Finding missing numbers in an array

Posted by sandeep on Stack Overflow See other posts from Stack Overflow or by sandeep
Published on 2010-04-07T05:10:36Z Indexed on 2010/04/07 9:03 UTC
Read the original article Hit count: 254

Filed under:

algorithm

|

interview-questions

Given an array of size n, which contains numbers in the range 1 to n, and in which each number is present at least once, but some numbers may be missing, how can I find the missing numbers?

© Stack Overflow or respective owner

Related posts about algorithm

Jpeg Algorithm vs BMP Algorithm?

as seen on Super User - Search for 'Super User'
I'm just wonder, what the differences are between creating a BMP file algorithm and JPG file algorithm ? If you know the others images' format algorithm, please post them. Thanks. >>> More
word disambiguation algorithm (Lesk algorithm)

as seen on Stack Overflow - Search for 'Stack Overflow'
Hii.. Can anybody help me to find an algorithm in Java code to find synonyms of a search word based on the context and I want to implement the algorithm with WordNet database. For example, "I am running a Java program". From the context, I want to find the synonyms for the word "running", but the… >>> More
Search algorithm (with a sort algorithm already implemented)

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, Im doing a Java application and Im facing some doubts in which concerns performance. I have a PriorityQueue which guarantees me the element removed is the one with greater priority. That PriorityQueue has instances of class Event (which implements Comparable interface). Each Event is associated… >>> More
Is there any algorithm for finding LINES by PIXEL COLORS on picture?

as seen on Stack Overflow - Search for 'Stack Overflow'
So I have Image like this I want to get something like this (I hevent drawn all lines I want but I hope you can get my idea) I need algorithm for finding all straight lines on it by just reading colors of pixels. No hard math, no Haar, no Hough. Some algorithm which would be based on points… >>> More
collsion issues with quadtree [on hold]

as seen on Game Development - Search for 'Game Development'
So i implemented a Quad tree in Java for my 2D game and everything works fine except for when i run my collision detection algorithm, which checks if a object has hit another object and which side it hit.My problem is 80% of the time the collision algorithm works but sometimes the objects just go… >>> More

Related posts about interview-questions

SQL SERVER – Interview Questions & Answers Needs Your Help

as seen on SQL Authority - Search for 'SQL Authority'
About an year ago, I had posted SQL Server related Interview Questions and Answers. It was very well received in community. I have received many comments, suggestions and emails on this subject. I am planning to upgrade the Interview Questions and Answers and take it to next level. Here, I need your… >>> More
SQL SERVER – Interview Questions and Answers – Frequently Asked Questions – Introduction – Day 1 of 31

as seen on SQL Authority - Search for 'SQL Authority'
List of all the Interview Questions and Answers Series blogs Posts covering interview questions and answers always make for interesting reading. Some people like the subject for their helpful hints and thought provoking subject, and others dislike these posts because they feel it is nothing more… >>> More
C# Multithreading Interview questions for a senior developer/designer position.

as seen on Programmers - Search for 'Programmers'
I know there have been a great deal of interview questions posted on SO and specifically i like the post "Good C# interview questions for a Senior developer position" But i really wondered what sort of interview questions were asked to a senior developer or technical consultant on multithreading… >>> More
SharePoint interview questions

as seen on Stack Overflow - Search for 'Stack Overflow'
Let's have a list of some good interview questions for SharePoint developers. Please provide one question per entry, and if possible, the answers. Also, please feel free to suggest corrections if the provided answers are wrong. I will go first: Q: How does SharePoint store pages? A: How-to-locate-sharepoint-document-library-source-page-on-the-server… >>> More
MySQL Interview Questions

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I've been asked to screen some candidates for a MySQL DBA / Developer position for a role that requires an enterprise level skill set. I myself am a SQL Server person so I know what I would be looking for from that point of view with regards to scalability / design etc but is there anything… >>> More