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Algorithm Help - Splitting one string into multiple words
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Algorithm Help - Splitting one string into multiple wordsPosted:

Cyimking
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Hi,

I am trying to split a string into multiple strings. The catch?

"thisisastring" must be split to "this is a string" .

One solution I have is to use a mini dictionary of words and have a brute force method by using substrings and checking if that word is in the dictionary. Aka use a for loop.

I saw this problem on google for an interview and no this isn't for that. I am just looking for a more efficient way of doing this. For me, the dictionary is going to be filled with 25 ish words so this isn't a big deal but I am eager to find out how to implement this efficiently.


So more examples:
'keyme' = 'key me'
'testingthisout' = 'testing this out'
'lovewithme' = 'love with me'
'lovewithoutme' = 'love without me'

Ignore one letter words (like A, I, etc..)
#2. Posted:
-Deano
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The trouble I see with this, which you don't seem to have pointed out..

Surely with something like "love without me" would come up as "love with out me" instead of the words that you wanted it to display?
#3. Posted:
ip
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Okay, so lets say you have a list of words. You randomly select them and it outputs "thisisrandom". What you could do, since you have the words defined, just get the length of the string and add a space. You can go through the string and check if the word does exist, if so, add a space at that index of the string. I'll try to make something like this in a bit.
#4. Posted:
ProJimmyRustler
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So basically you are trying to convert CamelCase, or in the situation, Camelcase into readable text.

public static string DisplayCamelCaseString(string camelCase)
{
    List<char> chars = new List<char>();
    chars.Add(camelCase[0]);
    foreach(char c in camelCase.Skip(1))
    {
        if (char.IsUpper(c))
        {
            chars.Add(' ');
            chars.Add(char.ToLower(c));
        }
        else
            chars.Add(c);
    }

    return new string(chars.ToArray());
}
#5. Posted:
r00t
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Used Python. Since the computer can't know whether you want to say "without" or "with out", I have it place a slash where there are conflicts. It keeps the previously-detected word on hand to see if it shows up as part of another word and both parts of the word are not in the dictionary. This would give you "love with/out me". If "out" was added to the dictionary, it would give you "love with out me"

stringToSplit = "lovewithoutme"
dictionary = "love","with","me","without"
splitString = ""
detectedWord = ""
lastWordEnd = 0

for i in range(len(stringToSplit)+1):
   checkingStr = stringToSplit[lastWordEnd:i]
   if checkingStr in dictionary:
      detectedWord = stringToSplit[lastWordEnd:i]
      splitString += detectedWord + " "
      lastWordEnd = i
   if (detectedWord + checkingStr) in dictionary:
      splitString = splitString[:-1] + "/" + (checkingStr) + " "
      lastWordEnd = i
print(splitString)
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