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Divisible
Python实现埃拉托色尼筛选素数
5的倍数如上所述,直到需求的范围内所有的数均删除或读取代码如下:构造一个从3开始的可迭代序列defodd_iter():n=1whileTrue:n=n+2yieldn构造一个筛选函数def_not_
divisible
Holase
·
2020-08-22 01:20
Largest
Divisible
Subset
classSolution:deflargestDivisibleSubset(self,nums):""":typenums:List[int]:rtype:List[int]"""ifnotnums:return[]iflen(nums)==1:returnnums#排序#排序之后对nums[i]看前面所有jdp[i]:dp[i]=dp[j]+1pre[i]=jifdp[i]>maxSize:
Leobing001
·
2020-08-21 20:42
python
原来状态机也可以用来刷LeetCode?
LeetCode题目地址:https://leetcode-cn.com/problems/greatest-sum-
divisible
-by-three/description/题目描述暴力法思路一种方式是找出所有的能够被
fe_lucifer
·
2020-08-19 23:56
Find
Divisible
Educational Codeforces Round 57 (Rated for Div. 2)
A-FindDivisible题意:英语翻译题,给你一个l,r区间,要求输出x,y,[x,y]在区间[l,r]中,y是x的倍数,原文中是这样写的xdividesyx被y整除妈蛋,不用担心,x*2超出r边界,因为题上也说了,一定存在解,原文是这样的妈蛋题解:左边界l,右边界l*2,妈蛋。代码:#includeusingnamespacestd;#defineintlonglongsignedmain
UUUUh
·
2020-08-18 09:47
Codeforces
atcoder abc158 E -
Divisible
Substring
atcoderabc158E-DivisibleSubstring先看题面题目的意思是,给定字符串和一个质数P,求字符串当中的子串被P所整除的个数。写一下心路历程,一开始看到题目直接莽dp(最近dp上头)dp[i][j]=sum{dp[i−1][k]}k∈{(10∗k+s[i]−′0′)%P=j}dp[i][j]=sum\{dp[i-1][k]\}\qquadk\in\{(10*k+s[i]-'0
Lejeune
·
2020-08-18 05:39
AtCoder ABC 158 E -
Divisible
Substring(思维)
题目链接:https://atcoder.jp/contests/abc158/tasks/abc158_e题意:给你一个含nnn个数位的数,问你他有多少个子序列可以被ppp整除。思路:再见这题之前,我们先来证明一个引例。假设x1x2x3x4x5x_1x_2x_3x_4x_5x1x2x3x4x5%p==mp==mp==m&&x1x2×103x_1x_2\times10^3x1x2×103%p==m
Altria Vin
·
2020-08-18 02:44
思维
Largest
Divisible
Subset C++
368.LargestDivisibleSubsetGivenasetofdistinctpositiveintegers,findthelargestsubsetsuchthateverypair(Si,Sj)ofelementsinthissubsetsatisfies:Si%Sj=0orSj%Si=0.Iftherearemultiplesolutions,returnanysubsetis
WX_ming
·
2020-08-10 14:32
关于用埃氏筛选法求素数python代码的一些理解
代码块如下:def_odd_iter():#生成一个无限序列的奇数Generatorz=1whileTrue:z=z+2yieldzdef_not_
divisible
(y):#用埃氏筛选法过滤掉奇数序列中的合数
lonesome_zxq
·
2020-08-09 22:38
学习笔记
poj1745 - Divisibility
题目大意:给出N和K,然后给出N个整数(不论正负),问在这N个数中,每两个数之间(即N-1个位置)添加加号或者减号,然后运算的值对K取余,如果余数等于0输出
Divisible
,否则输出Notdivisible
wangjian8006
·
2020-08-09 13:44
poj
C
Subarray Sums
Divisible
by K的解法(统计共同余数)
题目大意:给定一个整数数组A,返回其中元素之和可被K整除的(连续、非空)子数组的数目大致思路:比如数组A=[1,2,1],K=2,那么1%2=1,(1+2)%2=1,所以{2}是符合条件的子数组,而{1}和{1,2}的特点是有共同的余数1。类似的{}和{1,2,1}有共同的余数0,所以{1,2,1}是满足条件的数组。详细思路:(1)统计0到A.size()累计和的余数;(2)统计相同余数的数量;(
dong_beijing
·
2020-08-09 07:36
c++
GYM 101102 J.
