文章列表
Children are taught to add multi-digit numbers from right-to-left one digit at a time. Many find the "carry" operation - in which a 1 is carried from one digit position to be added to the next -
to be a significant challenge. Your job is to count the number of carry operations for each of ...
A character string is said to have periodkif it can be formed by concatenating one or more repetitions of another string of lengthk. For example, the string "abcabcabcabc" has period 3, since it is formed by 4 repetitions of the string "abc". It also has periods 6 (two repetit ...
UVA 272 - TEX Quotes
- 博客分类：
- UVA
TeX is a typesetting language developed by Donald Knuth. It takes source text together with a few typesetting instructions and produces, one hopes, a beautiful document. Beautiful documents use `` and " to delimit quotations, rather than the mundane"which is what is provided by most key ...
UVA 10082 - WERTYU
- 博客分类：
- UVA
A common typing error is to place the hands on the keyboard one row to the right of the correct position. So "Q" is typed as "W" and "J" is typed as "K" and so on. You are to decode a message typed in this manner.
Input consists of several lines of text. Ea ...
1 Root your phone
2 adb shell
3 su
4 chmod -R 777 /data
5 Go to DDMS view in Eclipse
A biologist is experimenting with DNA modification of bacterial colonies being grown in a linear array of culture dishes. By changing the DNA, he is able ``program" the bacteria to respond to the population density of the neighboring dishes. Population is measured on a four point scale (from ...
An algorithm given by Lothar Collatz produces sequences of integers, and is described as follows:
Step 1:
Choose an arbitrary positive integerAas the first item in the sequence.
Step 2:
IfA= 1 then stop.
Step 3:
IfAis even, then replaceAbyA/ 2 and go to step 2.
Step 4:
IfAis odd, then replaceAb ...
UVA 489 - Hangman Judge
- 博客分类：
- UVA
In ``Hangman Judge,'' you are to write a program that judges a series of Hangman games. For each game, the answer to the puzzle is given as well as the guesses. Rules are the same as the classic game of hangman, and are given as follows:
The contestant tries to solve to puzzle by guessing one l ...
android之intent的Flag详解
- 博客分类：
- Android
1.Task是包含一系列Activity的堆栈,遵循先进后出原则.
2.Task默认行为:
(1)前提:ActivityA和ActivityB在同一个应用中.
操作:ActivityA启动开僻Task堆栈(堆栈状态:A),在ActivityA中启动ActivityB(堆栈状态:AB),按下BACK返回键(堆栈状态:A).
(2)前提:ActivityA和ActivityB在同一个应用中,应用名称为"TaskOne应用".
操作:在Launcher中单击"TaskOne应用"图标,ActivityA启动开僻Task堆栈,命名为TaskA(T ...
UVA 488 - Triangle Wave
- 博客分类：
- UVA
In this problem you are to generate a triangular wave form according to a specified pair of Amplitude and Frequency.
Input and Output
The input begins with a single positive integer on a line by itself indicating the number of the cases following, each of them as described below. This line is f ...
UVA 445 - Marvelous Mazes
- 博客分类：
- UVA
Your mission, if you decide to accept it, is to create a maze drawing program. A maze will consist of the alphabetic charactersA-Z,*(asterisk), and spaces.
Input and Output
Your program will get the information for the mazes from the input file. This file will contain lines of characters whi ...
今天使用Fragment的时候，出现了这个错误IllegalStateException: Can not perform this action after onSaveInstanceState：
E/AndroidRuntime(12747):Causedby:java.lang.IllegalStateException:CannotperformthisactionafteronSaveInstanceState
atandroid.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java ...
In ``Rotating Sentences,'' you are asked to rotate a series of input sentences 90 degrees clockwise. So instead of displaying the input sentences from left to right and top to bottom, your program will display them from top to bottom and right to left.
Input and Output
As input to your program, ...
An imaging device furnishes digital images of two machined surfaces that eventually will be assembled in contact with each other. The roughness of this final contact is to be estimated.
A digital image is composed of the two characters,"X"and" "(space). There are always 25 co ...
Everybody sit down in a circle. Ok. Listen to me carefully.
``Woooooo, you scwewy wabbit!''
Now, could someone tell me how many words I just said?
Input and Output
Input to your program will consist of a series of lines, each line containing multiple words (at least one). A ``word'' is define ...