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• dynamic programming [closed]

  - by shruti

  the input to this problem is a sequence S of integers(not necessarily positive). the problem is to find consecutive subsequence of S with maximum sum using dynamic programming. consecutive means that you are not allowed to skip numbers. for example: if the input was 12,-14,1,23,-6,22,-34,-13. the output would be 1,23,-6,22.

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• Programming for Multi core Processors

  - by Chathuranga Chandrasekara

  As far as I know, the multi-core architecture in a processor does not effect the program. The actual instruction execution is handled in a lower layer. my question is, Given that you have a multicore environment, Can I use any programming practices to utilize the available resources more effectively? How should I change my code to gain more performance in multicore environments?

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• Replacement for C low level programming?

  - by Sauron

  So C obviously has a pretty dominant low level programming stronghold.....but is anything coming out that challenges/wants to replace it? Python/C#/etc all seem to be aimed at very high level, but when it comes down to nitty-gritty low level stuff C seems to be king and I haven't seen much "try" to replace that? Is there anything out there, or does learning C for low level stuff seem to be the standard?

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• Dynamic Programming Algorithm?

  - by scardin

  I am confused about how best to design this algorithm. A ship has x pirates, where the age of the jth pirate is aj and the weight of the jth pirate is wj. I am thinking of a dynamic programming algorithm, which will find the oldest pirate whose weight is in between twenty-fifth and seventy-fifth percentile of all pirates. But I am clueless as to how to proceed.

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• Are there any ball tracking algorithms/patterns around in game programming

  - by user214626

  Hello, I am a newbie to game programming,I would need the suggestions and help of the wonderful people around here. I have set of players, and a ball, the players can kick the ball around the ground (not yet a football game, neither a foosball game too ).Are there any algorithms/ patterns for addressing the problems with tracking the ball and taking decisions, Is that too much to ask.What I was looking at is something like a collision detection algorithm for the common problem of 2 objects interacting with one another.

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• What's your take on the programming language Go?

  - by fbrereto

  I've just been told about a new programming language, Go, developed at Google by such notables as Ken Thompson and Rob Pike. Does anyone have any experience with it so far? What are your thoughts about how viable small- and large-scale applications could be developed with it? Relevant links (thanks to Lance Roberts; feel free to update these as necessary): Ars-Technica PC World Google Open Source Blog Tech Talk Video Go Mailing List

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• Language for non-programmers to start learning programming

  - by zarawesome

  A non-programmer friend will be starting the Computer Science college course in a few months. I'd like her to try her hand at some programming before she starts her studies (the course itself expects one to know C, but it's an horrible language to learn to program at). What language would be the best to do so? Related question: Best ways to teach a beginner to program?

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• Is there a Chilton's like site for quoting/Programming

  - by Vecdid

  Do you know if there is anything out there like Chilton's for cars: http://chilton.cengage.com/ For programming or sites that may be like it. I am trying to get a better grip on quoting jobs and wondering if there is anything like this.

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• Big datastructures in functional programming

  - by Denis Gorodetskiy

  I'm newbie in Functional Programming. I have a huge neural network with thousands of neurons and every connection between neurons has its weight. I have to update these weights very often, several thousand times per learning session. Is FP still applicable here? I mean in fp we can't modify variables and only able to return new variables not changing previous values. Does this mean I have to recreate whole network on every weight update?

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• Windows Programming with Win32SDK/MFC/wxWidget

  - by JMSA

  Being a C#/Java programmer, I really need to know a fact: Has Windows Programming with Win32SDK/MFC/wxWidget become antiquated? What is the status of popularity of these technologies in software industry now? Being a C#/Java programmer, do I need to learn Win32SDK/MFC/wxWidget now?

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• Power of programming languages

  - by Casebash

  Are there any objective measures for measuring the power of programming languages? Turing-completeness is one, but it is not particularly discriminating. I also remember there being a few others measures of power which are more limited versions (like finite-state-autonoma), but is there any objective measure that is more powerful?

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• How to choose programming language for projects?

  - by bdhar

  This is a question I constantly encounter when I attend any technical forums / discussions / interviews. There is a similar article but it focuses on business merits as well. What I am looking for is a guide (not a checklist like this one which is abstract and not so accurate) which helps an architect to choose the programming language to implement a requirement. Is there a book or article available for the same purpose?

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• Comparisons of web programming languages (on speed, etc.)

  - by Dave

  I'm looking for a site / report / something that can compares "identical" programs (programs that do the same thing) in different web-programming languages and then compares the speeds of each of them. I agree that there will be MANY MANY criteria on which this information can be sliced and diced by, but has anyone done any real comparison of this? I am interested in web-based languages only, ie php, perl, C, C++, java, asp, asp.net, etc.

