1002. Phone Numbers Time limit: 2.0 secondMemory limit: 64 MB In the present world you frequently meet a lot of call numbers and they are going to be longer and longer. You need to remember such a kind of numbers. One method to do it in an easy way i…

[九度OJ]题目1442:A sequence of numbers 解题报告 标签(空格分隔): 九度OJ 原题地址:http://ac.jobdu.com/problem.php?pid=1442 题目描述: Xinlv wrote some sequences on the paper a long time ago, they might be arithmetic or geometric sequences. The numbers are not very clear now, a…

[LeetCode]129. Sum Root to Leaf Numbers 解题报告(Python) 标签(空格分隔): LeetCode 题目地址:https://leetcode.com/problems/sum-root-to-leaf-numbers/description/ 题目描述: Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a numbe…

[LeetCode]386. Lexicographical Numbers 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.me/ 题目地址:https://leetcode.com/problems/lexicographical-numbers/description/ 题目描述: Given an integer n, return 1 - n in lexicogra…

[LeetCode]165. Compare Version Numbers 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.me/ 题目地址:https://leetcode.com/problems/compare-version-numbers/description/ 题目描述: Compare two version numbers version1 and vers…

runround解题报告------------------------------------------------------------------------------------------------------------------------------------------------[题目] 给你一个数M,找出第一个比它大的循环数. 循环数:不包括0.没有重复数字,并且有循环性质的正整数. 循环性质:以81362为例 1.找到最高位,是8,那么往下数8位,依次是1,3…

    487-3279 Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 228365   Accepted: 39826 Description Businesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable word or p…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 DFS 日期 题目地址:https://leetcode.com/problems/sum-of-root-to-leaf-binary-numbers/ 题目描述 Given a binary tree, each node has value 0 or 1. Each root-to-leaf path represents a binary n…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 方法一:排序 日期 题目地址:https://leetcode.com/problems/maximum-product-of-three-numbers/description/ 题目描述 Given an integer array, find three numbers whose product is maximum and output t…

CF55D Beautiful numbers 题意 \(t(\le 10)\)次询问区间\([l,r](1\le l\le r\le 9\times 10^{18})\)中能被每一位上数整除的数的个数,0算可以整除任何数. 最开始写了个假做法,既没算0复杂度也是假的 最开始把每个模数都压进去了,后来发现只压2520就可以了 然后前两位压前\(i\)位与\(\bmod 2520\)的结果,第三位最开始压了每个数字出现集合,这样就很屑. 可以直接压数字集合的最小公倍数,仅有不到50个取值,做一个H…