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by ambrop7
4764 days ago
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I think the reasoning is wrong here. Obviously a tower could be stable, but still applying force to an edge of the top could make it collapse. What's actually happening is that at each step, you already have a max-overhang tower of N bricks, then you add another brick below, to produce a max-overhang tower of N+1 bricks. Because the old N-brick tower is stable, you can place it anywhere on the new bottom brick as long as its center of gravity is not off the edge of the new brick. |
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