Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephon...
                            
                            
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其他好文   时间:
2015-04-24 01:04:53   
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138
                             
                    
                        
                            
                            
                                Sample Input
A B C D F
B F F C C A
D C E F
Sample Output
2.00
1.83
Unknown letter grade in input
import java.text.DecimalFormat;
import java.util.Scanner;
public class PracticeVI {
publ...
                            
                            
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其他好文   时间:
2015-04-22 11:39:20   
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                                DescriptionThe French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter'e'. He was a member of the Oulipo group. ...
                            
                            
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编程语言   时间:
2015-04-20 22:27:58   
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194
                             
                    
                        
                            
                            
                                特征集分析
数据集为letter-recognition.data,一共为20000条数据,以逗号分隔,数据实例如下所示,第一列为字母标记,剩下的为不同的特征。
T,2,8,3,5,1,8,13,0,6,6,10,8,0,8,0,8
学习方法
1、读入数据,并去除分隔号2、将数据第一列作为标记,剩下的为训练数据3、初始化分类器并利用训练数据进行训练4、利用测试数据验证准确率...
                            
                            
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编程语言   时间:
2015-04-20 15:01:11   
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427
                             
                    
                        
                            
                            
                                题目:Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telep...
                            
                            
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其他好文   时间:
2015-04-17 01:03:11   
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128
                             
                    
                        
                            
                            
                                点击打开链杭电1379
Problem Description
One measure of ``unsortedness'' in a sequence is the number of pairs of entries that are out of order with respect to each other. For instance, in the letter sequen...
                            
                            
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编程语言   时间:
2015-04-16 21:58:10   
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183
                             
                    
                        
                            
                            
                                1 题目Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letter...
                            
                            
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其他好文   时间:
2015-04-16 19:19:32   
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100
                             
                    
                        
                            
                            
                                代码: 1 #include 2 #include 3 #include 4 5 using namespace std; 6 7 vector cs = {"","","abc","def","ghi","jkl","mno","pqrs","tuv","wxyz"}; 8 vector *r.....
                            
                            
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其他好文   时间:
2015-04-15 00:58:16   
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106
                             
                    
                        
                            
                            
                                判断一个字符串中出现次数最多的字符,并统计次数//hash table方式 var s = 'aaabbbcccaaabbbaaa';var obj = {};var maxn = -1;var letter;for(var i = 0; i maxn) { maxn = obj[s[i...
                            
                            
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编程语言   时间:
2015-04-13 18:42:14   
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183
                             
                    
                        
                            
                            
                                Title:Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the te...
                            
                            
                                分类:
其他好文   时间:
2015-04-13 09:24:58   
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142