decode

A message containing letters from A-Z is being encoded to numbers using the following mapping: 'A' -> 1 'B' -> 2 ... 'Z' -> 26 Given a non-empty string containing only digits, determine the total number of ways to decode it. Example 1: Input: "12" Output: 2 Explanation: It could be decoded as "AB" (1 2) or "L" (12). Example 2: Input: "226" Output: 3 Explanation: It could be decoded as "BZ" (2 26), "VF" (22 6), or "BBF" (2 2 6). class Solution { public int numDecodings(String s) { if(s == null || s.length() == 0) return 0; int len = s.length(); int[] dp = new int[len + 1]; dp[0] = 1; dp[1] = s

I'm tying extract some content of some equal emails with php but I can't. With that: $body = imap_body($imap_o, $email_n); I get: Pour = le r=E9cup=E9rer, il suffit de le t=E9l=E9charger, de le r=E9ceptionner puis de l=92ouvrir.=Une f= ois votre traduction termin=E9e, n=92oubliez pas de sauvegarder vos paires de langues et d=92effectuer une v=E9rification g=E9n=E9rale (statuts des segments, b= alises, nombres, espaces, majuscules, etc.).Ensui= te, cliquez sur =AB=A0Terminer et livrer=A0=BB.Voici le r=E9capitulatif du projet=A0: but there are lot of =* I know that =20 its and space, but here

　　基于之前的例子（参见 netty5自定义私有协议实例 ），我们修改下客户端handler，让发送的数据超过1024字节： 　　NettyClientHandler： /** * 构造PCM请求消息体 * * @return */ private byte[] buildPcmData() throws Exception { byte[] resultByte = longToBytes(System.currentTimeMillis()); // 读取一个本地文件 String AUDIO_PATH = "D:\\input\\test_1.pcm"; try (RandomAccessFile raf = new RandomAccessFile(AUDIO_PATH, "r")) { byte[] content = new byte[1024]; raf.read(content); resultByte = addAll(resultByte, content); } return resultByte; } /** * 将两个数组合并起来 * @param array1 * @param array2 * @return */ private byte[] addAll(byte[] array1, byte... array2) { byte[]

I am new to python. I'm confused by the <class 'str'> . I got a str by using: response = urllib.request.urlopen(req).read().decode() The type of 'response' is <class 'str'> , not <type 'str'> . When I try to manipulate this str in 'for loop': for ID in response: The 'response' is read NOT by line, BUT by character. I intend to put every line of 'response' into individual element of a list. Now I have to write the response in a file and use 'open' to get a string of <type 'str'> that I can use in 'for loop'. As mentioned by the commenters. In python3: >>>st = 'Hello Stack!' >>>type(st) <class

Why would this echo "NULL"? In my would it would be decoded to an empty array. Is it something obvious I'm missing? <?php $json = json_encode(array()); $json_decoded = json_decode($json, true); // same with json_decode($json); if ($json_decoded == null){ echo "NULL"; } else { echo "NOT NULL"; } ?> This is because array()==NULL . It does not check the object type in this case. gettype(null) returns null, whereas gettype(array()) returns array. Hope you got the difference. Probably what you need is if ($json_decoded === null) { echo "NULL"; } else { echo "NOT NULL"; } print_r the $json_decoded

I want to decode an image from the SD card with BitmapFactory.decodeFile(path, options). I also want images that are larger than 2048x2048 pixels to be scaled down to at most 2048x2048 (maintaining the proportions). I could do this manually after getting the bitmap, but that would require allocating a large amount of bytes in addition to the ones already allocated. How should i set up my BitmapFactory.Options object to get that effect? Thanks jbowes Use BitmapFactory.Options.inSampleSize when you first load your image to get the size as close as possible to your target size, then use Bitmap

How to decode the application extension block of GIF? 0000300: 73e7 d639 bdad 10ad 9c08 b5a5 0021 ff0b s..9.........!.. 0000310: 4e45 5453 4341 5045 322e 3003 0100 0000 NETSCAPE2.0..... 0000320: 21f9 0409 1900 f600 2c00 0000 0016 01b7 !.......,....... this " 21 ff0b s..9.........!.. 0000310: 4e45 5453 4341 5045 322e 30 " is known, but what is " 03 0100 0000 "? dragon66 The following describes GIF Netscape Application extension, taken from here . The block is 19 bytes long. First 14 bytes belongs to general Application Extension format, syntax is described in GIF89a Specification, section "26.