Divisible
Numbers(数论+容斥原理)
Description给出一个长度为n的序列,q次查询,每次查询给出区间[l,r]和一个数s,s的二进制从右往左第i位表示i是否出现,统计[l,r]中有多少数可以被s所表示的这些出现的某一个数整除Input第一行一整数T表示用例组数,每组用例首先输入两整数n和q分别表示序列长度和查询数,之后n个数a[i]表示该序列,最后q行每行三个整数l,r,s分别表示查询的区间和1~10这十个数是否出现的二进制
v5zsq
·
2020-08-09 06:09
组合数学
数论
GYM
[LeetCode 6.13] Largest
Divisible
Subset
LargestDivisibleSubsetGivenasetofdistinctpositiveintegers,findthelargestsubsetsuchthateverypair(Si,Sj)ofelementsinthissubsetsatisfies:Si%Sj=0orSj%Si=0.Iftherearemultiplesolutions,returnanysubsetisfine
ISimle
·
2020-08-05 03:18
LeetCode每日一题
K-th Not
Divisible
by n
Youaregiventwopositiveintegersnnandkk.Printthekk-thpositiveintegerthatisnotdivisiblebynn.Forexample,ifn=3n=3,andk=7k=7,thenallnumbersthatarenotdivisibleby33are:1,2,4,5,7,8,10,11,13…1,2,4,5,7,8,10,11,1
JSASL
·
2020-08-03 13:32
leetcode2019/3/31周赛
可被5整除的二进制前缀(https://leetcode-cn.com/contest/weekly-contest-130/problems/binary-prefix-
divisible
-by-5/
vs974532452
·
2020-07-28 15:30
leetcode
def _not_
divisible
(n): return lambda x: x % n > 0
def_not_
divisible
(n):returnlambdax:x%n>0def_odd_iter():n=1whileTrue:n=n+2yieldndef_not_
divisible
(n):returnlambdax
azqgzup61474198
·
2020-07-27 19:23
python
用Python3生成质数列表
defnot_
divisible
(n):returnlambdax:x%n>0注意,此函数返回
Awful_leo
·
2020-07-16 01:46
python
BARRON数学题4组
prime:【数学】质数的,互为质数的;素数的
divisible
:可除;可除尽
pumpkinXP
·
2020-07-15 07:43
LeetCode【#1010】Pairs of Songs With Total Durations
Divisible
by 60
题目链接:点击跳转题目:Inalistofsongs,thei-thsonghasadurationoftime[i]seconds.Returnthenumberofpairsofsongsforwhichtheirtotaldurationinsecondsisdivisibleby60.Formally,wewantthenumberofindicesi&time){vectorres(60
Mikchy
·
2020-07-13 00:13
LeetCode刷题记录及题解
Subarray Sums
Divisible
by K--Python解法--数学题--取模求余
LeetCode974.SubarraySumsDivisiblebyK–Python解法–数学题–取模求余LeetCode题解专栏:LeetCode题解LeetCode所有题目总结:LeetCode所有题目总结大部分题目C++,Python,Java的解法都有。题目地址:SubarraySumsDivisiblebyK-LeetCodeGivenanarrayAofintegers,return
zhang0peter
·
2020-07-12 19:36
LeetCode
python-做题
Pairs of Songs With Total Durations
Divisible
by 60
题目描述(传送门)Inalistofsongs,thei-thsonghasadurationoftime[i]seconds.Returnthenumberofpairsofsongsforwhichtheirtotaldurationinsecondsisdivisibleby60.Formally,wewantthenumberofindicesi60){right--;}else{left
小页睡着了zZ
·
2020-07-12 03:28
Leetcode
java
Pairs of Songs With Total Durations
Divisible
by 60
1010.总持续时间可被60整除的歌曲在歌曲列表中,第i首歌曲的持续时间为time[i]秒。返回其总持续时间(以秒为单位)可被60整除的歌曲对的数量。形式上,我们希望索引的数字i&time){vectorrec(60,0);for(intsec:time)rec[sec%60]++;intres=rec[0]*(rec[0]-1)/2+rec[30]*(rec[30]-1)/2;for(inti=
