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Largest
堆排序算法的实现!!
defineleft(i)2*(i) #defineright(i)2*(i)+1 intsize; voidheapify(inta[],inti) { intl=left(i),r=right(i),
largest
u014355480
·
2015-01-01 00:00
Algorithm
ACM
算法导论
heap
堆排序
LeetCode(82)
Largest
Rectangle in Histogram
题目如下:Given n non-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight= [2,1,5,6,
feliciafay
·
2014-12-30 07:00
LeetCode
stack
(每日算法)Leetcode --
Largest
Rectangle in Histogram(最大实心矩形)
思路:如果时间复杂度要求是O(n 2 )的话,解法比较多也比较好理解。比如可以遍历,对于当前i位置上的立柱,计算出以这个i立柱结尾的最大矩形,然后求出总的最大矩形。Given n non-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectang
yapian8
·
2014-12-18 21:00
堆排序:Swift实现
PARENT(i)returnfloor(i/2)LEFT(i)return2iRIGHT(i)return2i+13)最大堆A[PARENT(i)]>=A[i]4)最小堆A[PARENT(i)]A[i]
largest
Cruise_Chan
·
2014-12-11 00:00
swift
算法导论
算法
堆排序
HDU2136_
Largest
prime factor【水题】【筛法求素数】
LargestprimefactorTimeLimit:5000/1000MS(Java/Others) MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):7216 AcceptedSubmission(s):2559ProblemDescriptionEverybodyknowsanynumbercanbecombinedbyth
u011676797
·
2014-12-06 23:00
201412022200-hd-
Largest
prime factor
LargestprimefactorTimeLimit:5000/1000MS(Java/Others) MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):7195 AcceptedSubmission(s):2554ProblemDescriptionEverybodyknowsanynumbercanbecombined
wangluoershixiong
·
2014-12-05 20:00
相同数目的0和1的子数组
Largest
subarray with equal number of 0s and 1s
相同数目的0和1的子数组Largestsubarraywithequalnumberof0sand1sFollowingisasolutionthatusesO(n)extraspaceandsolvestheprobleminO(n)timecomplexity.Letinputarraybearr[]ofsizenandmaxsizebethesizeofoutputsubarray.1) C
jiyanfeng1
·
2014-11-26 07:00
find the
largest
subset of consecutive integers 找到最大的连续整数子集
Findthelargestsubsetofconsecutiveintegers找到最大的连续整数子集Givenanintarraywhichmightcontainduplicates,findthelargestsubsetofitwhichformasequence. Eg.{1,6,10,4,7,9,5}thenansis4,5,6,7一个简单的解法是:SortthearrayFindt
jiyanfeng1
·
2014-11-23 14:00
第二天-运算符、控制结构
Enterfourintegers:1084935
Largest
:49 Smallest:8 */ #include #defineN4 intmain(void) { intn[4]; inti,
linbo5411
·
2014-11-22 18:00
hdu1506——
Largest
Rectangle in a Histogram
LargestRectangleinaHistogramTimeLimit:2000/1000MS(Java/Others) MemoryLimit:65536/32768K(Java/Others)TotalSubmission(s):12019 AcceptedSubmission(s):3326ProblemDescriptionAhistogramisapolygoncompo
Guard_Mine
·
2014-11-17 09:00
dp
NYOJ 520 & HDU 2136
Largest
prime factor(筛法思想)
题目链接:clickhere~~最近复习数论的知识。发现这道题不错,发现既然没有记录,果断的再做了一遍。题意:给定一个整数n,要求我们求出n的最大素因子的序数,例如:2的序数是1,3的序数是2,5的序数是3,以此类推.思路:开一个数组,直接记录素数的序数。从2开始循环,当遇到为0的值时,证明它是素数,这时候把它的所有倍数(包括它本身)的值更新为这个素数的序数,也就同时标记为它们为非素数。这样,每个
u013050857
·
2014-11-16 21:00
数论
ACM
[LeetCode]
Largest
Rectangle in Histogram
Given n non-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight= [2,1,5,6,2,3].
u014691362
·
2014-11-11 21:00
java
LeetCode
LeetCode刷题笔录
Largest
Rectangle in Histogram
Given n non-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight= [2,1,5,6,2,3].
