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查询Tags标签: sequence,共有 177条记录
  • A - Sequence with Digits

    题意:由递推式an+1=an+minDigit(an)⋅maxDigit(an)a_{n+1}=a_n+minDigit(a_n)⋅maxDigit(a_n)an+1​=an​+minDigit(an​)⋅maxDigit(an​),其中minDigit(an)minDigit(a_n)minDigit(an​),maxDigit(an)maxDigit(a_n)maxDigit(an​)分别为ana_nan​中最小的一位数和最大…

    2021/8/3 23:38:31 人评论 次浏览
  • 376. Wiggle Subsequence

    package LeetCode_376/*** 376. Wiggle Subsequence* https://leetcode.com/problems/wiggle-subsequence/* A wiggle sequence is a sequence where the differences between successive numbers strictly alternate between positive and negative.* The first differen…

    2021/8/1 23:35:55 人评论 次浏览
  • 376. Wiggle Subsequence

    package LeetCode_376/*** 376. Wiggle Subsequence* https://leetcode.com/problems/wiggle-subsequence/* A wiggle sequence is a sequence where the differences between successive numbers strictly alternate between positive and negative.* The first differen…

    2021/8/1 23:35:55 人评论 次浏览
  • Oracle实现自增

    先创建一个序列,如果存在了就先删除1 drop sequence weather_s; --DROP sequence *** 删除序列 2 CREATE sequence weather_s minvalue 1 maxvalue 999999 INCREMENT BY 1 START WITH 1; --CREATE sequence ** start WITH * INCREMENT * 选择开始数值和步长再创建一个…

    2021/7/30 19:38:58 人评论 次浏览
  • Oracle实现自增

    先创建一个序列,如果存在了就先删除1 drop sequence weather_s; --DROP sequence *** 删除序列 2 CREATE sequence weather_s minvalue 1 maxvalue 999999 INCREMENT BY 1 START WITH 1; --CREATE sequence ** start WITH * INCREMENT * 选择开始数值和步长再创建一个…

    2021/7/30 19:38:58 人评论 次浏览
  • 雪花算法,自动生成主键ID

    创建方法package com.numberone.framework.web.controller;/*** 雪花算法 自动生成ID*/ public class IdWorker {//因为二进制里第一个 bit 为如果是 1,那么都是负数,但是我们生成的 id 都是正数,所以第一个 bit 统一都是 0。//机器ID 2进制5位 32位减掉1位 31个pri…

    2021/7/29 17:08:47 人评论 次浏览
  • 雪花算法,自动生成主键ID

    创建方法package com.numberone.framework.web.controller;/*** 雪花算法 自动生成ID*/ public class IdWorker {//因为二进制里第一个 bit 为如果是 1,那么都是负数,但是我们生成的 id 都是正数,所以第一个 bit 统一都是 0。//机器ID 2进制5位 32位减掉1位 31个pri…

    2021/7/29 17:08:47 人评论 次浏览
  • python 异常 ValueError setting an array element with a sequence

    python 异常 ValueError: setting an array element with a sequence错误原因是因为numpy数组中存在不同类型的数据,如果后来想把数据统一设为比如int32,int64,float32等类型是就出现这个异常错误例子,我本来以为我的数据是 train_vector_X = [[ 9.00000000e+00 5.0000…

    2021/7/28 11:06:16 人评论 次浏览
  • python 异常 ValueError setting an array element with a sequence

    python 异常 ValueError: setting an array element with a sequence错误原因是因为numpy数组中存在不同类型的数据,如果后来想把数据统一设为比如int32,int64,float32等类型是就出现这个异常错误例子,我本来以为我的数据是 train_vector_X = [[ 9.00000000e+00 5.0000…

    2021/7/28 11:06:16 人评论 次浏览
  • 2021-7-17 Boredom

    难度 1500 题目 CodeForces:Boredomtime limit per test 1 secondmemory limit per test 256 megabytesAlex doesnt like boredom. Thats why whenever he gets bored, he comes up with games. One long winter evening he came up with a game and decided to play it.G…

    2021/7/17 23:13:46 人评论 次浏览
  • 2021-7-17 Boredom

    难度 1500 题目 CodeForces:Boredomtime limit per test 1 secondmemory limit per test 256 megabytesAlex doesnt like boredom. Thats why whenever he gets bored, he comes up with games. One long winter evening he came up with a game and decided to play it.G…

    2021/7/17 23:13:46 人评论 次浏览
  • 1051 Pop Sequence (25 分)

    Given a stack which can keep M numbers at most. Push N numbers in the order of 1, 2, 3, ..., N and pop randomly. You are supposed to tell if a given sequence of numbers is a possible pop sequence of the stack. For example, if M is 5 and N is 7, we can…

    2021/7/16 23:35:47 人评论 次浏览
  • 1051 Pop Sequence (25 分)

    Given a stack which can keep M numbers at most. Push N numbers in the order of 1, 2, 3, ..., N and pop randomly. You are supposed to tell if a given sequence of numbers is a possible pop sequence of the stack. For example, if M is 5 and N is 7, we can…

    2021/7/16 23:35:47 人评论 次浏览
  • python学习记录-enumerate函数

    enumerate() 函数用于将一个可遍历的数据对象(如列表、元组或字符串)组合为一个索引序列,同时列出数据和数据下标,一般用在 for 循环当中。enumerate(sequence, [start=0])sequence -- 一个序列、迭代器或其他支持迭代对象。 start -- 下标起始位置。list1 = ["hel…

    2021/7/16 17:05:28 人评论 次浏览
  • python学习记录-enumerate函数

    enumerate() 函数用于将一个可遍历的数据对象(如列表、元组或字符串)组合为一个索引序列,同时列出数据和数据下标,一般用在 for 循环当中。enumerate(sequence, [start=0])sequence -- 一个序列、迭代器或其他支持迭代对象。 start -- 下标起始位置。list1 = ["hel…

    2021/7/16 17:05:28 人评论 次浏览
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