August 17th, 2009, 07:32 AM
String manipulation algorithm?
I have a string composed of many substrings,My aim is to group substrings such that for each grouped substring, the number of unique elements in the same is not more than a cut off k.
lets say i have set the cut off as:4
and lets say my formula is a=b*c/(b+c) + b*c*c*e/(a+b+c+d) + f/g
substrings:b*c/(b+c) , b*c*c*e/(a+b+c+d) , f/g
in this case the optimal way to group based on the cut off of 4 is:
a=z+y ( number of unique elements : 3)
z=b*c/(b+c)+f/g ( number of unique elements : 5)
y=b*e/(a+b+d) ( number of unique elements : 5)
i need to know whats the best way to solve the problem.
implemented until now : Break up the subformulas and put them on a stack,write a function to calculate the unique element count of anystring.
Im stuck in what would be the best algorithm to implement the above mentioned difficulty, please help!
Click Here to Expand Forum to Full Width
This is a Codeguru.com survey!