wanghy1995
·
2020-07-11 23:26
leetcode笔记
Pairs of Songs With Total Durations
Divisible
by 60
题目https://leetcode.com/problems/pairs-of-songs-with-total-durations-
divisible
-by-60/Inalistofsongs,thei-thsonghasadurationoftime
wangyao2221
·
2020-07-11 15:16
算法
Java
LeetCode-Pairs of Songs With Total Durations
Divisible
by 60
Description:Inalistofsongs,thei-thsonghasadurationoftime[i]seconds.Returnthenumberofpairsofsongsforwhichtheirtotaldurationinsecondsisdivisibleby60.Formally,wewantthenumberofindicesi
BeHelium
·
2020-07-11 15:11
LeetCode
Pairs of Songs With Total Durations
Divisible
by 60
Inalistofsongs,thei-thsonghasadurationoftime[i]seconds.Returnthenumberofpairsofsongsforwhichtheirtotaldurationinsecondsisdivisibleby60.Formally,wewantthenumberofindicesi
春蒙
·
2020-07-11 12:38
LeetCode
Pairs of Songs With Total Durations
Divisible
by 60(c语言)
问题描述在歌曲列表中,第i首歌曲的持续时间为time[i]秒。返回总持续时间(以秒为单位)可被60整除的歌曲对的数量。形式上,我们希望数组下标i
一探究竟
·
2020-07-11 12:18
leetcode
Largest
Divisible
Subset
题目链接:https://leetcode.com/problems/largest-
divisible
-subset/Givenasetofdistinctpositiveintegers,findthelargestsubsetsuchthateverypair
jeason29
·
2020-07-11 09:24
Pairs of Songs With Total Durations
Divisible
by 60(取模)
【LeetCode】1013.PairsofSongsWithTotalDurationsDivisibleby60(取模)题目Inalistofsongs,thei-thsonghasadurationoftime[i]seconds.Returnthenumberofpairsofsongsforwhichtheirtotaldurationinsecondsisdivisibleby60.F
hh66__66hh
·
2020-07-11 07:32
刷题
Pairs of Songs With Total Durations
Divisible
by 60 解题报告(Python)
fuxuemingzhu.cn/目录题目描述题目大意解题方法日期题目地址:https://leetcode.com/problems/pairs-of-songs-with-total-durations-
divisible
-by
负雪明烛
·
2020-07-11 06:05
LeetCode
算法
Pairs of Songs With Total Durations
Divisible
by 60
题目描述:Inalistofsongs,thei-thsonghasadurationoftime[i]seconds.Returnthenumberofpairsofsongsforwhichtheirtotaldurationinsecondsisdivisibleby60.Formally,wewantthenumberofindicesiint:'''求所有和能整除60的数,因为能整除60
ailu6554
·
2020-07-11 01:44
Pairs of Songs With Total Durations
Divisible
by 60
leetcode1013.PairsofSongsWithTotalDurationsDivisibleby60题意:一个数组,每个数表示每首歌循环的时间。将所有歌两两匹配,要求满足两首歌持续的总时间能被60整除。求多少种方案。思路:歌有50000,但是时间只有500。所以考虑将时间都对60取余,统计总个数。mp[i]表示持续时间为i的歌的数量。那么对于任意的i,都可以找到60-i进行匹配。cla
Simon|
·
2020-07-10 23:05
LeetCode
Pairs of Songs With Total Durations
Divisible
by 60 (python)
