This is an computer programming question. How do use the Parse method of the decimal class instead of the CDec function?

I'm trying to create a c program that will take in a ten-digit ISBN number and then check to see if the number is valid by calculating its weighted sum. This is the code that I have up to know, but I'm not sure what to do next. Can you give me some pointers? DOCUMENTATION-------------This program will determine if an ISBN number is valid by calculating its weighted sum.********************************************************************/#include <stdio.h>#include <stdbool.h> #define ISBN_SIZE 10#define MOD_NUM 11 void printInstructions(void);void getIsbn(int isbnArray[]);void printIsbn(int isbnArray[]);int calculateWeightedSum(int isbnArray[]);bool isIsbnValid(weightedSum);void printGoodbye(void); int main(){int isbnArray[ISBN_SIZE] = {0}; printInstructions();getIsbn(isbnArray); printf("\n\nThe ISBN ");printIsbn(isbnArray); if(isIsbnValid(calculateWeightedSum(isbnArray))){printf(" is valid.");}else{printf(" is not valid.");} printGoodbye(); return 0;}...

PYTHON Code your own Python function to solve Ax=b. Add a documentation string section to be used with the Python function help() function. Demonstrate the function is correctly implemented, and explain your testing approach.

Some of the earliest computer games developed were Interactive Fiction games, in which the user’s environment is described in text, and the user makes choices using text commands. In this problem and the next one, we’ll be developing a very simple text-based adventure game. Every choice in this game will have exactly three options, so we can write a function that works for any of them. Write a function selection(text, optionA, optionB, optionC), that takes in four string values. text is a string representing a prompt in a text adventure game, and optionA, optionB, and optionC are strings representing the three possible options. The function should print out the text, and then print out the options (label them with A., B., and C.). Next, the input() function should be used to prompt the user to choose A, B, or C. Then the function should return (not print) the one character string that represents the user’s choice: 'A', 'B', or 'C'. If the user does not choose one of those...

Using C++. Write a program using recursive a function to generate the following pattern of stars: ** ** * ** * * ** * ** ** Also, the program should prompt the user to enter the number of lines inthe pattern and uses the recursive function to generate the pattern. Forexample, specifying 4 as the number of lines generates the preceding pattern.

Suppose that you have the following recursive function written in C++. I've intentionally written the function so that it doesn't use descriptive names for anything, though that's obviously not a good design practice, but I aim not to bias your understanding of the techniques you'll be using by assuming anything about what the function's goal is; to stay "on task" here, you should resist the temptation to try to figure that out first. void kaboom( const std::vector& v, std::vector& w, unsigned int i) { if (i < w.size()) { int q = 0; for (int j : v) { q += j; } w.at(i) - kaboom(v, w, i + 1); } = q; } 1. Using the techniques from our discussion of the Asymptotic Analysis of Recursion, write a recurrence that describes the time required to run the following call to kaboom for two vector v and w whose sizes are the same. Use the variable s in your recurrence to denote that size. kaboom(v, w, 0) 2. Using the repeated substitution technique, reduce the recurrence to a closed form, then give...