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. Instead He gave you an array a1, A2, ..., Aksuch that In other words, n was multiplication of all elements of the given array. Because of precision difficulties, Barney asked you to tell him the answer as an irreducible fraction. In all words need to find it as a fraction p/q such that, where is the greatest common divisor. Since p and Q can be extremely large, you have need to find the remainders of dividing each of the them by 109 + 7. Please note

/* Factorization is a very basic mathematical operation and is widely used. The followingProgramReturns the factorization of integer n (n> 1. For example, if n is 60, the output is 2 2

Method One: Recursive algorithm Method Two: Do not have recursion Using System; Using System.Collections; Using System.Collections.Generic; Using System.Text; Namespace Test {public class Class1 {private ArrayList list = new ArrayList (); Public Class1 () {} public Class1 (int num): base () {int i; for (i = 1; I Method Three: Use the loop to realize public long getnumber (int pos) { long one =

What is a file descriptor. A file descriptor is a simple positive integer that identifies each file and socket that is opened by the process. The first three file descriptors (0,1,2) correspond to standard input (stdin), standard output (stdout), and standard error (STDERR) respectively. difference between "2>

/***** JSON = [{ID: 1}, {ID: 2}] convert "[{ID: 1}, {ID: 2}] "*****/Jsontostring = function (OBJ ){If (OBJ = undefined ){Return "";}VaR r = [];If (typeof OBJ = "string") Return "\" "+ obj. replace (/([\ "\])/g," \ $1 "). replace (/(\ n)/g, "\ n "). replace (/(\ r)/g, "\ r ")

Int W [2] [3], (* PW) [3]; PW = W;Which of the following is false?A. * (W [0] + 2)B. * (PW + 1) [2]C. Pw [0] [0]D. * (PW [1] + 2) This evening I carefully studied the multi-dimensiona

Remove any 2 numbers from the array to determine whether they are the input number sum, the time complexity is 0 (n^2), and the spatial complexity of 0 (1)Assuming the data is already sorted.#include 　　Remove any 2 numbers from th

It is known that w is an unsigned integer greater than 10 but not greater than 1000000. If w is an integer n (n ≥ 2), the number of the last n-1 digits of w is obtained ., Known positive integer n greater than 30 Description It

[Problem] 1. Division is not required. Two arrays A [n], B [N], where each element value of a [n] is known, and B [I] is assigned a value, B [I] = A [0] * A [1] * A [2]... * A [N-1]/A [