Fitbit upcoming IPO, this is a smart wearable company, the main products for health testing equipment, smart bracelet, smart watch. Let's take a look at some of Fitbit's data. According to its prospectus, Fitbit sold 10.9 million wearable devices in 2014, more than twice times in 2013. As of the first quarter of 2015, Fitbit sold 20.8 million devices from its inc
Editor's note: This article from Tomasz Tunguz, the Chinese version by Heaven Zhuhai Branch Rudder compiled.
If you are concerned about these days of overseas industry news, you should be not unfamiliar with the news that Fitbit is listed on the Nasdaq and become another "unicorn"-level start-up company. We have previously written about how the GoPro's income growth rate is unbelievable. And now it seems that
Objective: To import the Fitbit daily Movement records into the R language for analysis and to draw a statistical chart toOriginal data: fitbit2014 Daily Record spreadsheet file, examples are as follows:
Date
Calories burned
Step
Distance
Number of floors climbed
A sedentary number of minutes
Less active minutes
Moderate active minutes
Very active minutes
2060: [Usaco2010 nov]visiting cows visiting cowsTime Limit:3 Sec Memory limit:64 MBsubmit:257 solved:190[Submit] [Status] [Discuss]DescriptionAfter weeks of hard work, Bessie finally ushered in a holiday. As the most sociable cow in the herd, she wants to visit N (1InputLine 1th: A single integer n 2nd. N rows: Two integers per line representing the C1 and C2 of a route.OutputA single integer that represents the maximum number of
2060: [Usaco2010 nov]visiting cows visit cow time
limit: 3 Sec
Memory Limit: MB
Submit:
Solved: 256
[Submit] [Status] [Discuss]
Description After weeks of hard work, Bessie finally ushered in a holiday. As the most sociable cow in the herd, she wants to visit N (176 23 42 31 27 65 6INPUT DETAILS:Bessie knows 7 cows. Cows 6 and 2 is dir
2060: [Usaco2010 nov]visiting cows visit cow time
limit:3 Sec Memory limit:64 MBsubmit:252 solved:185[Submit] [Status]
Description After weeks of hard work, Bessie finally ushered in a holiday. As the most sociable cow in the herd, she wants to visit N (176 23 42 31 27 65 6INPUT DETAILS:Bessie knows 7 cows. Cows 6 and 2 is directly connected by a road,As
DescriptionFarmer John's cows have discovered that the clover growing along the ridge of the hill (which we can think of as a one-dimen1_number line) in his field is special good.
Farmer John has n cows (we number the cows from 1 to n ). each of Farmer John's n cows has a range of clover That She participates ularly l
bzoj3382[usaco2004 Open]cave Cows 3 The three cows in the caveTest instructionsn points, finding the farthest Manhattan distance. n≤50000.ExercisesManhattan distance to the Chebyshev distance (point (x, Y) to point (X+y,x-y)), and then output the maximum horizontal axis-minimum horizontal and maximum ordinate-minimum ordinate the larger value.Code:1#include 2#include 3#include 4 #defineInc (I,J,K) for (int
bzoj3383[usaco2004 Open]cave Cows 4 The four cows in the caveTest instructionsThe plane Cartesian coordinate system has n points, starting from (0,0), from one point can jump to all the points with its horizontal ordinate distance ≤2, the minimum number of steps so that the ordinate is t.ExercisesSave all the points with set first. When doing DP, all the horizontal ordinate and the current node distance ≤2
bzoj3381[usaco2004 Open]cave Cows 2 The two cows in the caveTest instructionsRMQ problem. Sequence length ≤25000, number of questions ≤25000.ExercisesDouble.Code:1#include 2#include 3#include 4 #defineInc (I,J,K) for (int i=j;i5 #defineMAXN 251006 using namespacestd;7 8InlineintRead () {9 CharCh=getchar ();intf=1, x=0;Ten while(ch'0'|| Ch>'9'){if(ch=='-') f=-1; Ch=GetChar ();} One while(ch>='0
3381: [Usaco2004 open]cave cows 2 The cattle in the cave of the two time
limit:10 Sec Memory limit:128 MBSubmit:21 solved:18[Submit] [Status] [Discuss]
There is a long passage in the Description Cave. It is made up of N (1≤n≤25000) segment tails, numbered 1 to n respectively. Each channel has a threshold that ranges in [1,10^9] sequentially through I. J of the channel, the cow's body mass index can not exceed I. The minimum value of the thres