题目:Inalistofsongs,thei-thsonghasadurationoftime[i]seconds.Returnthenumberofpairsofsongsforwhichtheirtotaldurationinsecondsisdivisibleby60.Formally,wewantthenumberofindicesiint:mod_times={}foriintime:m
MaggieTian77
·
2020-07-10 16:19
python编程找出对应范围内的所有素数(质数)
找出所有的素数#先构造一个从3开始的奇数序列defodd_iter():n=1whileTrue:n=n+2yieldn#返回一个Iterator#定义一个筛选函数,用来删除相应素数对应倍数的数defnot_
divisible
super1123young
·
2020-07-08 06:12
python
机器学习
E -
Divisible
Substring AtCoder Beginner Contest 158
abcd%p=(a*1000%p+b*100%p+c*10%p+d*1%p)%p#includeusingnamespacestd;inta[10100];intmain(){intn,m;strings;cin>>n>>m>>s;longlongans=0;if(m==2||m==5){for(inti=0;i=0;i--){v+=t*(s[i]-'0');v%=m;ans+=a[v];a[v]
嘘,我学习呢
·
2020-07-08 06:38
Atcoder
LeetCode974.和可被K整除的子数组
题目来源:https://leetcode-cn.com/problems/subarray-sums-
divisible
-by-k/题目描述:classSolution{publicintsubarraysDivByK
晨初听雨
·
2020-07-08 00:27
LeetCode
K-th Not
Divisible
by n(cf640)(思维题)
Youaregiventwopositiveintegersnandk.Printthek-thpositiveintegerthatisnotdivisiblebyn.Forexample,ifn=3,andk=7,thenallnumbersthatarenotdivisibleby3are:1,2,4,5,7,8,10,11,13….The7-thnumberamongthemis10.In
bug生产专家
·
2020-07-05 10:35
leetcode算法题--可被三整除的最大和
原题链接:https://leetcode-cn.com/problems/greatest-sum-
divisible
-by-three/动态规划dp[0]存储余数为0的最大和dp[1]存储余数为1的最大和
bob62856
·
2020-07-05 03:12
算法
K-th Not
Divisible
by n (数论,思维)
题目链接题意:问不能被n整除的第k个数是多少。1usingnamespacestd;#defineNewNode(ListNode*)malloc(sizeof(ListNode))#defineMem(a,b)memset(a,b,sizeof(a))constintN=1e5+5;constintINF=0x3f3f3f3f;constdoubleEPS=1e-10;constunsigned
要无愧于人
·
2020-07-05 00:23
codeforces
数论
数学
思维
Largest
Divisible
Subset
http://www.lintcode.com/zh-cn/problem/largest-
divisible
-subset/packagecom.LintCode.Largest;importjava.util.ArrayList
天街孤独
·
2020-07-04 22:34
K-th Not
Divisible
by n
C.K-thNotDivisiblebyn题目链接-C.K-thNotDivisiblebyn题目大意给你一个数nnn,请你找出不能被nnn整除的第kkk个数解题思路首先能被nnn整除的数一定是000和nnn的倍数,那么能被nnn整除的数就为0,n,2n…0,n,2n…0,n,2n…所以相邻两个能被nnn组成的数构成的区间内有n−1n-1n−1个不能被nnn整除的数然后我们只需判断第kkk个数在第
Fiveneves
·
2020-07-04 05:41
codeforces
K-th Not
Divisible
by n
ProblemdescriptionYouaregiventwopositiveintegersnandk.Printthek-thpositiveintegerthatisnotdivisiblebyn.Forexample,ifn=3,andk=7,thenallnumbersthatarenotdivisibleby3are:1,2,4,5,7,8,10,11,13….The7-thnumb
王文颐
·
2020-07-04 04:25
Greatest Sum
Divisible
by Three DP坑
Givenanarraynumsofintegers,weneedtofindthemaximumpossiblesumofelementsofthearraysuchthatitisdivisiblebythree.Example1:Input:nums=[3,6,5,1,8]Output:18Explanation:Picknumbers3,6,1and8theirsumis18(maximu
