摘要：
Fantasy magicians usually gain their ability through one of three usual methods: possessing it as an innate talent, gaining it through study and pract 阅读全文
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转自：http://blog.csdn.net/x314542916/article/details/7837276（学习下） 线段树的入门级 总结 线段树是一种二叉搜索树，与区间树相似，它将一个区间划分成一些单元区间，每个单元区间对应线段树中的一个叶结点。 对于线段树中的每一个非叶子节点[a,b] 阅读全文
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Solve this interesting problem Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 422 Accepted Subm 阅读全文