bzoj2060[usaco2010 nov]visiting Cows Visit cowsTest instructionsTo a tree, asking if a node can not be taken adjacent to its node, ask the most desirable number of nodes. The size of the tree is ≤50000.ExercisesTree-shaped DP. Make f[i][0] Do not take the I node, f[i][1] for the i node, the equation is F[i][0]=sum (max (f[j][0],f[j][1]+1)), F[i][1]=sum (F[j][0]), J is the child node of I. The final answer is Max (f[1][0],f[1][1]+1). Be careful not to
05: One of the Cows in the Cave Cows 1 Cave, cavecows
Total time limit:
10000 ms
Time limit for a single test point:
1000 ms
Memory limit:
262144kB
Description
Few people know that cows really like exploring in caves. There are N (1 ≤ N ≤ 100) chambers in the cave, connected by M (1 ≤ M ≤ 1000) bidirectiona
First, let's make sure that the longest Manhattan distance is only possible for x1+y2-(X2+y2) and x1-y1-(x2-y2) so we only need to maintain four values,Represents Max (X+y), respectively; Max (x-y); Min (x+y); Min (x-y);So the answer is Max (max (x+y)-min (x+y), Max (x-y)-min (x-y).1 Constmaxn=3000000;2 varMaxadd,minadd,maxdec,mindec,i,a,b,n:longint;3 function Max (a,b:longint): Longint;4 begin5 ifA>B then exit (a)6 Elseexit (b);7 end;8 function min (a,b:longint): Longint;9 beginTen ifaB
Story of HDU 2018 cows, story of hdu2018 cows
In recursive mode, the ox is divided into two types to find the corresponding relationship.
Today, I suddenly found that such a question is also DP. I used to think that it is a regular expression or something.
To sum up the two DP questions we have encountered, the recurrence of DP is based on the timeline and path line, and the results are classified. These
The longest ascending subsequence. Although the data can be directly N-party but another Nlogn is written.Transfer: F[i]=max (f[j]+1) (A[j]O (n^2)#include #include using namespaceStdConst intn=5005;intN,a[n],f[n],ans;intRead () {intR=0, f=1;CharP=getchar (); while(p>' 9 '|| p' 0 ') {if(p=='-') f=-1; P=getchar (); } while(p>=' 0 'p' 9 ') {r=r*Ten+p-48; P=getchar (); }returnR*f;}intMain () {n=read (); for(intI=1; i for(intI=1; i for(intj=0; jif(A[j]+1>f[i]) F[i]=f[j]+1; Ans=max (Ans,f[
1669: [usaco Oct] hungry cows hunger cows time limit: 5 sec memory limit: 64 MB
Submit: 665 solved: 419
[Submit] [Status]
Descriptionfarmer John has n (1 2 5 18 3 4 7 10 9 11 8 15
Sample output7hint
Question:
I can use it without O (nlogn), but I don't want to write it anymore. I just copied the code from the previous question.
Code:
1 var a,sta:array[0..5010] of longint; 2 i,top,n,j:longint; 3 func
>mid DoDec (r); - iflR Then - begin -tem:=Pos[l]; -pos[l]:=Pos[r]; -pos[r]:=tem; in Inc (L); - Dec (r); to end; + end; -Until l>R; the iftR then QS (T,R); * iflW then QS (l,w); $ end;Panax Notoginseng procedure SPFA; - varL,r,now,nowe:longint; the begin +Fillchar (P,sizeof(p),true); A forl:=1to n Dod[l]:=MAXN; thel:=1; r:=1; f[1]:=0; d[0]:=0; p[0]:=false; + whileL Do - begin $now:=F[l]; $nowe:=Head[now]; - whileNowe0 Do - begin the ifd[now]+1d[b[nowe].t] Then -
Http_accept_language instead of http_user_agentHttp_accept_language is actually a reflection of the default character set of the client operating system, regardless of what character set the user uses to browse your Web pageWho told you that Chinese browsers can't see websites in plain English?
First, Http_accept_language already mentionedSecond, the demand is non-zh code jump, you do not necessarily have all the possible list, with Stripos to determine once canFinally, iterate through the arr
P1824 attacking cows, P1824 attacking cowsDescription
Farmer John built a cowshed with N (2
His C (2 Input/Output Format
Input Format:
Row 3: two numbers N and C separated by spaces.
2nd ~ N + 1 rows: each row has an integer representing the coordinates of each compartment.
Output Format:
The output contains only one row, that is, the maximum closest distance between two adjacent cows.
Input and Output
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