likecool21
·
2014-11-06 14:00
LeetCode
stack
HDU2136
Largest
prime factor
给出一个n,找出n的最大素因子在素数表中的位置。打表:#include#includeconstintMAX=1e6;usingnamespacestd;longlongprime[MAX];intmain(){ longlongnum,i,j,n; memset(prime,0,sizeof(prime)); prime[1]=0; num=0; for(i=2;i
AC_Gibson
·
2014-11-06 12:00
HDU2870_
Largest
Submatrix【最大完全子矩阵】
LargestSubmatrixTimeLimit:2000/1000MS(Java/Others) MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):1589 AcceptedSubmission(s):761ProblemDescriptionNowhereisamatrixwithletter'a','b','c','w','
u011676797
·
2014-11-04 17:00
[LeetCode] Maximum Product Subarray 求最大子数组乘积
Find the contiguous subarray within an array (containing at least one number) which has the
largest
·
2014-10-29 15:00
LeetCode
堆排序 python
): #保持最大堆 defmax_heapify(alist,idx,size): left=idx*2+1 right=idx*2+2 length=size ifleftalist[left]:
largest
u012592285
·
2014-10-25 11:00
算法
python
HDU1506_
Largest
Rectangle in a Histogram
LargestRectangleinaHistogramTimeLimit:2000/1000MS(Java/Others) MemoryLimit:65536/32768K(Java/Others)TotalSubmission(s):11637 AcceptedSubmission(s):3197ProblemDescriptionAhistogramisapolygoncomposedo
u011676797
·
2014-10-18 09:00
最大和子数组与最大积子数组(
Largest
Sum Contiguous Subarray & Maximum Product Subarray)
在一个数组中找出最大和的子数组(LargestSumContiguoussubarray),这个问题第一次提出是在1977年ulf-grenander提出的。详见:http://en.wikipedia.org/wiki/Maximum_subarray_problem初次见到这个题目时,除了暴力破解我没有其他思路。但是google了一下,找到了一个时间复杂度O(n)空间复杂度O(1)的算法:in
bdss58
·
2014-10-16 13:00
1 Maximum Product Subarray_Leetcode
Find the contiguous subarray within an array (containing at least one number) which has the
largest
·
2014-10-12 14:00
LeetCode
Maximum Subarray
题目描述 Find the contiguous subarray within an array (containing at least one number) which has the
largest
淡淡的一抹
·
2014-10-09 22:00
array
Largest
Rectangular Area in a Histogram
题目地址:https://oj.leetcode.com/problems/
largest
-rectangle-in-histogram/ ,刚开始其实没做这个题,而是在做https://oj.leetcode.com
huruzun
·
2014-10-01 12:00
LeetCode
rectangular
Largest
【沙茶了+筛选保存最大质因数】【HDU2136】
Largest
prime factor
LargestprimefactorTimeLimit:5000/1000MS(Java/Others) MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):6990 AcceptedSubmission(s):2471ProblemDescriptionEverybodyknowsanynumbercanbecombined
zy691357966
·
2014-09-30 21:00
LeetCode_
Largest
Rectangle in Histogram
Givennnon-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight=[2,1,5,6,2,3].Giv
loveRooney
·
2014-09-30 16:00
Maximum Subarray
题目描述 Find the contiguous subarray within an array (containing at least one number) which has the
largest
淡淡的一抹
·
2014-09-28 11:00
array
UVA11324-- The
Largest
Clique(SCC+DP)
题目链接题意:给出一张有向图,求一个结点数最大的结点集,使得该结点集中任意两个结点u和v满足:要么u可以到到v,要么v可以到达u(u和v可以互相到达)思路:我们可以缩点,用Tarjan求出所有强连通分量,让每个SCC的权值等于它的结点个数。由于SCC图是有一个DAG,使用DP求解。代码:#include #include #include #include #include #include u
u011345461
·
2014-09-28 11:00
[leetcode]
Largest
Rectangle in Histogram
LargestRectangleinHistogramclassSolution{ public: intlargestRectangleArea(vector&height){ stackstk; height.push_back(0); intres=0; for(inti=0;iheight[stk.top()]){ stk.push(i++); }else{ inttmp=stk.top
lydyangliu
·
2014-09-23 14:00
uva11324 - The
Largest
Clique 有向图强连通分量+缩点+DP
GivenadirectedgraphG,considerthefollowingtransformation.First,createanewgraphT(G)tohavethesamevertexsetasG.CreateadirectededgebetweentwoverticesuandvinT(G)ifandonlyifthereisapathbetweenuandvinGthatfol
corncsd
·
2014-09-18 17:00
BZOJ1591 USACO 2008 Dec Gold 4.
