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/***//** * Fractionserial. Java * There is a fractional sequence: 2/1, 3/2, 5/3, 8/5, 13/8, 21/13... * Calculate the sum of the first 20 items of the series. * @ Author Deng Chao (codin

# Include }/* The numerator behind the score is equal to the numerator plus the denominator of the previous score, and the denominator of the subsequent score is equal to the numerator with the previous score */ There is a fractional sequence: 2/1, 3/2, 5/3, 8/5,

There is a fractional sequence of 2/1 + 3/2 + 5/3 + 8/5 + 13/8 +... Find the sum of the first 20 items of the series.Program: # Include Output result: 32.660261 Press any key to continue

C language: There is a score sequence: 2/1 + 3/2 + 5/3 + 8/5 + 13/8 +... Find the sum of the first 20 items in this seriesProgram: # Include Output result: 32.660261 Press any key to continue

In order to omit the space and make it visible to the operator who manually fills in the paper, the volume number on the card of the materials shelf is determined to be classified and sorted, as shown in A-3, A-4, A-5, A-8 forming A-3 ~ 5, 8, etc. The following code uses a few auxiliary list /// /// Similar to 1, 2,

Question: Uses Recursion to calculate 1, 1, 2, 3, 5, 8, 13, and 21 ...... 30th bits! Effect: Code: 1 Protected Void Button#click ( Object Sender, eventargs E) 2 {

/**/ /// /// The rule for a column number is as follows: 1, 1, 2, 3, 5, 8, 13, 21, and 34 calculate the number of 30th digits, which is implemented using a recursive algorithm. (C # language) /// /// /// Public Int Getnumberatpos ( I

Using formula (n-1) 3=N3-3n2+ 3n-1 Set S3 =13+ 23+ 33+ 43+... + N3 And S2 =12+ 22+ 32+ 42+... + N2 And S1 = 1 + 2 + 3 + 4 +... + n D: S3-3S2 + 3s1-n = (

Original Address http://blog.sina.com.cn/s/blog_76b0cde40100t32r.htmlThe number that is divisible by 2 is even.The number that is divisible by 3 must add up to three for the number of digits, such as 136,1+3+6=10, 147=1+4+7=12, can.The digits are divisible by 5 by 0 or 5.The characteristic of a number divisible by 7.A

[CPP]View Plaincopyprint? Nsmutablearray *arr = [[Nsmutablearray alloc] init]; For (int i = 0; i [Arr addobject:[nsstring stringwithformat:@"damo%d", I]]; } NSLog (@"%@", arr); Nsmutablearray *bigarr = [[Nsmutablearray alloc] initwithcapacity:1]; Nsmutablearray *smallarr = nil; For (int i = 0; i if (i% 3 = = 0) { //Just read 0 3 6 9 12

, because most PHP execution time is between 1-2 seconds, the definition of more than 2 seconds can filter out a lot of unwanted information. 12.23 Open_basedir [Email protected] ~]# vim/usr/local/php-fpm/etc/php-fpm.d/www.conf [Email protected] ~]# curl-x127.0.0.1:80 test.com/3.php-ihttp/1.1 Okserver:

Hadoop version 1.2.1 Jdk1.7.0 Example 3-1: Use the urlstreamhandler instance to display files of the hadoop File System in standard output mode hadoop fs -mkdir input Create two files, file1, file2, and file1, as Hello world, and file2 as Hello hadoop, and then upload the files to the input file. The specific method is as follows: hadoop cluster (Phase 1) in the

action (U)10, replace all the etc in the entire file with a CTE (1, $s/etc/cte/g)11, move the cursor to line 25th, delete the string "ly" (25G then press J to move the cursor to the right to find "lyl", press V to select, then press x)12, Restore previous action (U)13, delete line 50th (50G DD)14, Restore previous action (U)15. Delete all contents of 第37-42 (37G 6DD)16, restore previous action (U)17, copy

Python exercise _ module01-1-3 menu _ 2, _ module01-1-3_2 Another Implementation Method of Level 3 menus: loop Function Method: http://www.cnblogs.com/jailly/p/6709573.html 1. Create a dictionary that indicates the ing between th

fil 10 select 'host copy' | Name | ' dir' from V $ datafile order by 1; 11 select 'host copy' | member | ' dir' from V $ logfile order by 1; 12 select 'host copy' | Name | ' dir' from V $ controlfile order by 1; 13 select 'host copy' | Name | ' dir' from V $ tempfile order by 1