3.(a) Given the following C++ code: #include using namespace std; int main() { string *p = string; *p="Scout Doesn't Know...\n"; cout << *p; delete p; return 0; The program above supposes to create a dynamic variable and store the sentence "Scout Doesn't know.". Next, print the content in the dynamic variable and delete the dynamic variable. (i) Explain what is wrong with the above code. (ii) Modify the above program to provide the correct C++ code.

3.(a) Given the following C++ code: #include using namespace std; int main() { string p = string; p="Scout Doesn't Know...\n"; cout << *p; delete p; return 0; The program above supposes to create a dynamic variable and store the sentence "Scout Doesn't know.". Next, print the content in the dynamic variable and delete the dynamic variable. (i) Explain what is wrong with the above code. (ii) Modify the above program to provide the correct C++ code.

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter3: Assignment, Formatting, And Interactive Input

Section: Chapter Questions

Problem 1PP: (General math) a. Write a C++ program to calculate and display the value of the slope of the line...

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General math) a. Write a C++ program to calculate and display the midpoint coordinates of the line segment connecting the two endpoints given in Exercise 1a. Use the fact that the coordinates of the midpoint between two points with the coordinates x1,y1)and(x2,y2)are((x1+x2)/2,(y1+y2)/2). Your program should produce the following display (replacing the underscores with values your program calculates): ThexmidpointcoordinateisTheymidpointcoordinateis b. How do you know the midpoint values your program calculates are correct? c. After verifying the output your program produces, modify it to determine the midpoint coordinates of the line connecting the points (2,10) and (12,6). d. If your program doesn’t already do so, change its output to this: The x coordinate of the midpoint is xxx.xx The y coordinate of the midpoint is xxx.xx The xxx.xx denotes placing the calculated value in a field wide enough for three places to the left of the decimal point and two places to the right of it.
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