 一个排列的算法的问题是用的C语言实现

Problem Description
Accidentally, Cupid, god of desire has hurt himself with his own dart and fallen in love with Psyche.This has drawn the fury of his mother, Venus. The goddess then throws before Psyche a great mass of mixed crops.
There are n heaps of crops in total, numbered from 1 to n.
Psyche needs to arrange them in a certain order, assume crops on the ith position is Ai.
She is given some information about the final order of the crops:
the minimum value of A1,A2,...,Ai is Bi.
the maximum value of A1,A2,...,Ai is Ci.
She wants to know the number of valid permutations. As this number can be large, output it modulo 998244353.
Note that if there is no valid permutation, the answer is 0.
Input
The first line of input contains an integer T (1≤T≤15), which denotes the number of testcases.For each test case, the first line of input contains single integer n (1≤n≤105).
The second line contains n integers, the ith integer denotes Bi (1≤Bi≤n).
The third line contains n integers, the ith integer denotes Ci (1≤Ci≤n).
Output
For each testcase, print the number of valid permutations modulo 998244353.Sample Input
2
3
2 1 1
2 2 3
5
5 4 3 2 1
1 2 3 4 5Sample Output
1
0
Dart这么吊，java怎么办？_course
20150504现在都说Dart比java开发Android好，我学校一直都在学java.....马上要出去工作了。怎么办？
Darts _course
20170416After a long week of work at the ICPC Headquarters, Bill and his friends usually go to a small pub on Friday evenings to have a couple of beers and play darts. All of them are well aware of the fact that their ability at darts decreases at the same rate as the amount of beer left in their mugs. They always play 501, one of the easiest games. Players start with a score of N points (typically, N = 501, hence the name) and take turns throwing darts. The score of each player decreases by the value of the section hit by the dart, unless the score becomes negative, in which case it remains unchanged. The first player to reach a score of 0 wins. The figure below shows the dartboard with which the game is played. Figure: Dartboard As the clock ticks closer to midnight and they start running out of beer, everyone wonders the same: is it worth trying to aim the dart at a specific section? Or is it better just to throw the dart at a random section on the dartboard? You are asked to deal with the question by finding out what would happen if two players (A and B) applying these two different strategies were to play against each other: Player A throws the darts at random, and consequently they land with equal probability in each of the sections of the dartboard. If Player B aims at a certain section, the dart has the same probability of landing in the correct one as in each of the two adjacent ones (the neighbouring regions to the left and right). Moreover, he is completely aware of his ability and sober enough to aim at the section that maximizes his probability of winning. Given the initial score of both players, can you determine the probability that the first player wins? Of course, being the first to throw a dart might be advantageous, so the answer depends on who plays first. Input The input consists of a series of lines, each containing an integer N (1 ≤ N ≤ 501), the initial score of both players. A case with N = 0 marks the end of the input and must not be processed. Output For each number in the input, your program should output a line containing two real numbers: the probability that A wins if A throws the first dart, and the probability that B wins if B throws the first dart. Your answers should be accurate to within an absolute or relative error of 108. Sample Input 5 100 0 Sample Output 0.136363636364 0.909090909091 0.072504908290 0.950215081962
Android Studio Flutter 项目配置好了之后启动不了_course
20180930项目一直启动不了，Flutter Dart的SDK配置没错 USB链接也没问题，网上说可能是因为gradle包没有导入，初始化很慢，导致超时，gradle的包我也下载了还是没法启动，就一直卡在这边，求大神指教 ![图片说明](https://imgask.csdn.net/upload/201809/30/1538300055_285627.png)
Dart Challenge _course
