.An island is surrounded by water and is formed byconnecting adjacent lands horizontally or vertically.You may assume all four edges of the grid are all surrounded by water. Example 1: 11110110101100000000Answer: 1 Example 2: 11000110000010000011Answer: 3""" def num_islands(grid): count = 0 for i in range(len(grid)): for j, col in enumerate(grid[i]): if col == 1: dfs(grid, i, j) count += 1 Please code it. .passing through (9,5) with x-int ecept -3Computer Science There is an n × n grid of squares. Each square is either special, or has a positive integer costassigned to it. No square on the border of the grid is special.A set of squares S is said to be good if it does not contain any special squares and, starting fromany special square, you cannot reach a square on the border of the grid by performing up, down,left and right moves without entering a cell belonging to S. 5 3 4 9 4 X 3 6 1 9 X 4 1 2 3 5 - Design an algorithm which receives an arbitrary n × n grid, runs in time poly-nomial in n and determines a good set of squares with minimum total cost.
- PYTHON DATASET given x = np.array([i*np.pi/180 for i in range(60,300,4)]) np.random.seed(10) #Setting seed for reproducibility y = 4*x + 7 + np.random.normal(0,3,len(x)) Write a function inspired by sklearn’s polynomial preprocessing: (https://scikit-learn.org/stable/modules/generated/sklearn.preprocessing.PolynomialFeatures.html) your function should have: degree and include bias parameters only. For this assignment, assume that input is a 1-dimensional numpy array. For example, if an input sample is np.array([a, b]), the degree-2 polynomial features with "include_bias=True" are [1, a, b, a2, b2].Hippity hoppity, abolish loopity def frog_collision_time(frog1, frog2): A frog hopping along on the infinite two-dimensional lattice grid of integers is represented as a 4- tuple of the form (sx, sy, dx, dy) where (sx, sy) is its starting position at time zero, and (dx, dy) is its constant direction vector for each hop. Time advances in discrete integer steps 0, 1, 2, 3, ... so that each frog makes one hop at every tick of the clock. At time t, the position of that frog is given by the formula (sx+t*dx, sy+t*dy) that can be nimbly evaluated for any t. Given two frogs frog1 and frog2 that are guaranteed to initially stand on different squares, return the time when both frogs hop into the same square. If these two frogs never simultaneously arrive at the same square, return None. This function should not contain any loops whatsoever. The result should be calculated using conditional statements and integer arithmetic. Perhaps the best way to get cracking is to first solve a simpler…Computer Science A way to avoid overfitting in Deep Neural Networks is to add an additional term R to the loss function L (for example L can be the cross entropy loss) as follows: L(w) + λR(w). (1) You know that one choice for R is the L2 norm, i.e. R(w) = ||w||2 2 . One friend of yours from the School of Maths told you however that there’s no need to use squares (i.e. powers of two) and that you can achieve the same effect by using absolute values, i.e. the L1 norm: R(w) = ||w||1. Would you agree with him? i.e. is the use of the L2 norm equivalent to using the L1 norm for regularization purposes? Justify your answer
- Correct answer will be upvoted else Multiple Downvoted. Don't submit random answer. Computer science. You are given an integer k and n particular focuses with integer facilitates on the Euclidean plane, the I-th point has arranges (xi,yi). Consider a rundown of all the n(n−1)2 sets of focuses ((xi,yi),(xj,yj)) (1≤i<j≤n). For each such pair, work out the separation from the line through these two focuses to the beginning (0,0). You will likely work out the k-th most modest number among these distances. Input The principal line contains two integers n, k (2≤n≤105, 1≤k≤n(n−1)2). The I-th of the following n lines contains two integers xi and yi (−104≤xi,yi≤104) — the directions of the I-th point. It is ensured that all given focuses are pairwise particular. Output You should output one number — the k-th littlest separation from the beginning. Your answer is considered right if its outright or relative blunder doesn't surpass 10−6. Officially, let your answer be…1.Translate the symbols into words using the following representations:P: Dianne is a college freshman.Q: Dianne is a class officer.a.P v Q b. P ^ Q c. ~P ^ Q d. P v ~Q e. P ⇔ Q2.Translate the words into symbols using the following representationsP: Jasmine is a student.Q Jasmine is a Filipinaa.Jasmine is a student and she is a Filipina.b.Jasmine is a student and she not is a Filipina.c.Jasmine is not a student nor is she a Filipina.d.If Jasmine is a student, then she is a Filipina.e.If Jasmine is not a Filipina, then she is not a student.3.Given the Conditional Statement. “If the angles in a triangle measures 450 – 450 -900, then it is an isosceles right triangle. Construct a statement as to the following:a.Conjunction b. Disjunction c. Negation d. BiconditionalSuppose you have been given a map of 6 cities connected with each other via different paths. Your job is to visit every city just once covering the minimum distance possible. Solve this problem using Genetic Algorithm. You can start at any point and end at any point. Just make sure that all the cities have been covered. 1. Encode the problem and create an initial population of 3 different chromosomes 2. Choose any one parent from your above solution and identify the following:i. Gene ii. Chromosome 3. Think of an appropriate fitness function to this problem and give proper justification. 4. Use the fitness function to calculate the fitness level of all the chromosomes in your population. Select the fittest 2 chromosomes based on the fitness function. 5. Perform crossover that you have been taught in the class on the selected parents. Now based on the offspring, for this problem do you think that is the best way to perform crossover? If not, explain why. 6. Perform mutation that you…
- I need a Multidimensional matrix to be made out of this input file for a DFS. A to B are points on a graph and 10 is the distance. A B 10 C 15B C 10 D 15C A 5D A 10 B 20 E 10E A 25 X 33- Please check my code for error. I'm trying to practice my learnings.- Implement this in MATLAB algorithms for: Linear Least Squares Regression - Include plots/graphs. close all;clear all;clc;current_script = mfilename('fullpath');script_directory = fileparts(current_script);file_name0 = 'data_00.csv';file_name1 = 'data_01.csv';file_name2 = 'data_02.csv';file_name3 = 'data_03.csv';data0 = csvread([script_directory '\' file_name0]);data1 = csvread([script_directory '\' file_name1]);data2 = csvread([script_directory '\' file_name2]);data3 = csvread([script_directory '\' file_name3]);avg_data = (data1 + data2 + data3) / 3;figure;plot (data0(:,1), data0(:,2), 'b-', 'LineWidth', 2, 'DisplayName', 'Parabolic Curve');hold on;plot(avg_data(:, 1), avg_data(:, 2), 'k-', 'Linewidth', 1, 'DisplayName', 'Average Data Points')scatter(data1(:,1), data1(:,2), 5, 'r', 'filled', 'DisplayName', 'Sample Data Points 1');scatter(data2(:,1), data2(:,2), 5, 'g', 'filled', 'DisplayName', 'Sample Data Points…GIVE authentic Answer: WEB TECHNOLOGIES GIVE COMPLETE Code display Outputs Consider the Marks against each students in different subjects Student Names Database Tot Marks : 60 PF Tot Marks : 80 Marketing Tot Marks : 60 Irfan 56 45 59 Salma 67 56 52 Inayat 54 40 48 Basharat 56 53 51 Store these details in the Multidimensional Associative Array. Display the output as shown here S# Student Name Obt: Marks %age= (Obt:Marks / 200) * 100.0 Grade 1 Iranf 160 80 B 2 Salma 175 87 A 3 Inayat 142 71 C 4 Basharat 160 80 B A >80% B (71-80%) C (61-70%) D(51-60%) F<50% Grade Summary Total A Grade = 1 Total B Grade = 2 Total C Grade = 1 Total D Grade = 0 Total F Grade = 0 Add complete set of…