discrete flask

number of squares that can be coated with K is a+n-b, The number of squares that can only be painted in K-1 is x*n-(a+n-b); the coloring scheme for x lines is temp=k^ (a+n-b) * (K-1) ^ (x*n-(A+n-b)) and if temp=r, temp is the answerAgain consider the case of line x+1, if the X Act is not a color of the lattice, then the next row of its adjacent lattice coloring scheme is K, otherwise K-1, the number of K-1 can be painted C, then temp=temp*k^c* (K-1) ^ (n-c), if temp=r, then temp is the answerTh

Discrete Logging Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 4236 Accepted: 1948 DescriptionGiven a prime P, 2 BL = = N (mod P)InputRead several lines of input, each containing p,b,n separated by a space.OutputFor each line print the logarithm to a separate line. If There is several, print the smallest; If there is

POJ 2417 Discrete Logging BSGS Discrete Logging Time Limit:5000 MS Memory Limit:65536 K Total Submissions:4011 Accepted:1849 DescriptionGiven a prime P, 2 BL == N (mod P) InputRead several lines of input, each containing P, B, N separated by a space. OutputFor each line print the logarithm on a separate line. If there are several, print the smallest; if there is

ways. Sample Input 35 510 110 128 Sample output Case #1: 22Case #2: 1023Case #3: 586 Question: Give a number ranging from 1 to n and ask how many subsets of LCM are greater than or equal to M. Idea: m is very large, and the subset also has 2 ^ 40, but it is found that the minimum public multiple range is only more than 40 thousand, therefore, we can use DP [I] [J] to indicate that the minimum public multiples of the first I count are the number of J schemes, and the results of the minimum

bandwidth in the frequency domain. It is impossible to have signals and sequences with limited time domain length and frequency domain bandwidth. In addition, if the time domain is narrow, the frequency bandwidth is used. Dtft is time discrete, while the frequency domain is continuous. In Matlab, the special function is [h, w] = freqz (B, A, N ). If n is not specified, 512 is used by default. Here, B is the sequence X, and A is 1. In this way, onl

1) Bar chartBar charts are perhaps the most commonly used graphics, often used to show the relationship between categories (different categories on the x-axis) and values (numeric values on the y-axis). Sometimes the bar heights represent counts of cases in the data set, and sometimes they represent values in the data set (with The bar chart height represents the frequency (count) in the dataset, and sometimes represents the values in the dataset, which should be kept firmly in mind, otherwise c

See an interesting article on the Internet "the key to the girl of discrete Mathematics"Just use JS to write the above-mentioned pairing method:First set the variable //Boys Ideal List varMenpreference ={A: [1, 2, 3, 4, 5], B: [1, 3, 4, 2, 5], C: [3, 2, 1, 4, 5], D: [4, 5, 2, 3, 1], E: [5, 2, 1, 4, 3] }; //Girls Ideal List varWomempreference = { 1: [' A ', ' B ', ' C ', ' D ', ' E '], 2: [' B ', ' D ', ' A ', ' E ', ' C '], 3: [' E ', ' B ',

Naive Bayesian method is a classification method based on Bayesian theorem and independent hypothesis of feature conditions. Simply put, the naive Bayes classifier assumes that each feature of the sample is irrelevant to any other feature. For example, a fruit can be judged to be an apple if it has features such as red, Circle, and about 4 inches in diameter. Although these characteristics are interdependent or some characteristics are determined by other characteristics, the Naive Bayes classif

Discrete cosine transformation (DCT) Discrete Cosine Transform DCT (discrete cosine transform) is a common conversion encoding method for digital rate compression. The Fourier transformation of any continuous real-symmetric function only contains the cosine. Therefore, the cosine transformation has the same physical meaning as the Fourier transformation.

