C++ :: Hash Tables And Queues
Jun 3, 2013For my homework I need to create a hash table with a size of 7. I also need to create a queue that holds 3 names maximum for each table position
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C++ :: How To Access Vector Of Queues In Two Functions
Jan 20, 2013I have the following code which will find the minimum size queue among a vector of queues and the minimimum size queue will enqueue(push) the int
std::vector<std::queue<int> > q
void enqueue(){
int min_index = 1;
std::size_t size = q.size();
for( i=2; i<size; i++) //accessing loop of queues
if(q[min_index].size() > q[i].size())
min_index = i; // Now q[min_index] is the shortest queue
q[min_index].push(int)
}
Now my another paradigm is to do the dequeue(pop) operation in another function(shown below), bt i need to access all vector of queues declared in enqueue() function. how can i access the loop of queues given in the enqueue() function?
void dequeue(){
//q.pop operation , access all the queues in the loop of queues
}
willq[i].pop(int);
Access all the queues in the enqueue function and does the pop operation?
C++ :: How To Search The Loop Of Queues Of Vector
Feb 14, 2013i have a paradigm where a integer before gets enqueued to a queue, the loop of queues in a vector is searched and integer is enqueued to a queue which has minimum size among the queues. the following code shows the operation.
#include <vector>
#include <queue>
std::vector<std::queue<int> > q
int min_index = 0;
std::size_t size = q.size();
for( i=0; i<size; i++){ //accessing loop of queues
if(q[min_index].size() > q[i].size())
min_index = i; // Now q[min_index] is the shortest queue}
q[min_index].push(int)
next i am trying to extend my paradigm with that the condition the integers should be enqueued to the shortest queue until it becomes maximum size among the queues.
do{
q[min_index].push(int)
} while(q[min_index].size > queue sizes in the vector loop except this queue )
how to search the loop of queues of vector in the while ()
C :: Ferry Loading Using Two Queues - Can't Enter In Data After First Set Is Scanned
Feb 25, 2014I'm trying to solve the ferry loading problem using two queues. My problem is I can't enter in data after the first set is scanned in, I'm assuming there is a problem with my loop, such that the scan function doesn't get called after one iteration. In the example I marked the data I can't enter. An example correct input would be:
correct input:
1 - can enter data20 4 - can enter data
380 left - can enter data
720 left - can't enter data
1340 right - can't enter data
1040 left - can't enter data
correct output: 3
my incorrect output: 1
Code:
#include <stdio.h>
#include <stdlib.h>
#include "my_linked_list.h"
#include "my_linked_list.c"
#include "status.h"
[Code] ....
C++ :: Queues Program Suddenly Stops Working When Input Value
Feb 22, 2013I'm having troubles with this program I made. Put it simply, it's a basic program using Queues. Whenever I try to input a value, my compiler(Dev C) suddenly stops working. The .exe file crashes and I've no way on how I can execute my program.
Code :
#include<iostream>
using namespace std;
int *queue;
int rear, front, queueSize;
void enqueue();
void dequeue();
void display();
[Code] ....
C/C++ :: Run Basic Stats On 150 Tables
Mar 7, 2014I need to run some basic statistics on about ~150 tables that are currently in dBase format. Rather than use excel to do them all individually, i was told to use s+ and write a code to loop through them, but I have never written any code and my experience with spotfire s+ is limited (the stat software i have available) ....
View 4 Replies View RelatedC/C++ :: Tables Initiated With Pointers
May 23, 2014In my code I have lots of structures. I try to make tables of structures and then get access to elements of the structures to use them all along my code: here is an example to clarify things
typedef struct {
Fabric **closfabric;
}Network;
Net is part of another structure called Switch and Fabric itself is a composed structure. I have done the following
aSwitch->net.closfabric = (Fabric **)malloc(3* sizeof(Fabric *));
aSwitch->net.closfabric[0] = (Fabric *)malloc(m * sizeof(Fabric ));
aSwitch->net.closfabric[1] = (Fabric *)malloc(k * sizeof(Fabric ));
aSwitch->net.closfabric[2] = (Fabric *)malloc(m * sizeof(Fabric ));
The compilation returns a segmentation fault because aSwitch->net.closfabric is NULL (0) .
Surprisingly, in other codes the same analogy of using tables made of double pointers works perfectly with no problems and I have no problem of core dumped and NULL pointers.
Why am I getting this problem. It is the case whenever I try to use large dimension tables (tab *** struct for example)...
C++ :: Program To Display Multiplication Tables
Feb 8, 2014I have to write a program to display multiplication tables. I have written the following code:
Code:
#include <iostream>
#include <cstdio>
using namespace std;
int main(){
[Code] ....
C# :: Update Multiple Tables In One Query?
Jul 23, 2014i'm trying to update multiple table values with same column using one query.
