ZZ: North American stock Market Reverse ETF and leveraged ETF list
I introduced the benefits of ETFs in two other articles, ETF stock index fund introduction and double returns and three times-fold ETF funds, respectively, the largest traded ETF series in the US stock marke

If you are a fund investor, you will definitely check the Fund's net worth. Currently, the first fund in the net worth table is 180etf, and the net worth has already exceeded 5 RMB. What is ETF?
I. ETF Concept
Essentially, ETF is a combination of open-ended Funds and closed-end funds, and it is beyond the technical limits.
The full name of

What is the-ETF in the Qianhai fund?Abbreviations are really a wonderful thing. "Trading Open index Securities Investment Fund" (Exchange traded Fund) such a long name can be simplified to three letters of the ETF. And people who know a little bit about it can make more or less associations and extensions to the features behind it as soon as they see the three letters.As an index fund, ETFs are very discipl

Bitcoinprices have reached $1260 trillion in each of the big dollar markets, hitting a record high, again winning more than the spot price per ounce of gold. The current gold spot price per ounce is $1237.73 based on the spot gold/USD Instant exchange rate available in the Bloomberg market. The Bitcoin market has seen a dizzying change in recent weeks, with the price of Bitcoin breaking through a three-year high on February 23, and the price of Bitcoin has continued to climb since then. sentimen

Don't ask, don't look at the price that 50 ETF has ever reached. Now, we can boldly predict what the future will look like.
By the way, just talk about masturbation. If it's wrong, it's just a joke.
Masters (Buffett and Lynch) are never willing to predict the stock market, because basically, this task should be done by God, and it cannot be guessed.
Fortunately, I am not a master, not a stock god, but a stock enthusiast. In fact, I am not very inte

helping investors optimize their strategy Strategy. Our multi-direal Al and other products offer the opportunity for investors to manage risk and returns in all market conditions.
Direxion is an innovator in its field-and has provided the investment community with your industry "firsts," including:
•The first250% leveraged index (LI) funds, May 2006•The firstShort small cap fund and December 1999•The firstLeveraged long 10-year Bond Fund, January 2005•The firstExposure targeting application for

This chapter mainly describes:
1.Floyd-warshall algorithm : To solve the shortest distance between any two points, the time complexity of O (n^3).
(1) The use of conditions scope: Usually can be used in any diagram, including a direction graph, with negative right side of the graph.
(2) Freud (Floyd) algorithm process:1, with D[V][W] record the shortest distance of each pair of vertices.2, scan each point in turn, and then iterate through all the values of each pair of vertex d[][] to see if th

3.2 pairs (pair) and stripes (stripe)
A common practice of synchronization in mapreduce programs is to adapt data to the execution framework by building complex keys and values. We have covered this technology in the previous chapter, that is, "package" the total number and count into a composite value (for example, pair) from Mapper to combiner and then to Cer. Based on previous publications (54,94), this section describes two common design patterns

610. Number of number pairs, 610 number Pairs
★★Input file:dec.inOutput file:dec.outSimple comparisonTime Limit: 1 s memory limit: 128 MB
DEIPThe question is a painful thing!Questions to see more also have Aesthetic Fatigue, so I give up all the familiar A + B Problem, switch to A-B haha!
Well, the question is this: Given a string of numbers and a number C, it is required to calculate the number of all the

46. Sohu (operation ):How many matching arrangement methods can be applied to the four pairs of parentheses? For example, two pairs of parentheses can have two types: () and (())
It is similar to 12 low-level questions. If 0 is used to represent "(" and 1 is used to represent ")", the minimum 8 bits of digits are 4 1 and 4 0, and from low to high to 1 and 0, the number of occurrences of 0 cannot exceed 1.

Test instructions: To a single linked list, each of its two nodes exchange, only the tail pointer, do not change the value of the element.The idea: both iterative and recursive methods are easy to write, so write a recursive one.4ms1 /**2 * Definition for singly-linked list.3 * struct ListNode {4 * int val;5 * ListNode *next;6 * ListNode (int x): Val (x), Next (NULL) {}7 * };8 */9 classSolution {Ten Public: Onelistnode* Swappairs (listnode*head) { A if(!head | |!head->next)returnhead;

Problem Description: Give a sequence, swap each adjacent two elements, and return the head node. For example: 1-2-3-4 return sequence 2-1-4-3Algorithm idea: In addition to the first set of elements, each other to exchange a pair of elements, to change four pointers. So, define four pointers. Only two of these pointers are not wanted off, others depend on these two pointers. Public StaticListNode Swappairs (ListNode head) {ListNode Pprepre=NULL;//former elements of a node pairListNode Ppre =NULL;

Instructions on the official documentation:
Ipairs (t)
Returns three Values:an iterator function, the table T, and 0, so this construction
For i,v in Ipairs (t) does body end
Would iterate over the pairs (1,t[1]), (2,t[2]), and the up to the "the" "the", the "" "," "the" ".
Pairs (t)
Returns three values:the next function, the table T, and Nil, so this construction
For k,v in

Title: Gives an algorithm for determining the number of inverse pairs in any permutation of n different elements, with the worst case requiring Θ(NLGN) time. (Hint: Modify merge sort.) ) Idea: Modify the merge sort from large to small sort.Merge sorting is divided into three steps: decomposition, resolution, and merging.Decomposition: The permutation A is decomposed into A1,A2 two sub-permutations. Settlement: The recursion from large to small arra

You are given a permutation p of length n. Also you is given m foe pairs (AI, bi) (1≤ai, Bi≤n, Ai≠bi).
Your task is to count the number of different intervals (x, y) (1≤x≤y≤n) that does not contain any foe pairs. So you shouldn ' t count intervals (x, y) this contain at least one foe pair in it (the positions and order of the values FR Om the foe pair is not important).
Consider some example:p = [1, 3, 2, 4

First, look at the original question.
Microsoft 2010 Writing Test
In an arrangement, if the front and rear positions of a pair of numbers are the opposite of the size order, that is, the preceding number is greater than the number in the following, then they are called an inverse number pair. The total number of reverse order in an arrangement is called the reverse number of this permutation. As in {2,4,3,1}, 2 and 1,4 and 3,4 and 1,3 and 1 are the reverse number

There are many answers to this question on the Internet, such as: Http://blog.csdn.net/qcgrxx/article/details/8005221 said in detail.
Questions about reverse alignment: http://www.cppblog.com/ickchen2/articles/62422.html
But in the last question on how to find the number of reverse pairs in a permutation, I know that many of the online modified merge sort O (NLGN) algorithm can be solved, but I have another use of stack O (n) method, I think it is cor

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