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Computer Science: A Structured Programming Approach Using C, Third Edition
- 7. Given the following code, what initial values for num will cause an error during execution? int mystery(int num) { if (num 0) == return 0; else if (num 0 B. num > -100 and num < 0 C. num < 0 D. None of these will cause an error.arrow_forward7. Given the following code, what initial values for num will cause an error during execution? int mystery(int num) { if (num 0) == return 0; else if (num 0 B. num > -100 and num < 0 C. num < 0 D. None of these will cause an error. 8. For the code in the previous problem, what will happen if the initial value of num is invalid?arrow_forwardWrite code that iterates while userNum is less than 12. Each iteration: Put userNum to output. Then, put "/" to output. Then, assign userNum with userNum multiplied by 3.arrow_forward
- What will be the value of x after the following code is executed? int x = 0; while (x < 50) { x += 20; } 50 20 40 60arrow_forwardAssuming the code x = 3 - 6 + 5 - 5 * (++x) ; has been executed correctly, what is the value of integer x?arrow_forwardWrite a flowchart and pseudocode like this: Pseudocode: Start inputmyNumber Set myAnswer-myNumber * 10 output myAnswer 1.The Dash Cell Phone Company charges customers a basic rate of $5 per month to send text messages. Additional rates are as follows: The first 100 messages per month, regardless of message length, are included in the basic bill. An additional three cents are charged for each text message after the 100th message, up to and including 300 messages. An additional two cents are charged for each text message after the 300th message. Federal, state, and local taxes add a total of 14 percent to each bill. THANKYOUUarrow_forward
- Exercise III: Catalan numbers For n e N, denote by c, to be the number of ways to form a "mountain range" with n upstrokes (U) and n downstrokes (D) that all stay above a horizontal line. For instance: for n = 1, only UD is allowed, so c = 1; • for n = 2, only UUDD and UDUD are allowed, so c2 = 2. 1. Check that c3 = 5 by writing down or drawing all possible options. 2. Consider the power series +00 g(x) = 2 n=0 (by definition co = 1) called the generating function of the sequence (en). Justify that cn < 4" for each n, and deduce that the radius of convergence of g is at least 1/4. 3. It can be show that for r E (-1/4, 1/4), g(x) = 1+ xg(r)? and therefore 1- VI 4.x g(x) = 2.x Use this formula and the known power series of V1+ x to write the first terms of the power series expansion of g, in the form g(x) = co + c1x + c2x2 + C3x + c4x* + ·.. Show how you obtain a few terms, but you do not need to show all computations and you can use a calculator for fractions. Check that you recover co,…arrow_forwardWhat is the result of the following code? x = 10 y = 15 print(x = y)arrow_forwardAfter the following statements, what are the values of x and y? * x = 15 y = x x = 22 x is 15 and y is 15 x is 22 and y is 22 O x is 15 and y is 22 x is 22 and y is 15arrow_forward
- You are required to write a code that requests the user to enter three integer coefficients: a, b, and c in this order. Next, the user is requested to enter the equation degree: 1 for a linear equation and 2 for a quadratic equation. If the user enters an equation degree other than 1 or 2, the program must output Invalid. Based on the equation type, the program will process the coefficients and provide outputs as described below: First Scenario: Linear Equation When a linear equation is selected, the coefficient a is ignored and the equation format becomes: y=bx+c The program should check the slope of the line and accordingly print the values of the x-intercept, the y-intercept, and the line direction with respect to the x-axis each on a separate line. We have four possibilities: Slope is positive (i.e. b > 0): x-intercept = −cb, y-intercept = c, direction is UpwardSlope is negative (i.e. b < 0): x-intercept = −cb, y-intercept = c, direction is DownwardSlope is zero (i.e. b = 0)…arrow_forwardYou are given a list of students’ names and their test scores. Write pseudo code that does thefollowing:a. Calculates the average test scores.b. Determines and prints the names of all the students whose test scores are below the average testscore.c. Determines the highest test score.d. Prints the names of all the students whose test scores are the same as the highest test score.arrow_forwardWhat is the output of the following code segment? int num= 20, y = 5, x; cin>>X; if (x >= 2*num) y+=1; else if (x >= num) y+=2; if (xarrow_forward
- Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,