This section has the following main contents:(1) Discrete random variablesIf the result of a randomized trial can be represented by a variable, then such a variable is called a random variable . The random variables that all values can be listed are called discrete random variables .(2) Distribution columns of discrete random variablesGenerally, if the

??Recently in the implementation of the algorithm, the feeling of lack of knowledge of mathematics, here -------------------------------------------------- calculus --------------------------------------------- ------------- Calculus Open Class: mit: univariate calculus http://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/ Http://v.163.com/special/sp/singlevariablecalculus.html mit: Many variable Calculus Http://ocw.mit.edu/courses/mathematics/18-02sc-multivariable-c

Machine learning will encounter some discrete data, can not be brought into the model for training, so to encode it, there are two commonly used encoding methods:1, the characteristic does not have the size significance direct single-heat code (One-hot encoding)2, the characteristics of the size of the significance of the use of mapping Coding (map encoding)There are two kinds of coding in the Sklearn.preprocessing package implementation methodMapping

The two-dimensional discrete Fourier transform of image (MxN) can transform the image from the spatial domain to the frequency domain, the spatial coordinates are represented by x, y in the space domain, the frequency domain is represented by u,v, and the formula of the two-dimensional discrete Fourier transform is as follows:In Python, the FFT module of the NumPy Library has a two-dimensional

Timus 1010. The discrete function requires that the given discrete function be used to locate the greatest dip in the line of the corresponding point in the Cartesian coordinate system. 1010. discrete function Time Limit: 1.0 secondMemory limit: 16 MBThere is a discrete function. It is specified for integer arguments

How to automatically draw contour lines (contour lines) based on discrete points: Triangle Method Introduction, contour lines The automatic contour drawing method can be divided into two categories: Interpolation and curve fitting. in general, the effect of curve fitting is not as good as that of the classic and widely used interpolation algorithms, and the effect is also inferior. this section focuses on interpolation algorithms. In the interpolati

Discrete variable refers to the variable can only take discrete isolated values, usually by the number of units of measurement, such as number, number of units. Many of the distributions of discrete variables are related to last, so let's take a look at the last experiment:In the same condition, repeated and independent experiments of each other have become last.

??Recently, when implementing algorithms. Feel the lack of knowledge of mathematics, here-------------------------------------------------- calculus --------------------------------------------- -------------Calculus Open Class:mit: univariate calculushttp://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/Http://v.163.com/special/sp/singlevariablecalculus.htmlmit: Many variable CalculusHttp://ocw.mit.edu/courses/mathematics/18-02sc-multivariable-calculus-fall-2010/inde

 Recently in the implementation of the algorithm, the feeling of lack of knowledge of mathematics, here-------------------------------------------------- calculus --------------------------------------------- -------------Calculus Open Class:mit: univariate calculushttp://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/Http://v.163.com/special/sp/singlevariablecalculus.htmlmit: Many variable CalculusHttp://ocw.mit.edu/courses/mathematics/18-02sc-multivariable-calculu

LRJ petition on the question#include #include#include#include#includeSet>#include#include#include#includestring.h>#includestring>using namespaceStd;typedefLong LongLL;ConstLL mod=1e8+7;Const intn=505; LL N,m,k,b,r,x[n],y[n];Setbset;voidEXGCD (LL a,ll b,ll d,ll x,ll y) { if(!B) {d=a;x=1; y=0;} Else{EXGCD (b,a%b,d,y,x); y-=x* (A/b);}} ll Pow_mod (ll A,ll p) {ll ans=1; while(p) {if(p1) ans= (ans*a)%MoD; P/=2; A= (a*a)%MoD; } returnans;} LL INV (ll a) {ll d,x,y; EXGCD (A,mod,d,x,y); ret

Discrete Logging, discreteloggingDiscrete Logging Time Limit:5000 MS Memory Limit:65536 K Total Submissions:5865 Accepted:2618 DescriptionGiven a prime P, 2 BL == N (mod P) InputRead several lines of input, each containing P, B, N separated by a space. OutputFor each line print the logarithm on a separate line. If there are several, print the smallest; if there is none, print "no solution ". Sample Input 5 2