20171201Problem Description Clark and Harry are siblings. As they had been rivals since their early childhood, their father decided that both should concentrate on a different sport when they were thirteen. That way, they would not have to compete for success. Now both are twenty years old and excel in different fields: Clark plays chess while Harry participates in darttournaments. Having won a series of three tournaments in a row, Harry started teasing Clark about not having as much success. Clark retorted that chess was less luckbased and thus more difficult. That offended Harry and led him to the reply that in order to play darts optimally, a lot of combinatorics are necessary. Clark returned an icy smile and the comment that memorizing all different lategames could hardly be called “combinatorics”. This is how it came to the wager. Harry bets that he can find all possible lategames for generalized dartboards where memorized lategames do not help him. When Clark showed him a list of possible dartboards, Harry had to admit that he probably bit off more than he can chew. As his friend, you have to help him! A dartboard consists of different areas. Each area has an assigned score for hitting it. Each area also has a double and a triplefield that are worth twice and three times the score of the area. The only exception is the area for the highest score: It has only a double and no triplefield! Given the values of the different areas you have to find the number of possible scores that can be obtained with a given number of darts. Input The inputs start with a line containing a single integer n. Each of the n following lines contains one test case. Each test case starts with two integers 1 <= a <= 100; 1 <= k <= 50, the number of different areas on the dartboard and the number of darts. a integers 1 <= si <= 100 follow. si is the score for hitting area i. All scores are distinct. Remember that each area has a double and, with exception of the area with the highest score, a triplefield. It is always possible to score 0 with any given dart by not hitting the board. Output The output for every test case begins with a line containing “Scenario #i:”, where i is the number of the scenario counting from 1. After that, output a single line containing the number of different scores that can be obtained with k darts on the given board. Terminate each test case with an empty line. Sample Input 3 21 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 25 2 2 20 10 1 50 1 Sample Output Scenario #1: 172 Scenario #2: 9 Scenario #3: 101
组合数的排列算法问题，请问这里的序列怎么得到，用C语言。。。_course
20181209Problem Description Accidentally, Cupid, god of desire has hurt himself with his own dart and fallen in love with Psyche. This has drawn the fury of his mother, Venus. The goddess then throws before Psyche a great mass of mixed crops. There are n heaps of crops in total, numbered from 1 to n. Psyche needs to arrange them in a certain order, assume crops on the ith position is Ai. She is given some information about the final order of the crops: 1. the minimum value of A1,A2,...,Ai is Bi. 2. the maximum value of A1,A2,...,Ai is Ci. She wants to know the number of valid permutations. As this number can be large, output it modulo 998244353. Note that if there is no valid permutation, the answer is 0. Input The first line of input contains an integer T (1≤T≤15), which denotes the number of testcases. For each test case, the first line of input contains single integer n (1≤n≤105). The second line contains n integers, the ith integer denotes Bi (1≤Bi≤n). The third line contains n integers, the ith integer denotes Ci (1≤Ci≤n). Output For each testcase, print the number of valid permutations modulo 998244353. Sample Input 2 3 2 1 1 2 2 3 5 5 4 3 2 1 1 2 3 4 5 Sample Output 1 0
flutter项目无法引入qr_flutter包，packages get时候报错，望各位大佬指点迷津！_course
20180928Package qr_flutter has no versions that match >=1.1.3 <2.0.0 derived from:  zhihu depends on version ^1.1.3  Log transcript  FINE: Pub 2.0.0dev.16.0 IO : Spawning "cmd /c ver" in F:\ECAVC\zhihufluttermaster\zhihufluttermaster\. IO : Finished ver. Exit code 0.  