Answered: a) for (i = 0; i

Engineering

Computer Science

a) for (i = 0; i

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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Q:1 a) Can a predefined function be recursively called by the programmer? Elaborate. b) Write a program in C to take input for an integer.If the given integer is prime then display the product of its digits otherwise check whether it is even or odd.Use minimum three functions including main function.
Refer to Code Segment 1 and Code Segment 2. Assume variables have been declared accordingly with their appropriate data type; and value for n is user supplied. Line numbers are provided for easy referencing. Line Code Segment 1 (1) (2) (3) (4) (5) (6) for i = 1 to n { for j = 1 to n { val = i*j print val Line Code Segment 2 (1) (2) (3) (4) (5) (6) for i = 1 to n *n { r = (i-1) /n c = (i-1) % n val = (r+1) * (c+1) print val Answer the questions below: 1. Both Code Segments 1 and 2 perform the same task AND the execution time of Code Segment 1 scales slower than the execution time of Code Segment 2 as we increase n. Write TRUE if the statement is true, FALSE otherwise. 2. In Code Segment 1, how many times will line 4 be executed in terms of n? 3. In Code Segment 2, how many times will line 5 be executed in terms of n?
Call by value in programming means that a copy of variable value is pased from function calling part to function definition part. Call by reference means that an address of variables are passed from calling part to function definition. arrow_forward Step 2 Call by reference is used to avoid extra memory usage because in call by reference same variables addresses are passed. Any changes made will reflect back. So it doesn't require extra variable to hold data. Call by value in programming is used where memory storage is not concern. Scenario in which actual value must not be disturbed then in these type of cases, call by value is used. We can't use only one because user requirement changes. Sometimes user tella actual data should be preserved and he/she want any data processing, in such scenario programmers use call by value. Some users only want calculated result. In such cases, programmers use call by reference to preserve memory usage. So it is totally dependent on user…
#4. Euler's totient function, also known as phi-function ϕ(n),counts the number of integers between 1 and n inclusive,which are coprime to n.(Two numbers are coprime if their greatest common divisor (GCD) equals 1)."""def euler_totient(n): """Euler's totient function or Phi function. Time Complexity: O(sqrt(n)).""" result = n for i in range(2, int(n ** 0.5) + 1): if n % i == 0: while n % i == 0: n //= i.
Objective: Practice writing recursive functions in python3 Make the five recursive functions described below in python3 by using the starter code recursive_functions.py. For each function, figure out how to solve it conceptually : write down the base case (when recursion stops) and how each recursive function-call moves towards the base case. The functions should not print anything (except you may add temporary print statements to help debug them). You can test your program by using the provided program test_recursive_functions.py. Don't edit the test program. Put it into the same directory (folder) with your recursive_functions.py and run it. It will import your functions as a module, test your functions, and tell you when each function is returning correct results. 1. Factorial In math, if you have a number n, the factorial function (written n!) computes n x (n-1) x (n-2) x (n-3) x ... x 1. For example: 0! is defined to be 1 1! = 1 2! = 2 x 1=2 3! = 3 x 2 x 1=6 4! = 4 x 3…
4- The function sum_n_avg computes the sum and the average of three input arguments and relays its results through two output parameters. a) Write a prototype for a function sum_n_avg that accepts three double-type input parameters and returns two output parameters through reference (the sum and average). b) Write the function definition for function sum_n_avg. The function definition is where the actual computations are performed. c) Write a function call in main () for sum_n_avg. The function call can look like below: { double one, two, three, sum_of_3, avg_of_3; printf("Enter three numbers> "); scanf ("%lf%lf%lf", &one, &two, &three); sum_n_avg (, }
Describe what the following code is doing (the outcome), by annotating each line of code and giving an overall description of the function of the code. Also, perform a desk check (trace) of the program. Must show multiple iterations of the program loops in the desk check (trace). MOV RO, #100 MOV R1, #2O Loop: CMP RO, R1 BEQ Stop BLT Less SUB RO, RO, R1 BAL Loop Less: SUB R1, R1, RO BAL Loop Stop: MOV R7, #1 SWI O
(a) tist; this should accept a list as an argument and return the index of the smallest Write a python function to recursively find the minimum value in a item. For example given the list as follows: [9,-2,6,1,80,9,-2], your function should return either 1 or 6 (which are the indices of -2).
If you have trouble reading the picture please let me know. 8. (a) Write behavioral Verilog code for a module called “Sort2” (pictured below) with three inputs s, a, b and two outputs x, y. The module’s function is also described below; in the function table, a “–” represents a don’t care. Also the function table has s, a as inputs, but the outputs x, y are expressed in terms of the third input b. In words, the “function table” to the left translates to the following: When s = 0, the smallest value among a and b goes to x and the other value goes to y. When s = 1, the largest value among a and b goes to x and the other value goes to y. (b) Structurally connect copies (or instantiations) of the module Sort2 to construct the module Bitonic with four inputs a0,a1,a2,a3 and four outputs z0,z1,z2,z3 shown below; each box in the figure below represents an instantiation of Sort2. Further, the inputs and outputs of the instantiations are located as in the figure above; namely, input to…
Note: It`s python code Implement the following code:1) Define a function prodTwo which returns the product of two input parameters, x and y.2) Call the prodTwo function with 4 and 5 as arguments.3) Print the result of the function call. Example Output (4 and 5 are arguments)20
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++
1-The function sum_n_avg computes the sum and the average of three input arguments and relays its results through two output parameters.a)Write a prototype for a function sum_n_avg that accepts three double-type input parameters and returns two output parameters through reference.b)Write the function definition for function sum_n_avg. The function definition is where the actual computations are performed.c)Write a function call in main () for sum_n_avg. The function call can look like below:{double one, two, three, sum_of_3, avg_of_3;printf("Enter three numbers> ");scanf("%lf%lf%lf", &one, &two, &three);sum_n_avg(__________________________________);. . .}2- Write a function definition for a function named final_grade that has a typeint input parameter called points and returns through an output parameter gradePtr the appropriate letter grade using a straight scale (90–100 is an A, 80–89 is a B, and so on). Return through a second output parameter (missedPtr) an…