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### Question Description

Research two specific major Anti-Spyware applications for Windows. Compare and contrast their advantages and disadvantages. What is the worst that can happen from Spyware? 300 words minimum

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Problem1. Write a program largeHalf.c that takes in a list of 8 integers, splits the list into two halves (ﬁrst 4 elements, last 4 elements), sums the elements in each half, selects the half with the larger sum, and then repeats this process with the selected list until there is only one element selected. The program should print out the half selected at each step. If the two halves have equal sum, the program should tell the user this and should always pick the ﬁrst half (the one with a smaller starting index, see the example output below). Your program must include the following functions: • int sumArray(int array[], int startIdx, int len) - Returns the sum of the elements in array with index startIdx to startIdx+len. • void printArray(int array[], int startIdx, int len) - Print the elements in array with index startIdx to startIdx+len. We suggest implementing and testing each of these functions before completing the full program. 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This algorithm works by repeatedly scanning through the list and checking if adjacent words are in the correct order (if the shorter word precedes the longer word). If the adjacent words are not in the correct order, it will swap them. After scanning through the list once, it is possible that not all words are sorted, for example, if we started with words of length 1 4 3 2, when we check the ﬁrst and second word, they have the appropriate order (1 < 4), so no swap is made. Then when we continue scanning, we see that the second and third words have lengths 4 and 3, respectively. Thus, we’ll swap these two words, and the lengths will now be 1 3 4 2. Next we need to check the third and fourth words, with lengths 4 and 2, and we’ll need to swap these words. After this scan of the list, the words have been reordered, so the lengths, in order, are now 1 3 2 4. The overall list of words is not yet sorted by length. 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In the ﬁgure on the left, when we integrate a function we are taking the area under the curve between t = a and t = b (in blue), with the caveat that areas calculated for ranges of t for which f(t) < 0 are subtracted from areas calculated for ranges of t for which f(t) > 0. Thus, in the ﬁgure, the integral of f(t) over the range a to b is equal the blue area labeled 2 subtracted from the blue area labeled 1. We can approximate this integral computationally (instead of using analytical integration for an exact answer, i.e. what you learn in calculus) by using a number of methods. Two straightforward methods of approximation are the rectangle and trapezoid methods. With these methods, the integration range is split into n segments and the area of these segments is approximated with a simple polygon. The estimated areas of all of the n segments are signed as either positive or negative (based upon whether they are above or below the t-axis) and are summed. The center ﬁgure (green) demonstrates the rectangle method for n = 4. The width of the rectangle is 4t = (b − a)/n. The height of the rectangle is f(t) evaluated at the midpoint of the rectangle, so for the ﬁrst rectangle, the height is f(a + 4t/2). Thus, the area of the ﬁrst rectangle (with the appropriate +/- sign) is f(a + 4t/2) 4 t. The right ﬁgure (yellow) demonstrates the trapezoid method for n = 4. Each trapezoid has two dif- ferent heights (h1 and h2) and one width (w). The width, w, is also 4t = (b − a)/n. The heights are found by evaluating f(t) at the vertical edges of the trapezoid. So for the ﬁrst trapezoid, heights are h1 = f(a) and h2 = f(a + 4t). For the second trapezoid the heights are h1 = f(a + 4t) and h2 = f(a + 2 ∗ 4t) (shown on ﬁgure). 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Example execution:(˜)$ a.out Enter the integral range (a,b): 0,1 Enter the number of polygons to use: 1 Rectangle Estimate of 4.625000 is off by 0.041667 Trapezoidal Estimate of 4.500000 is off by -0.083333 (˜)$ a.out Enter the integral range (a,b): 0,1 Enter the number of polygons to use: 10 Rectangle Estimate of 4.583750 is off by 0.000417 Trapezoidal Estimate of 4.582500 is off by -0.000833 (˜)$ a.out Enter the integral range (a,b): -1,1 Enter the number of polygons to use: 100 Rectangle Estimate of 18.666800 is off by 0.000133 Trapezoidal Estimate of 18.666400 is off by -0.000267 (˜)$ a.out Enter the integral range (a,b): 5,7 Enter the number of polygons to use: 100 Rectangle Estimate of 198.665600 is off by -0.001067 Trapezoidal Estimate of 198.668800 is off by 0.002133 (˜)$ a.out Enter the integral range (a,b): 10,100 Enter the number of polygons to use: 10000 Rectangle Estimate of 24282899.900980 is off by -0.099020 Trapezoidal Estimate of 24282900.198047 is off by 0.198047

Tippp

Tippp

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