Largest
Fence Solution
题目大意:求出平面上n个点组成的一个包含顶点数最多的凸多边形。n #include #include #include #include usingnamespacestd; #defineN251 structPoint{ intx,y; Point(int_x=0,int_y=0):x(_x),y(_y){} booloperator0; } intdown[N][N],up[N][N],
wyfcyx_forever
·
2014-09-17 14:00
笔试题next_permutation &
Largest
Rectangle in Histogram
看了看去年有道的2013年10月北邮站的笔试题,第一题很简单但unicode字符的输出没实现成功(题目见http://www.cnblogs.com/dancingrain/p/3405186.html),后两道编程题都很经典,在leetcode上遇到过,但是还是记不清了,所以决定写一写,争取把思路说清楚,把方法变成自己的。 第二道,对于给定的正整数n,1至n个数的全排列有n!个,对于任意一个排列
fanoluo
·
2014-09-12 23:00
UVA11324 The
Largest
Clique,有向图,最大团的结点数
点击打开链接有向图把强联通分量缩点后得到一个DAG,然后DP。#include #include #include #include #include #include usingnamespacestd; constintmaxn=1000+10; vectorG[maxn]; intdfn[maxn],low[maxn],sccno[maxn],dfs_clock,scc_cnt; stac
yew1eb
·
2014-09-11 10:00
Maximum Submatrix &
Largest
Rectangle
http://blog.csdn.net/pipisorry/article/details/39048485探讨几个和求最大长方形相关的题目,并说明如何把一些相对复杂的问题化归成简单的易解的问题。这里的最大,可以指长方形内所有元素之各最大,也可以指面积最大。问题一(最大和子矩阵) :有一个mxn的矩阵,矩阵的元素可正可负。请找出该矩阵的一个子矩阵(方块),使得其所有元素之和在所有子矩阵中最大。(
pipisorry
·
2014-09-04 10:00
搜索
动态规划
LeetCode 68
Largest
Rectangle in Histogram
Givennnon-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight=[2,1,5,6,2,3].The
ustc_summer
·
2014-09-03 21:00
LeetCode
直方图最大矩阵
POJ-3494-
Largest
Submatrix of All 1’s
这个题要求求出最大的1子矩阵,用悬线法做即可。代码:#include #include #include usingnamespacestd; constintmaxn=2e3+100; intn,m,a[maxn][maxn],L[maxn][maxn],R[maxn][maxn],H[maxn][maxn]; voidsolve() { intans=0; for(inti=1;i=1;j--
z309241990
·
2014-09-03 09:00
悬线法
swift读取字典中最大的数组和数组最大值
shabiNumbers=["prime":[2,3,5,7,11,13], "Fibonacci":[1,1,2,3,4,8], "Square":[1,4, 9, 16, 25],]var
largest
zhiliangzeng
·
2014-09-01 11:58
最大值
swift
LeetCode:
Largest
Rectangle in Histogram
思路:O(n^2)很容易超时,不过思路很清晰,就是对于每一个bar,找到左边离它最近、高度比它低的bar,向右也是,这样构成一个最大的矩形,代码如下:classSolution{ public: intlargestRectangleArea(vector&height){ intn=height.size(); vectorleft(n,0),right(n,0); for(inti=0;i=0
AIvin24
·
2014-08-30 14:00
UVA 11324 - The
Largest
Clique(强连通分量+缩点)
UVA11324-TheLargestClique题目链接题意:给定一个有向图,要求找一个集合,使得集合内任意两点(u,v)要么u能到v,要么v能到u,问最大能选几个点思路:强连通分量,构造出scc之后,缩点,每个点的权值是集合点个数,然后做一遍dag找出最大权值路径即可代码:#include #include #include #include #include usingnamespacest
u011217342
·
2014-08-30 13:00
hdu 2870
Largest
Submatrix (DP)
LargestSubmatrixTimeLimit:2000/1000MS(Java/Others) MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):1534 AcceptedSubmission(s):735ProblemDescriptionNowhereisamatrixwithletter'a','b','c','
caduca
·
2014-08-30 12:00
Algorithm
hdu 1506
Largest
Rectangle in a Histogram(DP)
