473,507 Members | 2,379 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Algorithm to pair prices

1 New Member
Hi there,
I'm looking for an algorithm to solve following problem:

There is a random list of floating point numbers with two positions after the decimal point (dollar prices).
Any two of those numbers can be considered a pair if they are added up and their resulting number of cents is equal to a certain number X.
Now, all pairs have to be formed in such a way that, at the end, there will be a maximum number of pairs.
Each floating point number in the list can only be used once.

I've tried a recursive brute force approach but this took too long. Does anybody have any suggestions? Thanks!
Sep 15 '07 #1
0 1022

Sign in to post your reply or Sign up for a free account.

Similar topics

1
3798
by: ritelman | last post by:
Hi I have one text field and one submit button. If I hit the submit button with a mouse the key/value pair key are properly submitted. However, if I just hit the enter key the page does get...
3
1521
by: Mark P | last post by:
I'm working with a std::multiset and I want to efficiently select a (continuous) range of elements in the set. What I know is that the desired range is exactly those elements which compare equal...
13
10987
by: M | last post by:
Hi, I've searched through the previous posts and there seems to be a few examples of search and replacing all occurrances of a string with another string. I would have thought that the code...
5
7745
by: cesco | last post by:
I have a set of pairs defined as follow: set< pair<UserEquipment*, double> > numberOfFreqSlotsToAdd; and I need to iterate through all the elements of the set in order accumulate the second...
6
4504
by: aka_eu | last post by:
I have this problem. I'm trying to get all the valid combination C(N,K) that pass one condition. For example C(5,3) can use in any combination this numbers {1,2,3,4,5} But let's say that I...
9
1826
by: shaun | last post by:
I am working on code where I am handed a vector of pointers vector<T*> or a map<std::string, T*>, and I have to delete the objects and set the pointers to zero. I have been using a 'for' loop and...
32
2152
by: =?ISO-8859-1?Q?Szabolcs_Horv=E1t?= | last post by:
I did the following calculation: Generated a list of a million random numbers between 0 and 1, constructed a new list by subtracting the mean value from each number, and then calculated the mean...
0
1133
by: subramanian100in | last post by:
consider : template<class InIt1, class InIt2, class OutIt> OutIt merge(InIt1 first1, InIt1 last1, InIt2 first2, InIt2 last2, OutIt dest); Can the destination container already contain some...
3
2392
by: subramanian100in | last post by:
Consider the following program: #include <cstdlib> #include <iostream> #include <set> #include <map> #include <algorithm> #include <iterator> #include <utility>
0
7111
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
7319
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
7376
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
0
5623
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...
1
5042
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new...
0
4702
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and...
0
3191
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The...
0
3179
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
0
412
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.