what reverse order

51NodIn one arrangement, if the front and back positions of a pair of numbers are opposite to the size order, that is, the previous number is greater than the subsequent number, then they are called an inverse. The total number of reverse order in a

Why can a line segment tree calculate the number of reverse orders? to give a simple sequence 9 5 3, the reverse order number is 3 first, a reverse order number is required in two ways: you can find values smaller than the current element from

I. Question This section describes how to use the sequence statistics tree to count the reverse order pairs in an array of N in the O (nlgn) time (see question 2-4.   Ii. Thinking Returns the number of reverse orders.This section describes how

Write a function that implements the reverse order of the words in the string//such as student a am I. I am a student after reverse order.#include #include #include void reverse_string (char *left, char *right ) //consecutive string reverse

Some netizens posted this question on 51js today. I thought it was to sort the content in alphabetical order. Because I have read a forward-ordered article before, I think it should be difficult to reverse-order it, after checking the information,

Welcome to the original source-- Blog Park-zhouzhendong go to the blog Park to see the puzzleTopic Portal-BZOJ4989Test Instructions SummaryEach side of a road has a sequence a, B, a length of N, and two sequences of 1 to N. When AI=BJ, an edge is

1. The simplest way of thinking, for each value, to traverse the array pairs in reverse order, but time complexity is too high;2. The idea of merging and sorting:First, the array is separated into sub-arrays, the number of reverse pairs in the

　Topic Link: http://hihocoder.com/contest/hiho39/problem/1, merge sort to seek reverse number.In fact, this problem can be done with a tree-like array, but the data are relatively large, so to be discretized preprocessing, the text will also give

1107 number of lines with slope less than 0 base time limit: 1 seconds space limit: 131072 KB Score: 40 Difficulty: 4-level algorithm There is a C (n,2) line between n points in the two-dimensional plane. The number of lines in this C (n,2) line

We know that the most typical method for reverse order is the tree array, but there is another way to do this is Merge_sort (), which is the merge sort.In fact, the number of exchanges in the merge sort is the inverse of the array, for what?We can

Topic:Two digits in the array if the previous number is greater than the number that follows, the two numbers form an inverse pair. Enter an array to find the total number of reverse pairs in this array. For example in the array {7,5,6,4} There are

Link to original topicInversionstime Limit per test:0.25 sec.Memory limit per test:4096 Kbinput:standardOutput:standardThere is N integers (1a[j].InputThe first line of the input contains the number N. The second line contains N numbers A1 ...

Topic Links:http://acm.hdu.edu.cn/showproblem.php?pid=2689Main topic:The number of exchanges required to convert a sequence of n different elements into an ascending sequence by exchanging two adjacent elementsis how much.For example: 1 2 3 5 4,

Q: Re-store the values in an array in reverse order. For example, the original order is 8,6,5,4,1. Request changed to 1,4,5,6,8.The input is two lines: the number of elements in the first row array n (1Output is a single line: The integer of the

Title: Two numbers in an array if the previous number is greater than the number that follows, then these two numbers form an inverse pair. Enter an array to find the total number of reverse pairs in this array.Problem-solving ideas: When not

Word prints in reverse order, only tips for selecting content We all know that word has a strong editing and typesetting function, and everyone is very skilled in use, but how much do you know about Word's printing function? Today I will introduce

Step 1th, open the Word2013 document window, and click the file → options menu command, as shown in Figure 1. Figure 1 Click the Options menu command Step 2nd, in the Open Word Options dialog box, switch to the Advanced tab, and then in the

In this article, we will arrange the words in the array in reverse order, such as how old are you-> your are old Sample Program Output results: The A:How old are for you!? I Don ' t understandThe second:Understand don ' t I?! are old Sample Code

1), enter n values to find the number of reverse pairs:1#include 2#include 3#include 4#include 5 #definell Long Long6 #defineMAXN 1000057 using namespacestd;8 intC[maxn],n;9 intLow_bit (inti)Ten { One returni& (-i); A } - voidUpdateintIintv) - {

1#include 2 /*3 title: The elements of an array are printed in recursive positive/reverse order, and the process of recursive invocation is understood4 positive sequence Printing array: First: array elements are contiguous. Knowing the address of