LargestRectangleinaHistogramTimeLimit:2000/1000MS(Java/Others) MemoryLimit:65536/32768K(Java/Others)TotalSubmission(s):11389 AcceptedSubmission(s):3133ProblemDescriptionAhistogramisapolygoncompo
caduca
·
2014-08-28 23:00
Algorithm
hdu 1507
Largest
Rectangle in a Histogram 动态规划计算最大面积
记录动态规划dpl,dpr,分辨记录i左面的比i大的,右面比i大的,然后(dpr[i]-dpl[i]+1)*h[i]得出长度动态转移方程while(temp>1&&h[temp-1]>=h[i])temp=dpl[temp-1]/************************************************************************* >FileName:h
youngyangyang04
·
2014-08-25 00:00
POJ 2559
Largest
Rectangle in a Histogram RMQ || 单调栈
题目链接:点击打开链接题意就是求最大面积枚举每个柱子作为起点然后二分两边长度。求个区间最值。#include #include #include usingnamespacestd; #definelllonglong #defineN100100 inlineboolrd(int&n){ intx=0,tmp=1; charc=getchar(); while((c'9')&&c!='-'&&c
qq574857122
·
2014-08-16 17:00
Stamps(DP)
, 3 cents}) and an upper limit K to the number of stamps that can fit on an envelope, calculate the
largest
Simone_chou
·
2014-08-06 15:00
dp
HDU1506
Largest
Rectangle in a Histogram
题意:计算连续的块的最大面积开始没看清数据范围,直接暴力很自然的TLE了。。。#include #include #include #include #include #defineN1000009 usingnamespacestd; __int64a[N]; __int64dp[100009];//前i个位置的最大面积 intmain() { intn; while(~scanf("%d",&
wust_ZJX
·
2014-07-30 19:00
leetcode_question_85
Largest
Rectangle in Histogram
Given n non-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight= [2,1,5,6,2,3].
chlele0105
·
2014-07-24 17:00
leetcode之
Largest
Rectangle in Histogram、Maximal Rectanglex;待字闺中之最大矩形分析
题目一:LargestRectangleinHistogram 参考博客intlargestRectangleArea(vector&height){ height.push_back(0);//加入一个最小高度,用于清空最后栈中的所有数据 intlength=height.size(),i=0,maxArea=0; stackstackIndex; while(i=height[stackInd
fangjian1204
·
2014-07-21 14:00
HDU 1505
Largest
Rectangle in a Histogram && HDU 1506 City Game(动态规划)
1506题意:给你连续的直方图(底边边长为1),求连续的矩阵面积。对每个直方图,分别向左向右进行扩展。#include #include #include #include #include #include #include #include #include #include #include usingnamespacestd; #defineINF1e8 #defineeps1e-8 #d
u012861385
·
2014-07-16 20:00
第二天-运算符、控制结构
Enterfourintegers:1084935
Largest
:49 Smallest:8 */ #include #defineN4 intmain(void) { intn[4]; inti,
linbounconstraint
·
2014-07-16 18:00
第七集 比较级
estshort短-------shorter---------shortest原级字尾有e+r/stnice-好-------nicer----------nicestLarge大----larger-----
largest
风信子0311
·
2014-07-15 10:46
english比较级
English
leetcode-
Largest
Rectangle in Histogram
Given n non-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight= [2,1,5,6,2,3].
maverick1990
·
2014-07-09 00:00
LeetCode
栈
分治
[LeetCode]—
Largest
Rectangle in Histogram 求直方图最大填充矩形面积
LargestRectangleinHistogramGiven n non-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,
SUN20082567
·
2014-07-08 16:00
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