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给点建议～1:如果对二维的树状数组不熟悉,可以先做一下POJ1195 练一下手 2:如果实在想不到如何转化问题,建议看看<<浅析信息学竞赛中的0和1>>这篇论文,作者是石家庄二中 武森 Followed by: Post your reply here: |
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