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1 Problem Description
2 Solutions
1 problem description Write a function that converts a decimal number to its corresponding octal number. The program reads in a decimal number, calls the function to implement the number conversion, the output corresponding octal.Sample input9274Sample output22072 Sample Input18Sample output222 Solutions The specific code is as follows:Importjava.util.ArrayList;ImportJava.util.Scanner; Public classMain { Public Static voidMain (string[] ar
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1 Problem Description
2 Solutions
1 problem description Problem DescriptionWrite a program that reads in a set of integers (no more than 20), and when the user enters 0 o'clock, the input ends. The program will then find the second largest integer from this set of integers and print it out. Note: (1) 0 indicates the end of the input, which itself is not counted in this set of integers. (2) In this set of integers, both positive and negative numbers are possible. (3) The nu
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1 Problem Description
2 Solutions
1 problem description Problem DescriptionWrite a program that reads a set of integers (no more than 20) and stores them in an integer array. When the user enters 0 o'clock, the input ends. The program then stores the values in the array in reverse order and prints them out. For example: Suppose the user enters a set of data: 7 19-5 6 2 0, then the program will save the first five valid data in an array, that is, 7 19-5 6 2, and then put th
Java Virtual Machine-garbage collection algorithm, java garbage collection
This article mainly introduces the garbage collection algorithm of Java virtual machine.I. Overview
Ii. Mark-clear Algorithm
Mark-Sweep. Like the name,
1 Principle
Refer to the section 5.7 of the 5th chapter of the "Liar data Structure": KMP Pattern matching algorithm
2 Java Code
Kmp.java
Package Leaning.string.KMP; public class KMP {public static int indexkmp (string source, String Target,int pos) {/* I is used for subscript values at the current position of the main string source, if the POS is not
1 from POS position start to match/int i = pos;
Beginner, java uses the watershed algorithm for image segmentation (I), java Watershed
I am grateful to Zhou Yang, an old friend, for giving me some advice on the watershed algorithm! This article was intended to be written again after a complete result of color image segmentation, but considering that this step is als
The algorithm Java implementation of sword-finger offer
topic:
In a two-dimensional array, each row is sorted in ascending order from left to right , and each column is sorted in ascending order from top to bottom. Please complete a function, enter such a two-dimensional array and an integer to determine whether the array contains the function.
For example, the following two-dimensional array is each row, e
This article is reproduced in: http://xiemingmei.iteye.com/blog/1484587
the Java implementation of the Cartesian product algorithm:
(1) within a loop, only one column moves down one cell at a time, which is the column that Counterindex points to.(2) If the column to the tail, then this column index reset to 0, and Counterindex refers to a column forward, equivalent to carry, the front of the index plus one
Follow the machine to learn the actual Python code, with the Java rewrite LR gradient rise algorithm:
Package com.log;
Import Java.io.BufferedReader;
Import Java.io.FileInputStream;
Import Java.io.InputStreamReader;
Import Java.io.File;
Import java.util.ArrayList;
Import Java.util.Iterator;
Import Jama.matrix;
public class Logprocess {
/**
* Get Feature data
*/
Public Matrix Getdatamat () {
try {
arra
. getInstance ("SHA-1 ");
Add the information of the digest to be calculated
Alga. update (myinfo. getBytes ());
Calculate the abstract
Byte [] digesta = alga. digest ();
Your information and summary sent to others
Other people initialize with the same method, add information, and finally compare the summary.
Algb. isEqual (digesta, algb. digest ())
Related AIP
Java. security. MessageDigest class
Static getInstance (String
Java programming example code based on three algorithm questions of quick sorting, java example
Overview
Quick sorting is an update of the Bubble sorting we have learned before. They all belong to the exchange sorting class and are sorted by continuous comparison and movement. Quick sorting is a very efficient sorting algorit
1.k-means algorithm brief and code prototype
One of the most important algorithms in data mining is K-means, which I do not introduce in detail here. If you are interested, you can take a Chenhao blog:
Http://www.csdn.net/article/2012-07-03/2807073-k-means is a good speaker.
In general, K-means clustering requires the following steps:①. Initializing data②. Calculates the initial center point, which can be randomly selected③. Calculat
[LeetCode-interview algorithm classic-Java implementation] [215-Kth Largest Element in an Array (number of K in the Array)], leetcode -- java [215-Kth Largest Element in an Array (number of K in the Array )][LeetCode-interview algorithm classic-Java implementation] [director
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