2’

Increment & Decrement – Find The Bugs!
The following code is intended to increment / decrement A and B until A is equal to X and B is equal to Y. Find the bugs!

(int a, int b, int x, int y)

{

while (a != x && b != y)

{

if (a > x)

{

a++;

}

else

{

a--;

}

if (b > y)

{

b++;

}

else

{

b--;

}

}

}

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Alook-up table used to convert pixel values to output values on a monitor. essentially, all pixels with a value of 190 or above are shown as white (i.e. 255), and all values with a value of 63 or less are shown as black (i.e. 0). in between the pixels are scaled so that a pixel with a value p is converted to a pixel of value 2/127 −+3969). if a pixel has a value of 170 originally, what value will be used to display the pixel on the monitor? if a value of 110 is used to display the pixel on the monitor, what was the original value of the pixel?

Hassan is writing his master’s thesis, which is a thirty-page document. he received some feedback from his professor in the form of comments, but does not see where the comments are. what is the fastest way for hassan to find the feedback?