stdout:     Microsoft Windows [Version 6.1.7601]  Nothing output on stderr. MSG : Resolving dependencies... SLVR: Solving dependencies:   cupertino_icons ^0.1.0 from hosted (cupertino_icons) (locked to 0.1.1)   flutter any from sdk (flutter) (locked to 0.0.0) IO : Get versions from https://pub.flutterio.cn/api/packages/qr_flutter. IO : HTTP GET https://pub.flutterio.cn/api/packages/qr_flutter  Accept: application/vnd.pub.v2+json  useragent: Dart pub 2.0.0dev.16.0 IO : HTTP response 200 OK for GET https://pub.flutterio.cn/api/packages/qr_flutter  took 0:00:01.060953  connection: keepalive  transferencoding: chunked  date: Fri, 28 Sep 2018 13:45:12 GMT  contentencoding: gzip  vary: AcceptEncoding  xmreqid: qWoAAP8YGXNIlFgV  contenttype: application/json  xxssprotection: 1; mode=block  xsource: C/200  xmlog: QNM:xs462;SRCPROXY:xs481;SRC:254;SRCPROXY:255;QNM3:553  server: marco/2.6  xrequestid: e6d1190402c12d9729c11b58b7ab7625  via: S.mixgdcan007, T.10.D, V.mixgdcan007, T.3.D, M.cunhncsx005  xframeoptions: SAMEORIGIN  xcontenttypeoptions: nosniff  xqnmcache: Validate,MissValidate SLVR: * start at root SLVR:  cupertino_icons 0.1.1 from hosted is locked SLVR:  * select cupertino_icons 0.1.1 from hosted SLVR:   english_words 3.1.3 from hosted is locked SLVR:   * select english_words 3.1.3 from hosted SLVR:    flutter 0.0.0 from sdk is locked SLVR:    * select flutter 0.0.0 from sdk SLVR:     collection 1.14.5 from hosted is locked SLVR:     * select collection 1.14.5 from hosted SLVR:      flutter_test 0.0.0 from sdk is locked SLVR:      * select flutter_test 0.0.0 from sdk SLVR:       * select pub itself SLVR:        args 1.2.0 from hosted is locked SLVR:        * select args 1.2.0 from hosted SLVR:         async 2.0.3 from hosted is locked SLVR:         * select async 2.0.3 from hosted SLVR:          barback 0.15.2+14 from hosted is locked SLVR:          * select barback 0.15.2+14 from hosted SLVR:           boolean_selector 1.0.2 from hosted is locked SLVR:           * select boolean_selector 1.0.2 from hosted SLVR:            charcode 1.1.1 from hosted is locked SLVR:            * select charcode 1.1.1 from hosted SLVR:             cli_util 0.1.2+1 from hosted is locked SLVR:             * select cli_util 0.1.2+1 from hosted SLVR:              convert 2.0.1 from hosted is locked SLVR:              * select convert 2.0.1 from hosted SLVR:               crypto 2.0.2+1 from hosted is locked SLVR:               * select crypto 2.0.2+1 from hosted SLVR:                csslib 0.14.1 from hosted is locked SLVR:                * select csslib 0.14.1 from hosted SLVR:                 glob 1.1.5 from hosted is locked SLVR:                 * select glob 1.1.5 from hosted SLVR:                  html 0.13.2+2 from hosted is locked SLVR:                  * select html 0.13.2+2 from hosted SLVR:                   http 0.11.3+16 from hosted is locked SLVR:                   * select http 0.11.3+16 from hosted SLVR:                    http_multi_server 2.0.4 from hosted is locked SLVR:                    * select http_multi_server 2.0.4 from hosted SLVR:                     http_parser 3.1.1 from hosted is locked SLVR:                     * select http_parser 3.1.1 from hosted SLVR:                      io 0.3.1 from hosted is locked SLVR:                      * select io 0.3.1 from hosted SLVR:                       isolate 1.1.0 from hosted is locked SLVR:                       * select isolate 1.1.0 from hosted SLVR:                        js 0.6.1 from hosted is locked SLVR:                        * select js 0.6.1 from hosted SLVR:                         logging 0.11.3+1 from hosted is locked SLVR:                         * select logging 0.11.3+1 from hosted SLVR:                          matcher 0.12.1+4 from hosted is locked SLVR:                          * select matcher 0.12.1+4 from hosted SLVR:                           meta 1.1.1 from hosted is locked SLVR:                           * select meta 1.1.1 from hosted SLVR:                            mime 0.9.5 from hosted is locked SLVR:                            * select mime 0.9.5 from hosted SLVR:                             mockito 2.2.1 from hosted is locked SLVR:                             * select mockito 2.2.1 from hosted SLVR:                              multi_server_socket 1.0.1 from hosted is locked SLVR:                              * select multi_server_socket 1.0.1 from hosted SLVR:                               node_preamble 1.4.0 from hosted is locked SLVR:                               * select node_preamble 1.4.0 from hosted SLVR:                                package_config 1.0.3 from hosted is locked SLVR:                                * select package_config 1.0.3 from hosted