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Language: Rotated Sky Charts
Description Lambert has two scanned images of a sky chart. These two images look identical except that they are rotated and scaled with different parameters with respect to the same center. Lambert wants to know the smallest angle one of the images has to be rotated so that the two images coincide if appropriately scaled. Input The input contains multiple test cases. Each test case begins with a line containing a positive integer Output For each test case, output one line containing the smallest angle the first image has to be rotated counterclockwise so that the two images coincide if appropriately scaled. Output your result in degrees and round it to two digits beyond decimal point. Sample Input 1 1 0 0 100 2 1 1 -1 1 1 -1 -1 -1 5 -19830.82380 -18786.25720 2148.03095 -18081.71419 875.00326 -22561.64828 7119.42127 8980.47085 -8967.62588 37.09588 24112.04526 12837.22343 2737.01862 18001.97639 5155.38703 21982.16524 -9250.95629 -6764.23120 8634.96079 -2420.15335 Sample Output 90.0 180.00 164.58 Source |

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