Here's what i've tried so far:
mySql.CommandText = "Update tbl_employees,tbl_emp_additional_info,tbl_allocated_deductions,tbl_benefits,
tbl_cashadvances,tbl_deduction_history,"+
"tbl_dtr,tbl_empabsences,tbl_empstatus,tbl_otherdeductions
,tbl_ots,tbl_payroll_history,tbl_rdcomments,tbl_reversed_deductions,tbl_reversed_deduction_paid "+
"set tbl_employees.emp_id=@newemp_id,tbl_emp_additional_info.emp_id=@newemp_id,tbl_allocated_deductions.
[code]...
I've also tried removing all the other "and" operators but still no luck.It doesn't throw in exception yet it doesn't update my tables column values.
C++ :: Increase Sizes Of Queue In A Vector Of Queues And Find Shortest Queue
Feb 20, 2013I have a paradigm in a loop of queues of a vector,if a condition is true,increase sizes of the queue of that particular queue in the loop of queues, if condition is false, the queuesize is left as such in loop of queues. After this operation i need to search the queue sizes of all queues and enqueue in the shortest queue.
I want to do something like the code given below
#include <vector>
#include <queue>
int min_index = 0;
std::vector<std::queue<int> > q
std::size_t size = q.size();
[Code] ....
How to implement this logic?
will q[i].size=q[i].size+5 increase the queuesize by 5 for the ith queue?
C++ :: Five Different Tables - Array Sort Exception Return
Dec 18, 2014I am creating 5 different tables each one has 20000 more elements more than the previous when i try to sort them with the sort algorithm quick sort for the first table tha has 20000 elements runs grate then it throws this exception how is this fixable ?
Exception : terminate called after throwing an instanceof 'std::bad_alloc' this application has Requested the Runtime to terminate it in an unusual way. Please contact the applications's support team for more information. Process returned 255(0xFF) . here is the code that gives this return :
Code:
#include<time.h>
#include<stdlib.h>
#include <string.h>
#include <ctime>
using namespace std;
int * Create_Table(int table[],int N);
[Code] .....
C++ :: Enter A Value And It Will Return Corresponding Correct Answers From Tables
Dec 17, 2013Currently I have to manually look up values on several different tables in different locations. I have 8 or 10 tables with 100 to 500 parts.
I would like to write a program so if I enter a value it will return the corresponding correct answers from the tables.
If I entered 2.5 for a value it would return the following three items from the tables since they all meet the requirement.
Table 2
Part min max
235 2.4 2.9
Table 6
Part min max
589 2.3 2.5
Table 7
Part min max
12 2.3 2.7
What would the best method be for setting up and accessing tables like this? Is C++ good at representing something like this or should I be looking at a different language?
C# :: Join Tables In LINQ With Lambda Expressions
Dec 5, 2014i have stuck in a join and i cant figure out where the problem is, i have those tables
public class Themes
{
[PrimaryKey, AutoIncrement]
public int Id { get; set; }
[Code].....
C# :: Javascript Data Tables Not Showing On Page?
Nov 10, 2014The problem is that the data table doesn't show at all. Here is the code:
<%@ Page Title="" Language="C#" MasterPageFile="~/LB/MasterPage.master" AutoEventWireup="true" CodeFile="InsertedInfo.aspx.cs" Inherits="LB_InsertedInfo" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
[Code]....
C# :: Using Info From MySQL Tables And Referencing Results
May 8, 2014Basically I have a few tables in my Database.
So I have one table that is like so:
Item_ID, Name, Parent ID.
1 , jeff , 5
and another table like this:
Parent_ID, parent_Name
5,jackson
What I would like to happen, when I run my code is that I'll get the following
Item_ID, Name, parent_Name
1 , jeff , jackson
DataSet DS = new DataSet();
if (this.OpenConnection() == true) {
mySqlDataAdapter = new MySqlDataAdapter("select Item_ID, NAME, Parent_ID from table1, table2", connection);
mySqlDataAdapter.Fill(DS);
dataGridView1.DataSource = DS.Tables[0];
//close connection
this.CloseConnection();
}
So this spit out parent ID = 5.
I've not worked with Dataset before and I was just wondering what is the best approach? Can this be done via a SQL command or will I have to replace the value(5) with the string(jackson) using a large IF loop to search and replace.
C++ :: Radix Sort Not Working - Implementation Using Two Tables
Jun 13, 2014I'm trying ultimately to do a radix sort. I'm going with the implementation using two tables. One will initially hold the unsorted values then hold the partially sorted values thereafter. The other will be an array of linked lists which will be where the radix sort is done. Here is my code thus far:
Main
#include <iostream>
#include <fstream>
#include "radix.h"
#include "radix.cpp"
using namespace std ;
int main ( int argc , char * argv [ ] ) {
ifstream input ( argv [ 1 ] ) ;
[Code] ....
It appears to be crashing during void insert_into_sorted ( int to_insert , int place ) ; and I'm not sure why.