taoqick
·
2020-07-04 02:45
算法
leetcode
AtCoder Beginner Contest 158 E
Divisible
Substring 记录连续余数和,并统计相同余数和的个数
AtCoderBeginnerContest158比赛人数8029codeforces比赛结束不久,就开打了,还好状态还可以,就是网站太慢,浪费了20分钟.AtCoderBeginnerContest158EDivisibleSubstring记录连续余数和,并统计相同余数和的个数总目录详见https://blog.csdn.net/mrcrack/article/details/10445476
mrcrack
·
2020-07-02 12:11
atcoder
AtCoder Beginner Contest 158 E
Divisible
Substring 题解(思维+取余)
题目链接题目大意给一个字符串(由数字‘0’~‘9’组成),一个素数p,问有多少个非空的连续子串是p的倍数题目思路此题感觉比较神仙吧,第一次见这种题目,以后要多积累看到题目中余数是质数就是仔细想想和取余有关的问题abcd%p=(a*1000%p+b*100%p+c*10%p+d*1%p)%p那么考虑从后往前算余数,并且记录余数出现的个数,比如算到第i位,此时余数为1,但是先前有余数为1的个数为2那么
Half-Blood Prince
·
2020-07-02 11:38
思维
数论
Not
Divisible
AtCoderBeginnerContest170D.NotDivisible题目链接寥寥数字,我看了半天都没看懂后来发现是日译音的问题,真的是无力吐槽题意就是找数组中的一个数aia_iai,数组中除了它本身就没有能被它整除的数,可能有人搞不明白整除与被整除的关系,我再讲通俗一点就是数组中除了数本身就没有该数的因子了~弄清楚题意就很简单了,我们只要对每个数遍历找因子即可,有一个坑点就是111,当只
旺 崽
·
2020-07-01 04:44
数论
AtCoder
AtCoder Beginner Contest 170 D Not
Divisible
桶排序+倍数
AtCoderBeginnerContest170比赛人数10527比赛开始后4分钟看到A题,在比赛开始后第5分钟看到所有题AtCoderBeginnerContest170DNotDivisible桶排序+倍数总目录详见https://blog.csdn.net/mrcrack/article/details/104454762在线测评地址https://atcoder.jp/contests/
mrcrack
·
2020-07-01 03:54
atcoder
AtCoder题解——Beginner Contest 170——D - Not
Divisible
题目相关题目链接AtCoderBeginnerContest170D题,https://atcoder.jp/contests/abc170/tasks/abc170_d。ProblemStatementGivenisanumbersequenceAoflengthN.Findthenumberofintegersi(1≤i≤N)withthefollowingproperty:Foreveryi
努力的老周
·
2020-07-01 02:10
OJ题解
#
AtCoder题解
AtCoder题解
ABC
170
D题
Not
Divisible
Greatest Sum
Divisible
by Three
Givenanarraynumsofintegers,weneedtofindthemaximumpossiblesumofelementsofthearraysuchthatitisdivisiblebythree.Example1:Input:nums=[3,6,5,1,8]Output:18Explanation:Picknumbers3,6,1and8theirsumis18(maximu
ReignsDu
·
2020-06-26 05:55
LeetCode
Largest
Divisible
Subset 解题报告
题目链接:https://leetcode.com/problems/largest-
divisible
-subset/Givenasetofdistinctpositiveintegers,findthelargestsubsetsuchthateverypair
小榕流光
·
2020-06-24 23:39
leetcode
动态规划
math
leetcode
动态规划
math
对廖雪峰网站python教程中求素数的理解
对廖雪峰网站python教程中求素数的理解原代码如下:def_odd_iter():n=1whileTrue:n=n+2yieldndef_not_
divisible
(n):returnlambdax:
eexiaoming
·
2020-06-23 06:09
Python基础
def _not_
divisible
(n): return lambda x: x % n > 0个人理解
@[TOC](def_not_
divisible
(n):returnlambdax:x%n>0这里写自定义目录标题)代码def_odd_iter():n=1whileTrue:n=n+2yieldndef_not_
divisible
brave-lu
·
2020-06-22 04:06
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