stack

Looking for structure that contains the benefits of a stack but the ability to only contain one item that matches a key. For example Data comes in from various clients, I am only interested in the last piece of data from a particular client. So a dictionary would work very well. However I want to process the data from all the clients in a LIFO scenario, so a stack would be best. Any ideas on combining the two? There are several ways to interpret what you want. For instance when you Push a value with a key which already exists, what happens? Existing item is popped, new one pushed, Replace

So, I've tested vector and it seems to be running fine. However, I'm trying to implement a basic Stack class built off of my Vector class. I keep running into these errors when I go to build: stack.h(4): error C2955: 'Vector' : use of class template requires template argument list followed by: vector.h(11) : see declaration of 'Vector' stack.h(13) : see reference to class template instantiation 'Stack<T>' being compiled Here is the Vector.h file: #include<iostream> using namespace std; const int SIZEFACTOR = 4; template <class T> class Vector{ private: unsigned int size_Of_Vector; // # of

I'm working on an AI homework, and despite my professor's suggestions, I have no intention of writing this assignment in lisp. However, I do want to write it recursively, the better to keep it concise and simple. Here is my question: Am I running a major risk of running out of stack space if I perform a search over a large state space? How deep does the Python stack go? How deep does the Python stack go? The default recursion limit in python is 1000 frames. You can use sys.setrecursionlimit(n) to change that at your own risk. If you're set on using python, I would suggest using a pattern more

My lecturer gave me an assignment to create a program to convert an infix expression to postfix using Stack. I've made the stack classes and some functions to read the infix expression. But this one function, called inToPos(char string[]) which is responsible to convert the inFix expression in the string inFix to the post fix expression in the string postFix using stacks, is creating a breakpoint. Can you guys help me out and tell me what I'm doing wrong? These are my codes that badly needs your help.. :) #include<stdio.h> #include<stdlib.h> #define MAX 15 #define true 1 #define false 0

In a typical C program, the linux kernel provides 84K - ~100K of memory. How does the kernel allocate more memory for the stack when the process uses the given memory. IMO when the process takes up all the memory of the stack and now uses the next contiguous memory, ideally it should page fault and then the kernel handles the page fault. Is it here that the kernel provides more memory to the stack for the given process, and which data structure in linux kernel identifies the size of the stack for the process?? There are a number of different methods used, depending on the OS (linux realtime vs

l have 5 adjacency matrices (nump arrays) : A, B, C, D, E. each of dimension [20,20]. Given A, B, C, D, E, l would like to build F which stacks the 5 adjacency matrices. Since we have 5 2D arrays of [20,20] then F is of dimension [20*5,20*5] as follow : F=np.zeros((100,100)) F=[ [A,0,0,0,...,0], [0,...,B,...,0], [0,...,..,C,0], [0,.........D,..,0], [0,...........,E], ] such that : A is indexed at F[0][:20] B is indexed at F[1][20:40] C is indexed at F[2][40:60] D is indexed at F[3][60:80] E is indexed at F[4][80:100] What is the efficient numpy way to do that for larage number of adjacency

I am asking this because I am trying to implement interrupts in my toy kernel. So, I know that when an interrupt occurs, the CPU pushes various bits of information onto the stack. However, everywhere I search online shows different information in different order being pushed. I also know that if the interrupt occurred in user mode (Ring 3), the CPU must switch to kernel mode (Ring 0) before it can execute the ISR. I think it has something to do with the TSS and ss and esp , however I am not sure. I have read various different explanations all over the internet and have not found any uniformity

I have been reading "The Shellcoders Handbook" and been referring to this link for practice of stack overflow. But it seems the Linux kernel developers have made the kernel very secure. Here are my problems. 1) This code void function(int a, int b, int c) { char buffer1[8]; char buffer2[10]; int* ret; ret = buffer1 + 6; *ret+=8; } void main() { int x; x = 0; function(1,2,3); x = 1; printf("%d\n",x); } gives the output $ cc smash.c smash.c: In function ‘function’: smash.c:7:8: warning: assignment from incompatible pointer type $ ./a.out 1 but replacing the line *ret+=8 with *ret=8 gives the