SLVR:                                 package_resolver 1.0.2 from hosted is locked SLVR:                                 * select package_resolver 1.0.2 from hosted SLVR:                                  path 1.5.1 from hosted is locked SLVR:                                  * select path 1.5.1 from hosted SLVR:                                   plugin 0.2.0+2 from hosted is locked SLVR:                                   * select plugin 0.2.0+2 from hosted SLVR:                                    pool 1.3.4 from hosted is locked SLVR:                                    * select pool 1.3.4 from hosted SLVR:                                     pub_semver 1.3.2 from hosted is locked SLVR:                                     * select pub_semver 1.3.2 from hosted SLVR:                                      quiver 0.28.0 from hosted is locked SLVR:                                      * select quiver 0.28.0 from hosted SLVR:                                       shelf 0.7.2 from hosted is locked SLVR:                                       * select shelf 0.7.2 from hosted SLVR:                                        shelf_packages_handler 1.0.3 from hosted is locked SLVR:                                        * select shelf_packages_handler 1.0.3 from hosted SLVR:                                         shelf_static 0.2.7 from hosted is locked SLVR:                                         * select shelf_static 0.2.7 from hosted SLVR:                                          shelf_web_socket 0.2.2 from hosted is locked SLVR:                                          * select shelf_web_socket 0.2.2 from hosted SLVR:                                           sky_engine 0.0.99 from path is locked SLVR:                                           * select sky_engine 0.0.99 from path SLVR:                                            source_map_stack_trace 1.1.4 from hosted is locked SLVR:                                            * select source_map_stack_trace 1.1.4 from hosted SLVR:                                             source_maps 0.10.4 from hosted is locked SLVR:                                             * select source_maps 0.10.4 from hosted SLVR:                                              source_span 1.4.0 from hosted is locked SLVR:                                              * select source_span 1.4.0 from hosted SLVR:                                               stack_trace 1.9.1 from hosted is locked SLVR:                                               * select stack_trace 1.9.1 from hosted SLVR:                                                stream_channel 1.6.3 from hosted is locked SLVR:                                                * select stream_channel 1.6.3 from hosted SLVR:                                                 string_scanner 1.0.2 from hosted is locked SLVR:                                                 * select string_scanner 1.0.2 from hosted SLVR:                                                  term_glyph 1.0.0 from hosted is locked SLVR:                                                  * select term_glyph 1.0.0 from hosted SLVR:                                                   test 0.12.30+1 from hosted is locked SLVR:                                                   * select test 0.12.30+1 from hosted SLVR:                                                    analyzer 0.31.1 from hosted is locked SLVR:                                                    * select analyzer 0.31.1 from hosted SLVR:                                                     front_end 0.1.0alpha.9 from hosted is locked SLVR:                                                     * select front_end 0.1.0alpha.9 from hosted SLVR:                                                      kernel 0.3.0alpha.9 from hosted is locked SLVR:                                                      * select kernel 0.3.0alpha.9 from hosted SLVR:                                                       typed_data 1.1.4 from hosted is locked SLVR:                                                       * select typed_data 1.1.4 from hosted SLVR:                                                        utf 0.9.0+3 from hosted is locked SLVR:                                                        * select utf 0.9.0+3 from