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水平序凸包舒服得很啊……In Reply To:JSOI2007合金那道题的翻版。注意凸包不要用graham，否则共线会死的很惨……我为此不知wa了多少…… Posted by:xuhaoran510 at 2011-07-09 16:08:06 Followed by: Post your reply here: |
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