C Sharp :: Combining Multiple Access Tables Using C#
Aug 14, 2012I'm having a bit of trouble with something. What I'm trying to do is create a new Access table by combining other already existing Tables.
For instance, let's consider Table1 (with columns A, B and C), Table2 (with columns A, D and E) and Table3 (with columns A, F and G), where Table1.A = Table2.A = Table3.A.
From these, I want to create a new table TableResult, with columns A, B, C, D, E, F and G, with all the data contained in them. There's one catch: I want the code to get the names of the other columns, apart from column A.
I've thought about using Union, but I need to actually create a new table by combining the previous tables.
C# :: Link Multiple Tables In Crystal Report With Foreign Key
Apr 2, 2014i have 2 tables with primary and foreign key
Customer Details
EID - Primary Key
PurchaseDetails
PNo-Primary Key
PDate,
EID- Foreigh Key
NetAmount
Report Query written in c#
SELECT DISTINCT P.PNo, P.PDate, P.PM, P.DisAmt, P.LT, P.NT, P.EID, P.PTime, C.EName FROM PurchaseDetails AS P INNER JOIN CustomerDetails AS C ON P.EID = C.EID
In Report Automattically linked based key.
but report data not showing
C# :: Multiple Tables Conversion From Excel XLS File To XML With OpenXML
Apr 25, 2014I have downloaded this project from here -->> [URL] ....
This one works fine and it's a great commented code to understand even for beginners like myself, but it only works with one table per sheet. Once I add second table in sheet, it throws an error that something is wrong in one of the columns in my spreadsheet: It says: " Error occurs! The error message is: Cannot find column 4. "
Basically, I have this type of tables in my spreadsheet:
So I want that my program would export those two tables in a single .XML file (just read them both). And those two tables should be separated in two XML childs: the upper one should be Order-Header and the lower one - Line-Items, like this:
<ROOT>
<Order-Header>
.....
</Order-Header>
<Line-Items>
.....
</Line-Items>
</ROOT>
ConvertExcelToXML.cs:
[Code] ....
I copied all the code because I think it is the easier way to spot where to change it, to read those two tables in one spreadsheet and export them both in one XML file. How could I achieve this kind of functionality.
C# :: Entity Framework - Select Specific Column In Tables
Apr 28, 2015I need to show in a comboBox thats shows infor from Entity framework but i need to select a specific colum in the tables..
All in C# visual studio xaml form
So I created a var but i get and output: name of programe.NLHEntities
using (var context = new NLHEntities()) {
var blog = context.EtagesChambres
.Where(b => b.TypeChanbre == "Prive")
.FirstOrDefault();
textBox2Type.Text = Convert.ToString(blog);// i put a text box to see what the output would be..
}
C :: How To Add New Value To Hash Table
Apr 18, 2013I have a problem with this function that adds a new value to the hash table or updates its data if the value already exists:
Code:
int tab_add(tab_disp *td, const object *value) the function should return:
TABDISP_OK if the value is correctly added, or TABDISP_ERROR if memory error, or TABDISP_INVALID if pointer td = NULL
The type of structure I am using is the following:
Code:
typedef struct {
char key[25];
char value[100];
} object;
[code]....
C :: How To Generate Hash Table
Jul 29, 2013Code: I have these two columns.
ID Group
0 2
1 2
2 3
3 4
4 4
5 4
6 4
7 4 Code: I want to store ID values on the bases of same Group, like we do in Hash table (key, value) .
Group ID
2 0,1
3 2
4 3,4,5,6,7
so when i said key 2 it will give me 0,1. how can i do it. As first i thought that i can use array of array but then how i can store the value of key. Now I am thinking of hash but i don't know how I will store and retrieve these values.
C++ :: Duplicates In Hash Table
Feb 24, 2013I am having problems with this function:
bool HashTable::insert(char const * const key, const Player& aPlayer) {
//calculate the insertion position (the index of the array)
size_t index = calculateIndex(key);
for(int i=0; i < capacity; i++) {
[Code] ....
The inserting part works just fine, but the checking for duplicates where I compare the two values is crashing my program.
C++ :: Hash Function Implementation
Aug 26, 2013I was trying to implement a hash function in c++. This is just for learning purposes and not for a class project or assignment question. I had some questions before I started programming it:
1) Is it meaningful to have a hash function which maps string to string, string to int, int to int, float to int?
2) Can we have a template implementation which does element to element hashing?
I looked at several sources for a clear understanding of concepts and implementation technique but could not find a good source for reading about hashing.
C/C++ :: PJW Algorithm Of Hash Table
Jul 28, 2012I have a doubt in the PJW algorithm of the Hash Table.
What is the logic in shifting the bytes by this specified number as specified in the pjw algorithm.
Visual C++ :: How To Define A Hash Map
May 15, 2014I want a speed of O(1) in search, insertion and deletion.
is std::map<> the way to go?