hosted SLVR:                                                         vector_math 2.0.5 from hosted is locked SLVR:                                                         * select vector_math 2.0.5 from hosted SLVR:                                                          watcher 0.9.7+6 from hosted is locked SLVR:                                                          * select watcher 0.9.7+6 from hosted SLVR:                                                           web_socket_channel 1.0.6 from hosted is locked SLVR:                                                           * select web_socket_channel 1.0.6 from hosted SLVR:                                                            yaml 2.1.13 from hosted is locked SLVR:                                                            * select yaml 2.1.13 from hosted SLVR:                                                             version 1.1.2 of qr_flutter doesn't match >=1.1.3 <2.0.0:                                                              zhihu 0.0.0 (root) > qr_flutter ^1.1.3 from hosted (qr_flutter) SLVR:                                                             version 1.1.1 of qr_flutter doesn't match >=1.1.3 <2.0.0:                                                              zhihu 0.0.0 (root) > qr_flutter ^1.1.3 from hosted (qr_flutter) SLVR:                                                             version 1.1.0 of qr_flutter doesn't match >=1.1.3 <2.0.0:                                                              zhihu 0.0.0 (root) > qr_flutter ^1.1.3 from hosted (qr_flutter) SLVR:                                                             version 1.0.0 of qr_flutter doesn't match >=1.1.3 <2.0.0:                                                              zhihu 0.0.0 (root) > qr_flutter ^1.1.3 from hosted (qr_flutter) SLVR: BacktrackingSolver took 0:00:01.494368 seconds.   Tried 1 solutions   Requested 1 version lists   Looked up 1 cached version lists  FINE: Resolving dependencies finished (1.5s). ERR : Package qr_flutter has no versions that match >=1.1.3 <2.0.0 derived from:   zhihu depends on version ^1.1.3 FINE: Exception type: NoVersionException FINE: package:pub/src/entrypoint.dart 216 Entrypoint.acquireDependencies  package:pub/src/command/get.dart 38 GetCommand.run  package:args/command_runner.dart 194 CommandRunner.runCommand  package:pub/src/command_runner.dart 167 PubCommandRunner.runCommand.<fn>  dart:async new Future.sync  package:pub/src/utils.dart 103 captureErrors.<fn>  package:stack_trace Chain.capture  package:pub/src/utils.dart 118 captureErrors  package:pub/src/command_runner.dart 167 PubCommandRunner.runCommand  package:pub/src/command_runner.dart 116 PubCommandRunner.run  E:\b\build\slave\dartsdkwindowsdev\build\sdk\third_party\pkg\pub\bin\pub.dart 8 main  ===== asynchronous gap ===========================  dart:async _Completer.completeError  package:pub/src/entrypoint.dart Entrypoint.acquireDependencies  ===== asynchronous gap ===========================  dart:async _asyncThenWrapperHelper  package:pub/src/entrypoint.dart 194 Entrypoint.acquireDependencies  package:pub/src/command/get.dart 38 GetCommand.run  package:args/command_runner.dart 194 CommandRunner.runCommand  ===== asynchronous gap ===========================  dart:async new Future.microtask  package:args/command_runner.dart 142 CommandRunner.runCommand  package:pub/src/command_runner.dart 167 PubCommandRunner.runCommand.<fn>  dart:async new Future.sync  package:pub/src/utils.dart 103 captureErrors.<fn>  package:stack_trace Chain.capture  package:pub/src/utils.dart 118 captureErrors  package:pub/src/command_runner.dart 167 PubCommandRunner.runCommand  End log transcript  pub get failed (1) ``` ```
怎么用一个对象调用另一个类中对象的方法_course
20160317怎么用一个对象调用另一个类中对象的方法 比如一个类A ,一个类B,B里面有个方法show(),在main中A a=new A();B b=new B();在A中没有调用B方法的情况下，我想通过a调用B中的show()方法，该怎么实现。初学者，求大神给我指导下，不知道我表达的是否准确
怎么把字符串类型转换为日期/时间类型_course
20160719数据库里的日期是日期时间格式，sql语句获得的日期是字符串类型的，怎么将字符串类型转换为日期时间格式
如何获取某个文件绝对路径，并将该文件路径写入到txt中保存_course
20150615在程序运行时将数据存入到一个txt文件中，假设这个文件叫1号，然后点击Button1 按钮，获取1号的绝对路径，然后将该路径写入到2号txt文件中保存。希望大神能指教。以前只学过简单vb。没有vb.net 基础，希望代码能最基础，代码多点没关系。谢谢啦
flutter开发UI怎么监听焦点改变事件_course
20171222Android开发UI，监听焦点变化，我们可以使用setOnFocusChangeListener，flutter里面怎么处理焦点事件?
