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Problem 1020
Doing Windows
Time Limit: 1000ms
Memory Limit: 65536kb Description
The screen of monitors on computer systems are rectangles. The aspect ratio
of a screen is its width divided by its height. This term can also be applied
to rectangular windows that may appear on the monitor's screen, where it is defined
as the width of the window divided by its height. For this problem we assume
the dimensions of a monitor's screen and its windows are measured in integral numbers
of pixels, the individual dots (arranged in a rectangular grid) that comprise
and image.Suppose your windowing software only allows windows to be resized in such a way that their aspect ratios are unmodified. For example, a window with a width of 150 pixels and a height of 100 pixels (and an espect ratio of 150/100, or 1.5) can be resized so its width is 225 pixels and its height is 150 pixels (the aspect ratio remains unchanged, at 225/150, or 1.5), but a width of 224 and a height of 150 is not allowed, since that would change the aspect ratio. Each window can be moved to an arbitrary location on the screen, but the entire window must remain visible on the screen. Given the size of a screen and the initial sizes of four different windows (as integer values for width and height), is it possible to resize (and relocate) the four windows so they completely cover the screen without overlapping each other? That's the question you are to answer in this problem. For example, consider a square screen with four square windows. The aspect ratio for each of these is exactly 1. We are permitted to resize each of the four windows so they would completely fill the screen without overlapping. This case is illustrated by the first data set in the Sample Input, below. Input
Input will consist of one or more data sets followed by a pair of zeroes. Each
data set will contain five pairs of integers. The first pair
(Ws, Hs) specifies the
width and height of the screen. The four remaining pairs (Wi,
Hi, for i = 1 to 4) specify the initial sizes of the
windows.
Output
Output should have one line for each input data set. The line should contain
the input data set number (starting with 1) followed by the word Yes
if the screen can be completely covered by the (possibly resized and relocated) windows
with no overlap, or No if it cannot be so covered.
Sample Input
400 400 10 10 35 35 15 15 100 100 200 300 10 10 20 20 30 45 40 60 200 250 10 10 20 20 30 45 40 60 0 0 Sample Output
Set 1: Yes Set 2: No Set 3: Yes |