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链接：https://www.nowcoder.com/acm/contest/211/F来源：牛客网 时间限制：C/C++ 2秒，其他语言4秒 空间限制：C/C++ 262144K，其他语言524288K 64bit IO Format: %lld 时间限制：C/C++ 2秒，其他语言4秒 空间限 阅读全文
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"Let it Bead" company is located upstairs at 700 Cannery Row in Monterey, CA. As you can deduce from the company name, their business is beads. Their 阅读全文
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题目背景 这是一道模板题 可以使用bitset，CDQ分治，K-DTree等方式解决。 题目描述 有 nn 个元素，第 ii 个元素有 a_iai、b_ibi、c_ici 三个属性，设 f(i)f(i) 表示满足 a_j \leq a_iaj≤ai 且 b_j \leq b_ibj≤bi 阅读全文
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On a grid map there are n little men and n houses. In each unit time, every little man can move one unit step, either horizontally, or vertically, to 阅读全文
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Cows are such finicky eaters. Each cow has a preference for certain foods and drinks, and she will consume no others. Farmer John has cooked fabulous 阅读全文
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链接：https://www.nowcoder.com/acm/contest/202/A来源：牛客网 题目描 深度学习算法很大程度上基于矩阵运算。例如神经网络中的全连接，本质上是一个矩阵乘法；而卷积运算也通常是用矩阵乘法来完成的。有一些科研工作者为了让神经网络的计算更快捷，提出了二值化网络的方法， 阅读全文
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题意：给你一个字符串，并让他不断的进行循环左移，问字典序最小的字符串是第几个，出现的次数是多少，最大的字符串是第几个，出现的次数是多少？ 分析:最小字符串和最大字符串用最小表示法即可找到，出现的次数，就是循环节循环的次数，用KMP的Nextd的数组得到 代码如下： 阅读全文
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Volodya is an odd boy and his taste is strange as well. It seems to him that a positive integer number is beautiful if and only if it is divisible by 阅读全文
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For a decimal number x with n digits (A nA n-1A n-2 ... A 2A 1), we define its weight as F(x) = A n * 2 n-1 + A n-1 * 2 n-2 + ... + A 2 * 2 + A 1 * 1. 阅读全文
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There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of parts of the i 阅读全文