pacman squares

Reprint Please specify source: http://blog.csdn.net/lsh_2013/article/details/46697625Least squares (also known as the least squares method) is a mathematical optimization technique. It matches by minimizing the squared error and finding the best function of the data.The C + + implementation code is as follows:#include Copyright NOTICE: This article for Bo Master original article, without Bo Master permissi

We know that in two-dimensional coordinates, it is known that two o'clock can determine a linear equation, if there is n number of points (x1,y1), (x2,y2),... (Xn,yn), then there will be n linear equations, we use the least squares to fit an optimal linear equation from these n equations, that is, to find out the parameters of the equation, a, bThe expression for a known unary linear equation is:Y=a+bxThere is a set of weighted equal measurement data

Time limit:1000MS Memory Limit:32768KB 64bit IO Format:%i64d A mp %i64u DescriptionGiven a continuous number of integers, the sum of squares of all even numbers is calculated and all the odd cubic and.InputThe input data contains multiple sets of test instances, each containing a row consisting of two integers m and N.OutputFor each set of input data, the output line should consist of two integers x and y, representing the sum of all the even

/** 279. Perfect squares * 2016-6-26 by Mingyang * Similarly, the options here are all smaller than their own Perfect square * numbers Dp[n] indicates t Hat the perfect squares count of the given N, * and we have: * Dp[0] = 0 * Dp[1] = dp[0]+1 = 1 * dp[2] = Dp[1]+1 = 2 * dp[3] =dp[2]+1 = 3 * Dp[4] = min{dp[4-1*1]+1, dp[4-2*2]+1} * = min{dp[3]+1,dp[0]+1 } * = 1 * dp[5] = min{dp[5-1*1]+1, dp[5-2*2]+1} *

I. Title DescriptionGiven a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, ... ) which sum to n .For example, given n = 12 , return 3 because 12 = 4 + 4 + 4 ; given n = 13 , return 2 because 13 = 4 + 9 .Two. Topic analysisThe main idea of this topic is to give a target integer that calculates the minimum number of the target integer by the total sum of squares.A better solution is to use dynamic planning. We all know that a number x can be decompos

Dominoes Shop SquaresTime limit:2000/1000 MS (java/others) Memory limit:65536/32768 K (java/others)Total submission (s): 30790 Accepted Submission (s): 14905problem DescriptionIn a rectangular square of 2xn, fill the squares with a 1x2 domino, enter N, and output the total number of paving schemes.For example, when n=3, for 2x3 squares, the Domino placement scheme has three kinds, such as:InputThe input d

Title DescriptionDescriptionA square chart with n*n (nSomeone from a point in the upper left corner of the picture, you can walk down, or to the right, until you reach the lower right corner of point B. On the way, he can take the number in the squares (the squares will change to the number 0).This person from point A to point B to walk two times, try to find out 2 such paths, so that the sum of the obtaine

Pick your own self-insight:In fact, in the calculation of the amount of the two are very different, so in the face of a given problem, you can selectively choose one of two methods according to the nature of the problem.Specifically, the matrix formula for the least squares is that a is a matrix and B is a vector. If there is a discrete data point, and the equation you want to fit is roughly the same, then A is a matrix, the data points of row I are,

Seeing 1e9 of the data basically excludes the possibility of violence. If a number can be represented by the sum of squares of two numbers, then these two numbers must not exceed his square root. So the basic idea is to first give the input of this number, reduce the amount of data, enumeration 0 to sqrt (number), and then to [0,sqrt (number)] This interval two to find whether there is such a number so that his square plus the previous enumeration of

Walk through squares Time Limit: 4000/2000 MS (Java/others) memory limit: 65535/65535 K (Java/Others)Total submission (s): 944 accepted submission (s): 277 Problem description On the beaming day of 60th Anniversary of njust, as a military college which was Second Artillery Emy of Harbin Military Engineering Institute before, queue phalanx is a special landscape. Here is a m * n rectangle, and this one can be divided into M * n

Sherlock and Squares, sherlocksquares // Link Https://www.hackerrank.com/challenges/sherlock-and-squares 1 from math import sqrt # What to use, what to introduce, reduce waste and error possibilities 2 3 4 def main (): 5 t = int (raw_input ()) 6 for _ in range (t): 7 squares = 0 8 a, B = map (int, raw_input (). strip (). split ('') 9 temp = int (sqrt (a) # Set

Test instructionsGive a diagram of how many squares of different sizes or positions are different.Analysis:This kind of question has the idea, the first idea is enumerates the square position, needs the double circulation, the enumeration side long one heavy circulation, the judgment is the square and needs a heavy circulation, the complexity is O (N4), for n≤9, this complexity is acceptable.You can use the time of O (1) to determine whether it is a s

Problem uva12113-overlapping Squaresaccept:116 submit:596time limit:3000 mSec problem DescriptionInputThe input consists of several test cases. Each test case is a contained in-ve lines and each line contains nine characters. If the horizontal border of a? lled square is visible it's denoted with "(ASCII value) sign and if vertical border of a? lled square is visible then it's denoted with ' | ' (ASCII value 124) character. The board contains no other character than ', ' | ' and of course ' (ASC

D. Spongebob and SquaresSpongebob is already tired trying to reason his weird actions and calculations, so he simply asked you to find all pairs Of N and M, such that there is exactly x distinct squares in the table consisting of n rows and m columns. For example, in a 3x5 table there is 15squares with side one, 8 squares with side and 3 squares W ITH side Thr

Because I am in the project to use the least squares fitting, all of my time to the C + + implementation of the program to the Java implementation, now posted out for everyone to refer to the use./*** * @param x Real one-dimensional array of length n. The X-coordinate of the given n number of locations* @param y Real one-dimensional array of length n. Holds the Y-coordinate of a given n number of locations* @param n variables. Number of given data poi

1 ImportNumPy as NP2 3 defSumsquareerror (dataset,a):4 #Enter the target dataset with the assumed curve function, calculate the sum of squared errors5 #data form Dataset[i] = [X,y],y = Hypfunc (x)6 #A: Polynomial coefficients [a0,a1,..., an-1]7Hypresult = [Hypfunc (dataset[i,0],a) forIinchRange (dataset.shape[0])8SSE = Np.sum ((hypresult-dataset[:,1]) **2)9 returnSSETen One defHypfunc (x,a): A #Input: X horizontal value, A polynomial coefficient [a0,a1,..., an-1] - #retu

Importjava.util.ArrayList;Importjava.util.Collection;ImportOrg.apache.commons.math3.optim.PointValuePair;ImportOrg.apache.commons.math3.optim.linear.LinearConstraint;ImportOrg.apache.commons.math3.optim.linear.LinearConstraintSet;Importorg.apache.commons.math3.optim.linear.LinearObjectiveFunction;Importorg.apache.commons.math3.optim.linear.Relationship;ImportOrg.apache.commons.math3.optim.linear.SimplexSolver;ImportOrg.apache.commons.math3.optim.nonlinear.scalar.GoalType; Public classMathtest {