Securities Bao Www.baostock.com is a free, open-source securities data platform.Provide a large number of accurate and complete securities historical market data, listed company financial data, real-time securities market push services.Acquisition of securities data information through the Python API, to meet quantitative trading investors, quantitative financial enthusiasts, metering economic practitioners data needs. This introduction interface: Obtain complex weight
The filter method can be used not only to calculate the smallest number of primes, but also to find the maximum common factor of integers.Problem Link: POJ3048 HDU2710 Max Factor. Basic Training level questions, written in C language.Question Description: The test data has more than one group, each group input n, and then enter n positive integers, output n positive integers, the largest
How to Use OpenVPN and PrivacyIDEA to establish two-factor authentication Remote Access
For the company, IT has become a trend to allow employees to access the company's IT resources at home or on a business trip through the VPN remote access system. However, weak employee password management awareness and attacks by attackers using social engineering libraries often provide convenient channels for attackers. The two-
4514: [Sdoi2016] Digital pairing time
limit:10 Sec Memory limit:128 MBsubmit:726 solved:309[Submit] [Status] [Discuss]
Description There are n kinds of numbers, the first number is AI, there are bi, the weight is CI. If two digital AI, AJ satisfies, AI is a multiple of AJ, and Ai/aj is a prime number, then these two numbers can be paired and gain CIXCJ value. A number can only participate in a single pairing and may not participate in pairing. The maximum number of pairs to be paired, p
1 secondsMemory limit:32 MBSpecial question: Nosubmitted:4466Resolution:1375
Title Description:
The
number of the mass factor for a positive integer N (n>1). The same quality factor requires repeated calculations. such as 120=2*2*2*3*5, a total of 5 qualitative factors.
Input:
There may be multiple sets of test data, and the input to each
A long time ago to find the various information about the offset, today there are some people asked, I simply sent up, and then someone asked me to address directly! Explanation on the Unity document: https://docs.unity3d.com/Manual/SL-CullAndDepth.htmlOffsetFactor,UnitsAllows specify a depth offset with the parameters.factorandunits.factorscales the Maximum Z slope, with respect to X or Y of the polygon, andunitsscale the minimum resolvable depth buffer valu E. This allows-polygon to is drawn o
. #include "IO.h" 4. #include "math.h" 5.
#include "time.h" 6. 7. #define OK 1 8. #define ERROR 0 9. #define TRUE 1 10. #define FALSE 0 11.
#define MAXSIZE 100/* Storage space Initial allocation */12. typedef int STATUS;
/* Status is the type of the function whose value is the function result status code, such as OK, etc. */14. 15.16. /* Two fork tree two-fork linked list node structure definition */17. typedef struct BITNODE/* Node structure */18. {. int data; /* Node Data */2
LongXLong Longt) { Long Longret=Pow_mod (a,x,n); Long Longlast=ret; for(intI=1; i) {ret=Mult_mod (ret,ret,n); if(ret==1last!=1last!=n-1)return true;//Compositelast=ret; } if(ret!=1)return true; return false;}//Miller_rabin () algorithm prime number determination//is a prime number that returns True. (May be pseudo prime, but with minimal probability)//composite returns false;BOOLMiller_rabin (Long LongN) { if(n2)return false; if(n==2)return true; if((n1)==0)return false;//even Long
The C language implementation of daffodils prime numbers prime factor decomposition, and daffodils vb
Recently, I flipped through the C language textbooks and read three interesting small programs, including: search for "Daffodils", judge whether a number is a prime number, and perform prime factor decomposition on a number. I want to put these three items in a program and write this article.
Algorithm s
("600680")v = df[-90: ].volumev.plot("kde")plt.show()Generally know that the stock in the volume of less than 20000, or volume greater than 80000, it should be increased vigilance!3. Distance/density basedTypical algorithm is: "Local anomaly factor algorithm-local outlier Factor", the algorithm through the introduction of "k-distance, K distance", "K-distance neighborhood, K distance Neighborhood", "Reach-d
Problem descriptionThere is a sequence that fancycoder is addicted to studying the product-related problems of this series, but their product is often very large. Fortunately, Fancycoder only needs to find the smallest factor that satisfies the following rules: This factor contains more than two factors (including itself; for example, 4 has 3 factors, so it is a number that satisfies this requirement). You
Topic Link: PortalTest instructionsMinimum (x!) = 0 mod (a1^b1*a2^b2...an^bn)Analysis:First of all, a1~an the factor decomposition, and then the index of each mass factor, because with the increase of X, the number of mass factor is gradually increasedSo we can two x, the x! to determine whether the factor decompositio
Topic Link: PortalAnalysis:Ask A (n,m) to convert to the number of the end 0 after the K-binary. The k factor decomposition, the first factor is fac[i],The index of the first factor is num[i], and then to the N of a (n,m) factor decomposition, set count[i]Represents fac[i] corresponding exponent, ans = min{count[i]/num
Toot TootTo give a number x, let you ask for such a longest sequence, and the longest sequence of the number of species:1. The No. 0 item is 1, and the last item is x (the sequence length does not count the two).2. Each item is a factor of x.3. For any AI and Ai+1,ai Each item is a factor of x, then the first decomposition of x factorization, the number of these numbers must be X
Factor and factorial time limits: +Ms | Memory Limit:65535KB Difficulty:2
Describe
Give you a positive integer n, the n!=1x2x3x.....xn decomposition into a factor multiplication form, and from small to large output of each factor index, but to ensure that the final output of the number of elements is not 0. For example 825 should be expr
Given a number X.
1 = x0, X1, x2.... XM = x is the factor of X.
For a series of factors, Xi | Xi + 1 is required, that is, the last factor can be divisible by the next factor,
Ask the maximum length of the string, and how many strings with such length.
X = p1 ^ A1 * P2 ^ A2... PN ^
Xi = p1 ^ B2 * P2 ^ B2... PK ^ BK... PN ^ bn,
XI + 1 = p1 ^ B2 * P2 ^ B2... PK ^
In the height of a non-replaceable element in the line frame, the font-size and line-height determine the height. The formula for calculating the zoom factor of the row height is as follows:
The font-size value multiplied by the line-height scaling factor is equal to the line-frame height, that is, the font size plus the row spacing.
For example:
Font-size: 12px;
If the spacing between the upstream and
Sumdiv
Time limit:1000 ms
Memory limit:30000 K
Total submissions:16109
Accepted:3992
DescriptionConsider two natural numbers a and B. Let s be the sum of all natural divisors of a ^ B. Determine s modulo 9901 (the rest of the division of S by 9901 ).
InputThe only line contains the two natural numbers A and B, (0 OutputThe only line of the output will contain in S modulo 9901.
Sample Input
2 3
Sample output
15
Hint2 ^ 3 = 8.
The natural divisors of 8 are: 1,
The optimization of the site competition is growing, every day there are more and more Web sites generated, at any time to create threats to us, we also want to go beyond our stronger competitors every day, then how can we better surpass our competitors? I think this is the core factor of every webmaster friend's thinking, We need to think about how to better the Web site weight up, how to improve the keyword rankings beyond competitors, so today to s
In the study of various resonant circuits, often involves the quality factor Q value of the circuit question, then what is the Q value? Let's make a detailed discussion below.
1 is a series resonant circuit, which consists of capacitance C, inductance L and the capacitance of the leakage resistance and inductance of the line resistance R. The complex impedance Z of this circuit is the sum of the complex impedance of three elements.
z=r+jωl+ (-j/ωc) =r
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