listView自动滚动到底部_course
20130419求助，程序中折叠的listView出现问题。 这个listView是显示词典单词的，并且可以折叠。唯一的问题是每次触摸到其中的单词，list就会滚动到底部。 XML文件： <?xml version="1.0" encoding="utf8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <RelativeLayout android:id="@+id/dicrellis" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true"> <ExpandableListView android:id="@+id/expandable_list" android:layout_width="fill_parent" android:layout_height="fill_parent" android:cacheColorHint="#00000000" android:transcriptMode="alwaysScroll"/> </RelativeLayout> </RelativeLayout> java代码： mExpandableList = (ExpandableListView)findViewById(R.id.expandable_list); mExpandableList.setAdapter(new MyCustomAdapter(Dictionary.this,arrayParents)); mExpandableList.setOnItemClickListener(this);
android studio如何去掉自己创建的方法名下面的小波浪线？_course
20160323android studio如何去掉自己创建的方法名下面的小波浪线？![图片说明](https://imgask.csdn.net/upload/201603/23/1458724916_654363.jpg) 怎么去掉小波浪线？？看着好不舒服
C#特殊的两个double类型变量相加问题_course
20150602今天在两个double型变量求和时发现一个很奇怪的问题。问题如下: 0.35+0.32=0.66999999999999993 系统环境：32位XP 开发环境：vs2010 调试时用 “即时窗口”运算也会出现这个问题。 类似的还有 0.35+0.31=0.65999999999999992 0.25+0.21=0.45999999999999996 想明白其中的原理，或者这是个编译器的bug？望大神指教
Bullseye 好难，问题都看不懂_course
20161023Problem A simple dartboard consists of a flat, circular piece of cork with concentric rings drawn on it. Darts are thrown at the board by players in an attempt to hit the center of the dartboard (the Bullseye). The region between each pair of rings (or the center and the first ring) represents a certain point value. The closer the region is to the center of the dartboard, the more points the region is worth, as shown in the diagram below: 技术分享 Ring radii are at 3", 6", 9", 12" and 15" (the Bullseye has a diameter of 6"). A game of Simple Darts between two players is played as follows. The first player throws 3 darts at the board. A score is computed by adding up the point values of each region that a dart lands in. The darts are removed. The second player throws 3 darts at the board; the score for player two is computed the same way as it is for player one. The player with the higher score wins. For this problem, you are to write a program that computes the scores for two players, and determine who, if anyone, wins the game. If a dart lands exactly on a ring (region boundary), the higher point value is awarded. Any dart outside the outer ring receives no points. For the purposes of this problem, you can assume that a dart has an infinitely fine point and can not land partially on a ring; it is either on the ring or it is not on the ring. Standard double precision floating point operations will be should be used. Input Input consists of 1 or more datasets. A dataset is a line with 12 doubleprecision values separated by spaces. Each pair of values represents the X and Y distances respectively of a dart from the center of the board in inches. (the center is located at X=0, Y=0. The range of values are: 20.0 ≤ X,Y ≤ 20.0. Player one‘s darts are represented by the first 3 pairs of values, and player two‘s by the last 3 pairs of values. Input is terminated by the first value of a dataset being 100. Output For each dataset, print a line of the form: SCORE: N to M, PLAYER P WINS. Or: SCORE: N to M, TIE. N is player one‘s score, and M is player two‘s score. P is either 1 or 2 depending on which player wins. All values are nonnegative integers. Formula Recall: r2 = x2 + y2 where r is the radius, and (x, y) are the coordinates of a point on the circle. Sample Input 9 0 0 4.5 2 2 9 0 0 4.5 2 2 19.0 19.0 0 0 0 0 3 3 6 6 12 12 100 0 0 0 0 0 0 0 0 0 0 0 Sample Output SCORE: 240 to 240, TIE. SCORE: 200 to 140, PLAYER 1 WINS.
