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Problem问题Consider a grid such as the one shown. We wish to mark k intersections in each of n rows and n columns in such a way that no 4 of the selected intersections form a rectangle with sides parall... 阅读全文
摘要：
Time limit: 3.000 seconds限时：3.000秒Problem问题Consider objects such as these. They are polygons, specified by the coordinates of a centre of mass and their vertices. In the figure, centres of mass are sh... 阅读全文
摘要：
Time limit: 3.000 seconds限时：3.000秒Problem问题Given two convex polygons, they may or may not overlap. If they do overlap, they will do so to differing degrees and in different ways. Write a program that ... 阅读全文
