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

[LeetCode-interview algorithm classic-Java implementation] [070-Climbing Stairs (Stairs)], leetcode -- java [070-Climbing Stairs )][LeetCode-interview algorithm classic-Java implementation] [directory indexes for all questions]Original question
You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how

by Long LuoPersonal blog LinksRecently to interview, in a small company interview, the company's small boss gave me an algorithm problem:一个人爬楼梯，一步可以迈一级，二级，三级台阶，如果楼梯有N级，要求编写程序，求总共有多少种走法。This question should be a very old topic, in the middle school mathematics, is one 排列组合问题 . At that time, after getting this topic, first think 递归 of the idea used to solve the problem:N级楼梯问题可以划分为：N-1级楼梯，N-2级楼梯，N-3级楼梯的走法之和。First calculate how many kinds of 0,1,2,3 and stairs

Question: print the stairs and print two smiling faces above the stairs.1.ProgramAnalysis: Use I to control rows and J to control columns. j controls the number of black squares output based on I changes.2. ProgramSource code:
1 # Include 2 Int Main () 3 { Int I, J; 4 Printf ( " \ 1 \ 1 \ n " ); // Print two smiling faces 5 For (I = 1 ; I 11 ; I ++ ) 6 { For (J = 1 ; J ) 7 Printf ( "

wps How to make the most Meng little bear up stairs fun Courseware
Operation Step scene Design: Bear to complete the most of the idiom after the fill in the stairs, which students can help him?
Ride the stairs.
1, create a new slide, click "AutoShape"--Basic shape--select "Cube", pull out a cube out, select the yellow handle up and down drag adjust

question link : CCF NOI100003 up the stairs .
Time limit: 1000 ms Space limit: 262144 KB
Topic Description
Stairs have n steps, stairs can be a step up the stairs, can also step two steps. Compile a program to calculate how many different walks are in total.
input
One row, an integer n (1 .
Output
An integer, the num

Suppose you are climbing the stairs. It takes n steps before you reach the roof. Every time you can crawl1Or2a step. How many different ways can you climb to the roof? Note: Given n is a positive integer. Example1: Enter:2Output:2Explanation: There are two ways to climb to the roof. 1.1Step +1Step2.2Step Example2: Enter:3Output:3explanation: There are three ways to climb to the roof. 1.1Step +1Step +1Step2.1Step +2Step3.2Step +1StepProblem Solving Ide

The use of multimedia courseware teaching in primary schools, to enable students to not only learn a certain knowledge, but also with a strong interest in learning, the use of courseware and learners to form a good interaction between the "game" courseware to become the first choice of PPT Courseware! Here, I will work with the courseware production enthusiasts to study the design of game class courseware.
Scene Design: Bear to complete the best idiom to fill in the blanks before the staircase,

Pull up the stairs. Wedding piece Gorgeous blue purple
Stairs or walls are very good shooting scenes. If the background part is lighter, the character part is not prominent enough. When processing can use the color palette tool to deepen the background darker, generally dark purple or dark blue is advisable. And then properly beautify the character part, the effect is very level.Original

Analysis
Easy to use
Source
Https://leetcode.com/problems/climbing-stairs/
Question
You are climbing a stair case. It takesNSteps to reach to the top.
Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?
Note:GivenNWill be a positive integer.
Example 1:
Input: 2
Output: 2
Explanation: There are two ways to climb to the top.
1. 1 step + 1 step
2. 2 steps
Example 2:
Input: 3
Output: 3
Explanation: There are th

/*** Function: There is a child on the stairs, stairs have n steps, children can be on the 1, 2 or 3 order. How many ways do you calculate a child's way up the stairs? */Two ways:method One:Recursive method/** * Ideas: top-down approach. * The last step may be to go up 1 steps from the n-1 order, 2 steps up from the N-2 order or 3 steps from the n-3 step. * There

Coin change climb stairs Monkey pick BananaSuppose there are several coins, such as 1, 3, 5, and the number is infinite. Please find out the minimum number of coins that can be used to make up a certain amount of change.
#include"CoinProblem.h"
#include
int countNum=MAX;
void CoinProblem(int *coin,int Length,int Value,int count){
if(Value==0){
if(countNum>count){
countNum=count;
}
r

Leetcode notes: Climbing Stairs)
I. Description
You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?
The general idea of the question is that there are known n-level stairs, each time you can only climb level 1 or Level 2 stairs, there are several ways

TopicA. Elevator or stairs?DescriptionMasha to go from the X-storey to the Y-floor to find Egor, you can choose to climb stairs or take a helicopter elevator. It is known that climbing stairs each layer needs time T1; The helicopter elevator each floor needs time T2, the helicopter elevator opens or closes once needs the time T3, the current helicopter elevator i

Interview algorithm question: how many steps are there to climb the stairs ?, Algorithm By Long Luo
Personal blog Link
When I recently went to an interview with a small company, the company BOSS gave me an algorithm question:
A person climbs the stairs. One step can take Level 1, level 2, and level 3 steps. If there are N levels of stairs, he needs to write a pro

Title DescriptionThere is a child on the stairs, the stairs have n steps, the child can be on the 1, 2, 3 order. Please implement a method to calculate how many ways a child has to go upstairs. In order to prevent overflow, please set the result mod 1000000007Given a positive integer int n, return a number representing the number of ways to go upstairs. Guaranteed n is less than or equal to 100000.Test Samp

It is important to note that although stairs are sometimes not possible, we can wait in front of the stairs and wait until the staircase reaches the state we need, but it is also possible without a priority queue. Just think about it for a long time.#include HDU 1180 Weird Stairs.

Topic 1205:n Stair Stairs upstairs problem
time limit:1 seconds
Memory limit:128 MB
Special question: No
submitted:2817
Resolution:1073
Title Description:
N-Step stairs upstairs problem: one can walk two or one order, ask how many kinds of way upstairs. (Non-recursive requirements apply)
Input:
The input

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