随笔分类 - 贪心
摘要:牛客练习赛81B-小Q与彼岸花: 题目大意: 给你n(n<=5000)个数和m(m<=5000)个询问,每次询问区间[L,R]中两个数的异或最大值是多少 题目思路: 因为这里的数据范围完全可以n^2写,所以我们对每次询问都对区间[L,R]的数建立一颗01字典树 把一个数转化为二进制后,从高位往树上插
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摘要:题目描述 Noah suggests the following card game: You are given a deck of cards, each with a distinct positive integer value written on it. The cards are sh
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