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Known 172.31.128.255/18, trial calculation:
1. Number of subnets,
2. network number,
3. host number,
4. broadcast address,
5. start and end ranges of allocable IP addresses
Solution:
1. count the number of subnets
First, replace/
In network division, if you want to use a subnet, you must know the number of subnets.
For example, if a class C network needs to be divided into subnets and six subnets are to be created, what is the mask?
First, let's talk about the IP address and the maskThe total length of the IP address is 32 characters, which
Recently I had the honor to have a small interview question, studied it, and shared it with me, hoping to help everyone's code career.The following is an interview question: calculate the number of 1 in 1-and calculate the number of 1 in 1.Solution:Copy codeThe Code is as follows:// The enumeration method can only be v
Some small algorithms are of the Java version, and a large number of questions on the network are aimed at C ++. Therefore, Java implementation is rare, but they are the basis of the test,
The implementation is the same. You can broaden your thinking and be helpful.
/*** 1 hop steps* Question: there are N levels in a step. If you can skip 1 level at a time, you can also skip 2 levels.* Calculate the total
Example of using python to calculate the number of adjacent data, and using python to calculate the number of adjacent data
Preface
This article describes how to use python to calculate the number of adjacent data and share it wit
Compile a function. When n is an even number, call the function to calculate 1/2 + 1/4 +... + 1/n. When n is an odd number, call the function 1/1 + 1/3 +... + 1/n ., Even number
First, write a function whose n is an even number:
Def peven (n): s = 0.0 for I in range (2, n
Title: 13 people in a circle, report the number from 1 to 3, and exit, and so on, calculate the number of the person who exits each round, and the number of the remaining person.
Node object:
Public class ListNode{Private int postion;Private ListNode nextNode;Private bool isOut;/// /// Location/// Public int Postion {
Calculate the number of empty cells and the number of non-empty cells in a specified area in Excel.
I. countblank
Syntax:Countblank (range)Range is the area where the number of blank cells needs to be calculated.Note: Even if the cell contains a formula that returns NULL text (""), the cell is also included, but the ce
[Huawei machine trial exercise questions] 45. Calculate the number of 1 in a binary number.
Question
Description: Question title:
Calculate the number of 1 in a binary number. Given a positive integer of the unsigned int type, th
: This article mainly introduces a php interview question (calculate the number of '1' after a decimal number is converted to binary number). If you are interested in the PHP Tutorial, refer to it. Zookeeper
This is an interview question I encountered yesterday.
At first glance, it is quite simple, but it cannot be
Calculate the number of characters-number of characters in the Statistical File, non-blank characters, letters, input to the file and the screen:
// Calculate the number of characters-number of characters in the Statistical File,
Enumeration 1 -- calculate the maximum prime number less than n, enumeration 1 -- prime numberEnumeration 1 -- calculate the maximum prime number less than n
1/* 2 enumeration is a problem solving strategy based on the answers of existing knowledge images. 3 4 problem: finding the maximum prime
/// The number of days in the current month/// /// /// /// Public static int howmonthday (INT y, int m){Int mnext;Int ynext;If (M {Mnext = m + 1;Ynext = y;}Else{Mnext = 1;Ynext = Y + 1;}Datetime dt1 = system. Convert. todatetime (Y + "-" + M + "-1 ");Datetime dt2 = system. Convert. todatetime (ynext + "-" + mnext + "-1 ");Timespan diff = dt2-dt1;Return diff. days;}
/** // /// Obtain the start and end days of a week in a year./// Year nyear/// Week cou
Calculate the prime number and Eratosthenes prime number by using eratosthenes distinct
Chapter 2 of C and pointers: 6th programming questions:
Prime number is the number that can only be divided by 1 and itself. The Eratosthenes distinct method is an effective method for ca
Package Practicego;import java.util.scanner;/* * 4. The user enters a number within 10, and the factorial of the number is calculated by Operation */public class Cto {public static void main(string[] args) {Scanner sc = new Scanner (system.in); System.out.println ("Please enter a number within 10, calculated by the system factorial"); int num = Sc.nextint (); int
The maximum number of concurrent users of a system is 1100, how can the system to calculate the maximum number of users supported.The user performance requirements are as follows: Support 1 million registered usersPerformance Requirements Analysis:1, according to the requirements of users, the system to support 1 million users, wherein the performance of the mach
My Idea 1 is to use space for time. Enter N and assign n a number of digits to assign a n * number of digits to the string, then sprintf (STR, "% d", num) to the string input, and finally
The number of 1 can be obtained from the beginning to the traversal string. The Code is as follows:
#include "stdio.h"#include "stdlib.h"int main(){int n;int num;int digit=0,ind
Note: If you enter a 10-digit number on the keyboard, the program will automatically convert it into a 16-bit binary number. Then, every four digits is a number, and write the function to calculate their sum.
The Code is as follows:
Char SumOfQuaters (unsigned short n){Int c = 0;Int I = 4;Do{C + = n 15; // bitwise a
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