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• why "Using Goto" is bad programming ? [closed]

  - by Yogesh

  Possible Duplicates: Why is goto poor practise? GOTO still considered harmful? Hi, I have read in many book that using goto is bad programming practice, why is it so? thanks Yogesh

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• Ideas for student parallel programming project

  - by chi42

  I'm looking to do a parallel programming project in C (probably using pthreads or maybe OpenMP) for a class. It will done by a group of about four students, and should take about 4 weeks. I was thinking it would be interesting to attack some NP-complete problem with a more complex algorithm like a genetic algo with simulated annealing, but I'm not sure if it would be a big enough project. Anyone knew of any cool problems that could benefit from a parallel approach?

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• Link list usage in system programming

  - by Pwn

  Hi, in spite of having so many efficient data structures, why is only linked list used so heavily in systems programming? Is it because it allows least usage of heap/less buggy code? Regards, Pwn

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• Which programming languages support constant methods?

  - by Derek Mahar

  Which programming languages other than C++ support the concept of a constant class method? That is, what languages allow the programmer to constrain a method in such a way that it is guaranteed not to change the state of an object to which the method is applied? Please provide examples or references in your answer.

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• How to gather information on windows shell programming?

  - by terrani

  Hi, I am very interested in learning windows shell programming. So...I searched for books on the amazon.com. I see that books on the amazon.com are out of date. Most of books are published before 2005. I googled about it and found many tips and tricks, but not step by step guide. Where do I get started?

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• Efficiency of purely functional programming

  - by Sid

  Does anyone know what is the worst possible asymptotic slowdown that can happen when programming purely functionally as opposed to imperatively (i.e. allowing side-effects)? Clarification from comment by itowlson: is there any problem for which the best known non-destructive algorithm is asymptotically worse than the best known destructive algorithm, and if so by how much?

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• Programming interface

  - by user309010

  Hi All, I currently building a data collection system [mainly "EFM" - enterprise feed back management] using .NET. I was wondering if there is a possibility to provide the user to script and manipulate the objects - like a programming language but with minor functionalities Thanks

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• Functional programming and multicore architecture

  - by lonegunman

  I've read somewhere that functional programming is suitable to take advantage of multi-core trend in computin.. I didn't really get the idea. Is it related to the lambda calculus and von neumann architecture?

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• What Programming Languages are Google use ?

  - by Waseem

  hi , I'm planning to work in Google after 10 years from now . I need to know what is the requirements that I should have to work in Google as a Web Applications Developer programming languages ,skills,educational levels .....etc? Thank You

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• Programming Language with Inflection

  - by SHiNKiROU

  Is there a programming language that uses inflections (suffixing a word to add a certain meaning) instead of operators to express instructions? Just wondering.

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• basic client/server programming

  - by Zachary

  I am new to web programming...I have been asked to create a simple Internet search application which would allow transmit to the browser some data stored remotely in the server. Considering the client/server architecture (which I am new to) I would like to know if the "client" is represented only by the Internet browser and therefore the entire code of the web application should be stored in the server. As it's a very generic question a generic answer is also well accepted.

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• Help me understand this "Programming pearls" bitsort program

  - by ardsrk

  Jon Bentley in Column 1 of his book programming pearls introduces a technique for sorting a sequence of non-zero positive integers using bit vectors. I have taken the program bitsort.c from here and pasted it below: /* Copyright (C) 1999 Lucent Technologies */ /* From 'Programming Pearls' by Jon Bentley */ /* bitsort.c -- bitmap sort from Column 1 * Sort distinct integers in the range [0..N-1] */ #include <stdio.h> #define BITSPERWORD 32 #define SHIFT 5 #define MASK 0x1F #define N 10000000 int a[1 + N/BITSPERWORD]; void set(int i) { int sh = i>>SHIFT; a[i>>SHIFT] |= (1<<(i & MASK)); } void clr(int i) { a[i>>SHIFT] &= ~(1<<(i & MASK)); } int test(int i){ return a[i>>SHIFT] & (1<<(i & MASK)); } int main() { int i; for (i = 0; i < N; i++) clr(i); /*Replace above 2 lines with below 3 for word-parallel init int top = 1 + N/BITSPERWORD; for (i = 0; i < top; i++) a[i] = 0; */ while (scanf("%d", &i) != EOF) set(i); for (i = 0; i < N; i++) if (test(i)) printf("%d\n", i); return 0; } I understand what the functions clr, set and test are doing and explain them below: ( please correct me if I am wrong here ). clr clears the ith bit set sets the ith bit test returns the value at the ith bit Now, I don't understand how the functions do what they do. I am unable to figure out all the bit manipulation happening in those three functions. Please help.

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