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10 port management of switch background management Project requirements Switch Port: 1) Port name2) Port status3) IP address of the port4) Port typeWANLAN Project realization 1. Add menu frame #include <stdio.h> #include <string.h> #include <stdlib.h> FILE *file; void init(void) { //Open file file = fopen("users.t ...

meaning of the title Title Link Give two arrays $a, b with a length of $n $$ You can replace one of $a $with the sum of all of $xor $at a time. If $a $array can be converted to $b $array, output the minimum number of operations Otherwise output $- 1$ Sol Generally, if you see this kind of $N \leqslant 10^5 $and can't do it, you must find the co ...

meaning of the title Title Link Sol At the beginning, the idea is that $f[i][j] $represents to the $I $bit, and LIS length is $j $. However, the discovery can not be transferred at all unless the previous state is known and then dp again.. It is quite violent to press the monotone stack in the process of LIS as a state.. I really don't have lon ...

meaning of the title Title Link Construct a matrix of $n * n $, and require any two adjacent numbers $a,b $, so that $max (a,b)% min (a,b) \ not = 0$ Sol My thoughts: If $mod = 1 $, you can put 23 4 5 $\ dots $in the first row, and the same is true for the first column For any position $I $, a number that must meet the requirements is a [I - 1] ...

meaning of the title Title Link Sol Long chain partition It's also a kind of violence optimized by various fancy techniques Its main idea is: for each node, the deepest child node is regarded as the heavy son, and the edge between them is regarded as the heavy edge It's going to have some very good light weight The sum of all chain lengths is ...

Because the current C + + project needs to use ajax library to post to call the ashx interface, the interface address is as follows:   The parameters to be passed are as follows:   Then it is found that qml is better to call ajax.js library, so this chapter uses C + + interface to get qml method to call ashx interface (take a C + + interfac ...

Introduction to polymorphism Polymorphic basis New object-oriented Polymorphism solution provided by C + + compiler There are three conditions for polymorphism meaning and its establishment Theoretical basis of polymorphism Multiple interview questions reinforcement Understanding of polymorphism How to realize polymorphism in C + + compile ...

Basic concepts of inheritance Inheritance and Derivation Inheritance concept Comprehensive Training of Access Control of Derived Classes (Inherit Three Ways, Class Three Access Control, Three Look Principles) Constructions and Destructions in Inheritance Type Compatibility Principle Constructions and Destructions in Inheritance Processing me ...

Title Link   Description Given two strings A B, find the longest common subsequence of A and B (subsequence does not need to be continuous). For example, two strings are: 　　　abcicba 　　　abdkscab ab is the subsequence of two strings, so is abc, and so is abca, in which abca is the longest subsequence of these two strings.   Input ...

bind function of UDP sender in network programming The effect of calling bind function on the sender of upd: assign socket to a specific port. If bind is not called, the kernel will randomly assign a port. The purpose of the upd sender calling the bind function: if there are two senders and the receiver needs to identify which sender is co ...