vector program

Linux interrupt implementation method (I): Establishment of Interrupt registration method and abnormal vector table I have read some articles about Linux interrupt implementation on the internet, and I feel that some of them are very well written. Here I would like to thank them for their selfless efforts, then I want to add my understanding of some problems. Start with function registration. I. Method of interrupted RegistrationIn the Linux kernel, T

This article is collected and collated by www.169it.com In the STL Library of C + +, sorting can be done by saving all elements to the vector, then sorting by the sort algorithm, or by Multimap implementation when inserting elements. When sorting by vector+sort, all elements need to be stored in the vector container first, and sort will need to be taken out of th

This article on the introduction of STL vector usage is very detailed, please see below Introduced The purpose of this article is to introduce std::vector, how to properly use their member functions, and so on. The use of conditional functions and function pointers in iterative algorithms, such as in Remove_if () and For_each (), is also discussed in this paper. By reading this article readers should be a

);List2.push _ Front (I );}Printlists (list1, list2 );// Insert all elements of list1 before the first element with value 3 of list2//-Find () returns an iterator to the first element with value 3List2.splice (find (list2.begin (), list2.end (), // destination position3 ),List1); // source listPrintlists (list1, list2 );// Move first element to the endList2.splice (list2.end (), // destination positionList2, // source listList2.begin (); // Source PositionPrintlists (list1, list2 );// Sort seco

"Reasons for writing"When solving the "leetcode.113 Path Sum II", I used Java and C + + respectively, feeling that the difference there is a need to tidy up a bit."Creation of dynamic arrays"In programming, in many cases, during the pre-compilation process, the length of the array is not known in advance, it must be given dynamically when the program is run, but the problem is that when the programming language C + +, Java requires the definition of a

. The default value is ' RBF 'Degree: Dimension in ' poly ' polynomial kernel function, default is 3, other kernel functions ignore this parameterGamma: ' RBF ', ' poly ', ' sigmoid ' coefficients, if gamma is ' auto ' then default to 1/n features Here are a lot of parameters I did not mention in this article, further understand you can view here.We can optimize the SVM by changing the parameters C, \gamma and kernel functions, and the parameter optimization function in Scikit-learn is Gridsearc

Linear table, linked list, hash table is a common data structure, in Java development, the JDK has provided us with a series of corresponding classes to implement the basic data structure. These classes are all in the Java.util package. This article attempts to explain to the reader the functions of each class and how to use them correctly through a simple description.Collection├list│├linkedlist│├arraylist│└vector│└stack└setMap├hashtable├hashmap└weakh

v here Vector // At this time, the capacity of v is as much as possible to match the number of currently contained elements. // For a string, it may be as follows: String (s). swap (s ); That is, create a temporary copy that is consistent with the original vector. It is worth noting that the copy capacity is as small as possible to meet the required data. The copy is then exchanged with the orig

In fact, I used to encounter the erase problem of vector when I was writing code. I just forgot it again. This is probably the case when I went to the manheng digital interview and asked the following questions after the program runs: Vector The problem is that after the itor is erased, The for loop calls the itor again. The correct method is as follows:Vector

When it comes to arrays, you must be familiar with them. You can use indexes and pointers to operate arrays, which brings great flexibility to program design. But do you know that it has many inherent defects? First, the array out-of-bounds may cause the program to crash (if it crashes, you are lucky enough ). Secondly, the dynamic nature is not good, including dynamic change and dynamic application. This k

Use a vector graph (UI for iPhone 6) in xcode6 and xcode6iphone6 Ios applications are image-dominated products. When developing an application, you need icons of various sizes. You need to create a @ 1x size and a @ 2x size for each image file. In this way, your application looks beautiful enough. However, you must generate these files separately. With the advent of iPhone 6 and iPhone 6 Plus, this problem becomes even more troublesome: @ 3x resources

operation of the displacement. What does all this mean?This means that you just look for elements in a particular location or only add and remove elements at the end of the collection, so you can use either a vector or a ArrayList. If this is another operation, you might want to choose a different collection operation class. For example, does the Linklist collection class take the same amount of time to add or remove elements from any location in the

Vector usageThe functions included in the vector are: I wrote a program and tested several common functions: [Cpp]# Include # Include # Include # Include Using namespace std;Int main (){// InitializationVector Cout /// IteratorFor (vector Cout Cout // Test whether empty () is empty ()If (! A. empty ())Cout ElseCout Co

. resize (x) indicates that the element of the subscript [0-(x-1)] is retained as a string of x length. A. push_back () Add the element without any element to the end of the array and place it in the first position. A. pop_back () Delete the last element A. clear () clear array A. empty () Check whether array a is empty (I have never used these two) Vector can be directly assigned a value, or can be used as a function parameter or return value. Howe

reassign the object[] array.1) void ensurecapacity (int mincapacity): ArrayList or vector set of object[] ArrayIncrease mincapacity.2) void TrimToSize (): Adjusts the object[] array length of the ArrayList or vector set to the current elementNumber. The program guest calls this method to reduce the storage space occupied by the ArrayList or

fixed the position of the interrupt vector table and the starting address is changeable. 3, into the C language will be configured nvic,nvic_setvectortable () inside can configure the interrupt vector table start address and offset, mainly to tell the CPU whether the vector table is in Flash or RAM, the offset is how much. For example, set to within Flash, the o

Erase and vectorerase used in vector As a result of a previous misunderstanding of vector found in the use of the latest project, we found that we do not know much about vect, so we want to write a bit about it.Attention in vector usage. In this article, we will first talk about the erase function of vector. If there i

just a brief description of the Error.) In fact, it is a big problem and I will not discuss it for the time being. Let's look at another example: Vector Int I; // Initialize the vector container For (I = 0; I { Vectint. push_back (I ); If (3 = I) { Vectint. push_back (I ); } } Vector Vector // The following code d

How coredump works exploring vector objects and how coredump works in section 7.1 of Linux x86 Let's take a look at the example: 1 #include Let's take a look at the compilation: (gdb) b mainBreakpoint 1 at 0x8048697(gdb) rStarting program: /home/xuzhina/code/s1/xuzhina_dump_c07_s1 Breakpoint 1, 0x08048697 in main ()Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.149.el6_6.4.i686 libgc

1.vector iterators Incompatible Find the code that raised the error as follows:for (Vectortype::iterator it = Somevector.begin ();; it!= somevector.end (); ++it;){if (*it== value){Somevector.erase (IT);}}Code, after the erase operation, the loop continues without modifying it, and the assertion appears when compared to end ().The main problem here is that vector can implement erase in any way, not guarantee