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Published on 2010-01-15T21:41:24Z
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Why and when should I use stack or queue data structures instead of arrays/lists? Can you please show an example for a state thats it'll be better if you'll use stack or queue?
Thanks.
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I overused hashSets but it was slow, then changed to Stacks, speed boost-up. Poly's reply uses Collections.emptyList() as immutable list, cutting out excess null-checkers. No Collections.emptyStack(). Combining the words stack and immutability, from the last experiences, gets "immutable stack" (probably…
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My iTunes 9.0.2 hangs on launch in OS X 10.6.2. This doesn't happen all the time, only if I've been running for a while. Then it will recur until I restart. Similarly Safari 4.0.4 will hang in the flash player plugin when about to play a video. If I restart both these problems go away until later…
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I need to write a function par :: String -> Bool to verify if a given string with parentheses is matching using stack module.
Ex:
par "(((()[()])))" = True
par "((]())" = False
Here's my stack module implementation:
module Stack (Stack,
push, pop, top,
empty, isEmpty)
…
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Hey All,
I'm trying to get a TDM400P card with FXO module to connect to our PSTN line. The card is correctly detected by Linux:
[trixbox1.localdomain asterisk]# lspci
00:09.0 Communication controller:
Tiger Jet Network Inc. Tiger3XX
Modem/ISDN interface
I've run setup-pstn which…
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In pthread, After reaching yellow zone in stack, signal handler stop the recursive function by making it return
however, we can only continue to use extra area in yellow zone,
how to clear the rubbish before the yellow zone in the thread stack ?
(Copied from "answers"):
#include <pthread…
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Master Note for Troubleshooting Advanced Queuing and Oracle Streams Propagation Issues (Doc ID 233099.1)
Copyright (c) 2010, Oracle Corporation. All Rights Reserved.
In this Document Purpose Last Review Date Instructions for the Reader Troubleshooting Details 1…
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Hi,
Maybe there's no way to solve this the way I'd like it but I don't know everything so I better ask...
I've implemented a simple Queue with a dynamic array so the user can initialize with whatever number of items it wants. I'm also trying to use a void pointer as to allow any data type, but that's…
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typedef struct queue {
int q[max];
int qhead;
int qrear;
} queue;
void init_queue(queue *QUEUE)
{
QUEUE.qhead = 0;
QUEUE.qrear = -1;
}
void enqueue(queue *QUEUE,int data)
{
QUEUE.qrear++;
QUEUE.q[QUEUE.qrear] = data;
}
int process_queue(queue *QUEUE)
{
if(QUEUE.qhead > QUEUE…
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I have a decently high trafficked FreeBSD Nginx server, and I'm starting to get a large number of listen queue overflows:
[root@svr ~]# netstat -sp tcp | fgrep listen
80361931 listen queue overflows
[root@svr ~]# netstat -Lan | grep "*.80"
tcp4 192/0/128 *.80
[root@svr ~]# sysctl kern.ipc…
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JMS Step 3 - Using the QueueReceive.java Sample Program to Read a
Message from a JMS Queue
ol{margin:0;padding:0}
.c18_3{vertical-align:top;width:487.3pt;border-style:solid;background-color:#f3f3f3;border-color:#000000;border-width:1pt;padding:0pt 5pt 0pt 5pt}
.c20_3{vertical-align:top;width:487…
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