Problem 730. How many trades represent all the profit?

Created by Doug Hull

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Given a list of results from trades made:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>[1 3 -4 2 -1 2 3]</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>We can add them up to see this series of trades made a profit of 6.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>Since the two biggest trades sum to that, we can say that all the profit came from two trades.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>What is the minimum number of trades that represent the total profit (possibly exceeding it). All trade lists will represent profitable series.</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

1328 Solutions
550 Solvers

Last Solution submitted on Jan 18, 2022

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Peter Gal-Benedek on 19 Nov 2012

Robert Weinberg on 29 Mar 2013

Good problem... but they definitely need to fix the way "size" is calculated.

Problem Recent Solvers550

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 730. How many trades represent all the profit?

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers550

Suggested Problems

More from this Author52

Problem Tags

Community Treasure Hunt

Problem 730. How many trades represent all the profit?

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers550

Suggested Problems

More from this Author52

Problem Tags

Community Treasure Hunt

Players