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1 vote
0 answers
41 views

Algorithm for sorting by equivalence relation

I hope the thread title isn't too strange, but I don't know better. My question seems a quite simple one. Having a set of objects I'm interested in the subsets that are pairwise equal. Example: A set ...
User42's user avatar
  • 21
2 votes
2 answers
1k views

Sorting numbers with a special set of permutations

I'm wondering if there are well known sorting techniques for the following problem. Problem: Suppose you would like to sort a list of integer numbers $0, 1, 2, \ldots, d$. If one is only allowed to ...
andre's user avatar
  • 1,284
0 votes
2 answers
60 views

What is the name of shorting algorithm used? [closed]

For example, Set X = { Apple = 1, Banana = 2, Cucumber = 3 } Set Y = { CFO = 1, CFO = 2, CSO = 3 } Combinations are in some order [X, Y] = K [1, 1] = 1 [1, 2] = 2 [2, 1] = 3 [1, 3] = 4 [2, 2] = 5 [3,...
Pranav's user avatar
  • 3
0 votes
0 answers
56 views

Inversions of a Deck of Cards

Suppose I have a deck of cards in some ordering. Consider all of the other possible orderings of this same deck relative to the first one. Is there a bound we can put on the maximum number of ...
T. Fo's user avatar
  • 652
0 votes
0 answers
52 views

Sort numbers with minimum comparison

We have 6 balls of 1,2,3,4,5 and 6 grams. How to find each one's weight using a 2 sides balance (a side can take many balls).
loop's user avatar
  • 1
1 vote
1 answer
51 views

Number of comparisons of putting a sorted array of size $n$ into $k$ boxes

Suppose I have an array of numbers with size $n$, denoted as $A$ and the numbers inside have already been sorted from smallest to largest. I have $k$ boxes, and $k<n$. For each box, there is a ...
Chenxiao XU's user avatar
1 vote
1 answer
324 views

Formulating an equation for a group sorting program.

I'm trying to formulate an equation/algorithm to solve this problem (for a program I'm writing): Rules: A person, p, that is to be sorted can exclude n amount of people from the list. The excluded ...
Remmie's user avatar
  • 11
5 votes
0 answers
131 views

Analysis of sorting Algorithm with probably wrong comparator?

It is an interesting question from an Interview, I failed it. An array has $n$ different elements $[A_1 , A_2, ..., A_n]$ (random order). We have a comparator $C$, but it has a probability $p$ to ...
GeekCat's user avatar
  • 61
1 vote
1 answer
772 views

An efficient algorithm to pair chess players in a team tournament

I found this question on a website. Your team is playing a chess tournament against a visiting team. Your opponents have arrived with a team of $M$ players, numbered $1,2,\dots,M$. You have $N$ ...
user3530968's user avatar