DartaMania _course
20170501Description The game of darts has many variations. One such variation is the game of 301. In the game of 301 each player starts with a score of 301 (hence the name). Each player, in turn, throws three darts to score points which are subtracted from the player's current score. For instance, if a player has a current score of 272 and scores 55 points with the three darts, the new score would be 217. Each dart that is tossed may strike regions on the dartboard that are numbered between 1 and 20. (A value of zero indicates that the player either missed the dartboard altogether or elected to not throw the dart.) A dart that strikes one of these regions will either score the number printed on the dartboard, double the number printed, or triple the number printed. For example, a player may score 17, 34, or 51 points with a toss of one dart that hits one of the regions marked with a 17. A third way to score points with one dart is to hit the BULLS EYE which is worth 50 points. (There is no provision for doubling or tripling the bull's eye score.) The first player to reduce his score to exactly zero wins the game. If a player scores more points than his/her current score, the player is said to have "busted" and the new score is returned to the last current score. Problem Statement Given a player's current dart score, write a program to calculate all the possible combinations and permutations of scores on throwing three darts that would reduce the player's score to exactly zero (meaning the player won the game). The output of the program should contain the number of combinatons and permutations found. For example, if the player's current score is 2, then there would be two combinations and six permutations. The combinations would be: 1) obtain a score of 2 on any one dart and zero on the other two, and 2) obtain a score of one on two different darts and zero on the third dart. The order in which this is accomplished is not important. With permutations the order is significant; therefore the six permutations would be as follows: Dart 1: 2 0 0 1 1 0 Dart 2: 0 2 0 1 0 1 Dart 3: 0 0 2 0 1 1 (Note: The program doesn't print out the actual permutations & combinations, just the total number of each.) Input The input contains a list of integers (each <= 999), one per line, that represent several players' current scores. A value of zero or less will signify the end of the input file. Output For each positive integer in the input file, 2 or 3 line(s) will be written to the std output. If the score can be reduced to zero, your program should write the lines: NUMBER OF COMBINATIONS THAT SCORES x IS c. NUMBER OF PERMUTATIONS THAT SCORES x IS p. where x is the value of the player's score while c and p are the total number of combinations and permutations possible, respectively. If it is impossible to reduce the player's score to zero, write the line: THE SCORE OF x CANNOT BE MADE WITH THREE DARTS. After the line(s) above are printed, your program should write a line of 70 asterisks to separate output for different scores. The message "END OF OUTPUT" should appear at the end of the output file. Sample Input 162 175 2 68 211 114 100 Sample Output NUMBER OF COMBINATIONS THAT SCORES 162 IS 7. NUMBER OF PERMUTATIONS THAT SCORES 162 IS 28. ********************************************************************** THE SCORE OF 175 CANNOT BE MADE WITH THREE DARTS. ********************************************************************** NUMBER OF COMBINATIONS THAT SCORES 2 IS 2. NUMBER OF PERMUTATIONS THAT SCORES 2 IS 6. ********************************************************************** NUMBER OF COMBINATIONS THAT SCORES 68 IS 187. NUMBER OF PERMUTATIONS THAT SCORES 68 IS 1056. ********************************************************************** THE SCORE OF 211 CANNOT BE MADE WITH THREE DARTS. ********************************************************************** NUMBER OF COMBINATIONS THAT SCORES 114 IS 82. NUMBER OF PERMUTATIONS THAT SCORES 114 IS 445. ********************************************************************** END OF OUTPUT
Flutter使用报错error: Target of URI doesn't exist: 'package:flutter/material.dart'，且‘package get’不能运行._course
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