backtracking

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Backtracking in scala parser combinators?

It seems like scala\'s parser combinators don\'t backtrack. I have a grammar (see bottom) which can\'t parse the following \"stmt\" correctly:[详细]

2023-02-03 08:42 分类：问答
algorithm to find longest non-overlapping sequences

I am trying to find the best way to solve the following problem. By best way I mean less complex. As an input a list of tuples (start,length) such:[详细]

2023-02-02 23:13 分类：问答
Create given string from dictionary entries

During a recent job interview, I was asked to give a solution to the following problem: Given a string s (without spaces) and a dictionary, return the words in the dictionary that compose the string.[详细]

2023-02-02 00:10 分类：问答
Java backtracking problem

i want to 开发者_JAVA技巧build a sorting method to sort array \"4,2,7,5,1\" into \"1,2,4,5,7\" my current code is[详细]

2023-01-21 14:21 分类：问答
Backtracking a balancing group in a greedy repetition may cause imbalance?

As a generically brewed example for the purpose of this question, my intent is to match some number of a\'s, then an equal number of b\'s, plus one more b.[详细]

2023-01-16 07:09 分类：问答
A recursive backtracking problem

Ok, the real problem is slightly more complicated because it uses some classes that I\'ve written instead of Strings, but it can be imagined like this: If you have a list of 700ish 3-letter words, how[详细]

2023-01-06 00:41 分类：问答
Prolog, fail and do not backtrack

Is there any build-in predicate in SWI-Prolog that will always fail AND prevent machine from backtracking - it is stop the program from executing immediately (this is not what fail/0 does)开发者_开发知[详细]

2022-12-31 03:09 分类：问答
Stopping Backtracking

Is there any way开发者_如何学Go in C/C++to stop a backtracking algorithm after finding the first solution without exiting the program.[详细]

2022-12-28 06:40 分类：问答
Explain BFS and DFS in terms of backtracking

Wikipedia about Depth First Search: Depth-first search (DFS) is an algorithm for traversin开发者_开发百科g or searching[详细]

2022-12-27 22:06 分类：问答
How to Solve N-Queens in Scheme?

I\'m stuck on the extended exercise 28.2 of How to Design Programs.I used a vector of true or false values to represent the board instead of using a list.This is what I\'ve got which doesn\'t work:[详细]

2022-12-26 15:10 分类：问答