Search DaniWeb - hashing

Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by Rashakil Fol Hashing functions have absolutely nothing to do with the problem you're trying to solve. Your question is completely ridiculous or else you've paraphrased it incorrectly. hashing 13 Years Ago by starkk can any one tell me what is the advantage of using double linked list over single linked list in chain hashing during deletion and searching of the node??? Re: hashing 13 Years Ago by starkk can u pls suggest some source for the analysis of close and open hashing Hashing and Linear Probing 13 Years Ago by jwill222 …problem out but I'm having a problem creating a hashing function and handling collisions. I tried to do linear …com/answers-feb-10/computer-science/rate-highly-write-program-hashing-algorithm-create-li_759780.aspx?rec=0 I'm not asking… program for me, but i need some direction with this hashing and linear probing algorithm. Thanks :D Note: I have… Hashing Problem 15 Years Ago by prominababy …; }; Dictionary *p; Dictionary *q[99]; void mainMenu(); int hashing (string s); void addDef(); void searchDef(); void deleteDef(); void createNode…gt;b; createNode(a,b); hashVal = hashing (p->english); q[hashVal] = p; } int hashing (string s) { int total = 0;… Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by blackrobe … is in the sum result of S1 and S2. The hashing function, say [B]h[/B], must be picked at random… from a universal set of hashing functions, say [B]H[/B]. The algorithm should not take…][U]My attempt:[/U][/B] Assume H is a universal hashing family, from which h(z) is picked at random. Use… Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by blackrobe [QUOTE=Rashakil Fol;1674775]Hashing functions have absolutely nothing to do with the problem you'…, j <= n}, 0 otherwise. [/LIST] Requirements: [LIST=1] [*]Universal Hashing Families [*]Running time = O(n) [/LIST] I think the reason… as to why use hashing is to do a fast look up on the hash… Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by mrnutty … times the diff value. You need to fix that 2) Hashing is at worst linear time in theory. So that still…(n^2) in theory But its possible to make the hashing O(1) because its a sequence of number and we… can achieve perfect hashing. So you will have to assume that to assume linear… Re: Hashing guidance 15 Years Ago by hammadahmed11 …gt;next; i++; } } class Hashing{ public:Hashing(int size){ maxSize=size; a=new LinkList[maxSize…LinkList *a,priority; int maxSize; }; void main(){ Hashing ob(26); int no; char name[256]; for… Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by blackrobe … hash values of S1 and go over s in S2 hashing x-s and checking if that is saved in hash…)[/ICODE]. Then looping over every value s in S2, and hashing x - s, taking another [ICODE]0(n)[/ICODE]. Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by blackrobe …; Calculating the sums before starting to look up x. Then hashing these sums and placing them in a hash table. Then… with binary search it could be pretty fast compared to hashing all sums (which would be n/2*n/2 = n… Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by blackrobe …] Yea the whole idea of using a universal hashing family is to pick a hashing function at random by picking some constants… Re: hashing function help using Java 16 Years Ago by Alex Edwards ….println(); } } } [/code] --first this is a very VERY simplified hashing algorithm that only uses the first character for the hash… hash value. A good example of this is only hashing the first four or five characters of a string, …array more evenly. Avalanche is a concept derived from cryptographic hashing, and it offers a way to ensure that a … Re: Hashing Problem 15 Years Ago by jasonline One bug is can see inside int hashing (string s): you are declaring cname an array of 99 … Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by Rashakil Fol [QUOTE=blackrobe] I think the reason as to why use hashing is to do a fast look up on the hash … Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by TrustyTony … hash values of S1 and go over s in S2 hashing x-s and checking if that is saved in hash… Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by TrustyTony … with binary search it could be pretty fast compared to hashing all sums (which would be n/2*n/2 = n… Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by Rashakil Fol [QUOTE=firstPerson;1675509]2) Hashing is at worst linear time in theory? So that still … Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by blackrobe …'s why [ICODE]mod[/ICODE] is used, right? As a hashing function, [TEX]h(x) =\ ((ax + b) mod p) mod N… Re: Hashing algorithm to find if a number is the sum of two numbers 13 Years Ago by TrustyTony …#post1675118[/url]). Of course you must understand that set() does hashing of values. Here actually run version, with your lists: [CODE… Hashing guidance 21 Years Ago by Meldroz … too familiar with c and i need to write a hashing program that takes in a int and a a string… hashing size problem 18 Years Ago by ch1ck3n … my my .resize(). It's possible I'm doing my hashing completely wrong too, but it was right at one point… Re: hashing size problem 18 Years Ago by thekashyap … your hash function can cause. ------------- O now I saw your hashing code more closely. Well, given that you have done this… Hashing Technique: Division Method 17 Years Ago by Heleo~18 … where we were asked to make a program about any hashing technique. I chose Division because it's easier. Anyways, I… hashing function help using Java 16 Years Ago by rocky87 … of 28500 words (one word per line) and apply 2 hashing functions to each word, don't store in hash table… Hashing in C++ 16 Years Ago by nadiasheikh Hi, How to achieve hashing in C++? Can you explain this giving a small example? rgds Hashing in Java 16 Years Ago by dipsn Thank you for reply. Actually I want to hash the URLs that I crawl and to index them. That's why I want the guidance on hashing. Hashing Problem 16 Years Ago by fusi0n423 … have a project where I have to analyze 3 different hashing functions. I cannot get the cyclic shift hash to work… hashing passwords - forgetful users?! 15 Years Ago by lifeworks Hi So story goes, Ive recently started hashing user passwords to protect access, but have come to a bit of a problem in that if a user forgets their password, Im unable to retrieve it for them, because all I have is the salted-md5 hash? How has everyone else overcome this problem? lowrks hashing and using an external file 11 Years Ago by rhaylee … not sure why. Problem to be solved: Simulate the external hashing structure for a department to store the students’ information by…