Algorithm to find biggest three elements in array , iterate per 3 Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)Computer Algorithm Running Time Calculation Complexity of sorting algorthmsWorst case complexity of the quicksort algorithmAlgorithm to find the second smallest elementAlgorithm to find stringMultiplying array elements$O(n)$ algorithm to determine a number that appears more than $n/2$ times in an array of size $n$(Interview Q, Algorithm) Elements in two unsorted array that sum to particular integerSimple sort worst case comparisonsHow do I find the estimated number of comparisons, using a sorting algorithm on a data set?
Weaponising the Grasp-at-a-Distance spell
Why is a lens darker than other ones when applying the same settings?
Relating to the President and obstruction, were Mueller's conclusions preordained?
Moving a wrapfig vertically to encroach partially on a subsection title
Rationale for describing kurtosis as "peakedness"?
Is openssl rand command cryptographically secure?
GDP with Intermediate Production
Did any compiler fully use 80-bit floating point?
Does the Mueller report show a conspiracy between Russia and the Trump Campaign?
Why is the change of basis formula counter-intuitive? [See details]
Special flights
Does the Black Tentacles spell do damage twice at the start of turn to an already restrained creature?
What does 丫 mean? 丫是什么意思?
Central Vacuuming: Is it worth it, and how does it compare to normal vacuuming?
Delete free apps from library
What order were files/directories output in dir?
Monty Hall Problem-Probability Paradox
How to change the tick of the color bar legend to black
How many time has Arya actually used Needle?
A proverb that is used to imply that you have unexpectedly faced a big problem
Simple Http Server
Should a wizard buy fine inks every time he want to copy spells into his spellbook?
What does it mean that physics no longer uses mechanical models to describe phenomena?
If Windows 7 doesn't support WSL, then what is "Subsystem for UNIX-based Applications"?
Algorithm to find biggest three elements in array , iterate per 3
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)Computer Algorithm Running Time Calculation Complexity of sorting algorthmsWorst case complexity of the quicksort algorithmAlgorithm to find the second smallest elementAlgorithm to find stringMultiplying array elements$O(n)$ algorithm to determine a number that appears more than $n/2$ times in an array of size $n$(Interview Q, Algorithm) Elements in two unsorted array that sum to particular integerSimple sort worst case comparisonsHow do I find the estimated number of comparisons, using a sorting algorithm on a data set?
$begingroup$
So we have an array A with n different values.
n>0 and n is always divisible by 3. (Ex. n=3,n=6,n=9)
I have to find the biggest three elements in the array by iterating per group of 3 elements.
for(int i=0; i<n; i+=3)
The worst case is 2n-3 array comparisons.
So for n=3 , 3 array comparisons
n=6, 9 comparisons
n=9, 15 comparisons
I have to provide a pseudocode to give the Desired results.
I've tried many things but can't seem to find an algorithm that satisfies the worst case.
Desperate for hints or tips
Thanks in advance
algorithms
$endgroup$
add a comment |
$begingroup$
So we have an array A with n different values.
n>0 and n is always divisible by 3. (Ex. n=3,n=6,n=9)
I have to find the biggest three elements in the array by iterating per group of 3 elements.
for(int i=0; i<n; i+=3)
The worst case is 2n-3 array comparisons.
So for n=3 , 3 array comparisons
n=6, 9 comparisons
n=9, 15 comparisons
I have to provide a pseudocode to give the Desired results.
I've tried many things but can't seem to find an algorithm that satisfies the worst case.
Desperate for hints or tips
Thanks in advance
algorithms
$endgroup$
add a comment |
$begingroup$
So we have an array A with n different values.
n>0 and n is always divisible by 3. (Ex. n=3,n=6,n=9)
I have to find the biggest three elements in the array by iterating per group of 3 elements.
for(int i=0; i<n; i+=3)
The worst case is 2n-3 array comparisons.
So for n=3 , 3 array comparisons
n=6, 9 comparisons
n=9, 15 comparisons
I have to provide a pseudocode to give the Desired results.
I've tried many things but can't seem to find an algorithm that satisfies the worst case.
Desperate for hints or tips
Thanks in advance
algorithms
$endgroup$
So we have an array A with n different values.
n>0 and n is always divisible by 3. (Ex. n=3,n=6,n=9)
I have to find the biggest three elements in the array by iterating per group of 3 elements.
for(int i=0; i<n; i+=3)
The worst case is 2n-3 array comparisons.
So for n=3 , 3 array comparisons
n=6, 9 comparisons
n=9, 15 comparisons
I have to provide a pseudocode to give the Desired results.
I've tried many things but can't seem to find an algorithm that satisfies the worst case.
Desperate for hints or tips
Thanks in advance
algorithms
algorithms
asked Apr 2 at 10:16
AuruaAurua
11
11
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "69"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3171690%2falgorithm-to-find-biggest-three-elements-in-array-iterate-per-3%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Mathematics Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3171690%2falgorithm-to-find-biggest-three-elements-in-array-iterate-per-3%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown