3. -)Write a C function void swap (int* a, int* b) to interchange the values a and b. After the function call in the main the value of a goes into b, the value of b goes into a. See the sample run: Before call a = 5 and b = 9 After call a = 9 and b = 5

3. -)Write a C function void swap (int* a, int* b) to interchange the values a and b. After the function call in the main the value of a goes into b, the value of b goes into a. See the sample run: Before call a = 5 and b = 9 After call a = 9 and b = 5

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Add a function to get the CPI values from the user and validate that they are greater than 0. 1. Declare and implement a void function called getCPIValues that takes two float reference parameters for the old_cpi and new_cpi. 2. Move the code that reads in the old_cpi and new_cpi into this function. 3. Add a do-while loop that validates the input, making sure that the old_cpi and new_cpi are valid values. + if there is an input error, print "Error: CPI values must be greater than 0." and try to get data again. 4. Replace the code that was moved with a call to this new function. - Add an array to accumulate the computed inflation rates 1. Declare a constant called MAX_RATES and set it to 20. 2. Declare an array of double values having size MAX_RATES that will be used to accumulate the computed inflation rates. 3. Add code to main that inserts the computed inflation rate into the next position in the array. 4. Be careful to make sure the program does not overflow the array. - Add a…
Please fill in the blanks. /* This function asks for 2 strings from the user and asks the user to choose what they want to do with them. Inputs: 2 strings, and a character for choice. Output: execute that choice. Choices can be: 'E'/'e': call checkEqual() function 'C'/'c': call concatStrings() function Everything else: invalid and exit */ #include<__1__> //library to use printf and scanf #include<__2__> //library to use boolean #include<__3__> //library to use exit(0) #define len 1000 /*This function just concatenates 2 strings using a */ __4__ concatStrings(__5__ w1[], __6__ w2[], __7__ w3[]) { int w3_idx = 0; //index for w3 //Copy word1 w1 over to the combined string for(int i = 0; __8__ != __9__; i++) //loop runs as long as string is not done { __10__[__11__] = __12__[__13__]; //copy a character from w1 to w3 w3_idx++; //update…
Part (a) Write a python function that computes the binomial coefficient ("). The function should return the correct answer for any positive integer n and k where k=m pass Part (c) Suppose that the number of people in the trial is 100. Then: • Plot a curve that shows how the probability of type 1 error changes with the choice of m, for m = 1,...n assuming that the null hypothesis holds (in red), • On the same picture, plot the probability of type 2 error vs the value of m in the case in which the new drug is effective with proability 0.68 (in blue). You can plot the two curves using matplotlib.pyplot. You can select the color by passing color='r' or color='b' to the plt.plot() function. [4]: n - 100 # your code here def plot_curve (): pass [5]: plot_curve() Part (d) Based on the picture above, what value of m do you think would be suitable to keep both type 1 and type 2 error small at the same time? (You may assume that the company claims the new drug has 68% accuracy) [6]: # your…
I can both pass and return an array value from a function. Group of answer choices: True False this is for c++
8. using c++, Write a function method that determines the mean of all the values in an array of integers. Your mean function should call a separate function that you write that determines the sum. Don’t use built-in sum or mean gadgets, but roll your own.
5. use c code to Write a stringSearch function that gets two strings one called needle and the other called haystack. It then searches in the Haystack for the needle. If it finds it, it returns the index of where the needle starts in the haystack. If the needle cannot be found, it should return -1 Prototype: int stringSearch(char needle[], char haystack) Example1: Haystack: “This is just an example” Needle: “just” Result: 8 Example2: Haystack: “This is just an example” Needle: “This” Result: 0 Example3: Haystack: “This is just an example” Needle: “this” Result: -1 Hint: all the answer need to include an output and use c code to answer
Fix the following function prototype so that the variables are passed by reference, then write the function below. void swap(double x, double y); Hint: be consistent with your style.
[Python] Write a function called “add_spaces” that takes in an argument called “initial_string”. initial_string will always be a non empty string. The function should return the same string but with an added space in between all of the letters. If there are already spaces in the initial_string passed in, you should not add an extra space in between those spaces.
7. Write a function that evaluates the area of a pentagon. Use "math.pi", for pi, and "math.sqrt" for square root. Write the solution on the space provided below. You do not need to run the code. DII 3.2 (Geometry: area of a pentagon) Write a program that prompts the user to enter the length from the center of a pentagon to a vertex and computes the area of the pen- tagon, as shown in the following figure. 3√3 2 The formula for computing the area of a pentagon is Area -s², where s is TT the length of a side. The side can be computed using the formula s = 2r sin 5 = where r is the length from the center of a pentagon to a vertex. Here is a sample run:
3. Using c++ Write a function that accepts an integer n and returns -1 if n is less than zero and the sum of all the integers between 0 and n (inclusive) if n is greater than or equal to zero.
2. Modular arithmetic Write a function that returns the result of any integer modulo of n (i.e., reduce theinteger modulo n). Note that the C++ operator % can be used, but it returns a negativevalue, for example, -1 % 3 yields -1, so we need to do something adjustment (recallthat -1 mod 3 = 2 because -1= (-1)×3+2). Therefore, we will use the mod() functionfrom this step to implement the later encode() and decode() functions. /* precondition: n is greater than 1,a can be negativepostcondition: return a mod n (as defined in class)a mod n = r if and only if a = nk+r, 0 =< r < n (note thatr needs to be non-negative).*/int mod (int a, int n); -Please write in c++
Python (this is not graded this is practice work that is not graded) write and test a function which takes two dates (month, day) list arguments.When the function is called with the two arguments, it returns the number of days betweenthose two dates. Print the returned value. It is assumed that the first date occurs first. Forinstance, if the users calls the function with FUNCTION([12, 10], [12, 20]) as arguments, thereturned value is 10 days. However, if FUNCTION([12, 20], [12, 10]) is called, the returnedvalue is -10 days.Assume February has 28 days.Test data: [10, 30], [5, 20] [1, 30], [5, 25] [5, 25], [1, 30] [1, 1], [12, 31]