C++ :: Row And Column Index?
Dec 16, 2013
If i have current index and row/columns count how do i get on which row and on which column index is individually?
This is what i have tried, but column index is incorrect:
#include <iostream>
int main()
{
int rows = 5;
int colm = 6;
int inx = 12;
int rowInx = inx % rows;
int colInx = inx % colm;
std::cout << "row: " << rowInx << std::endl;
std::cout << "col: " << colInx << std::endl;
return 0;
}
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Apr 11, 2013
For example If I have the following . How would I sum each row and column ??
For example
1 2 3 4 5
0 1 3 8 9
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Jul 3, 2014
Suppose I want to represent an apartment building in terms of floors and rooms with a single data object. Each floor has the same number of rooms at any given time. During the course of the program, I will need to change the number of floors occasionally and will need to change the number of rooms on each floor occasionally. (Don't worry about the building permits needed to do this.) Now, I also want to be able to iterate over either each floor (think "row") or each room (think "column"). For example, I might want to program the equivalent of "Johnson, go fix all the front doors on the 8th floor" or the equivalent of "Johnson, go fix all the front doors to room B on each floor". (Yeah, I know, for the latter I could iterate over each floor and then access room B but that doesn't feel as "clean" as being able to iterate over a separate room/column.)
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Jul 31, 2014
Suppose I want to represent an apartment building in terms of floors and rooms with a single data object. Each floor has the same number of rooms at any given time. During the course of the program, I will need to change the number of floors occasionally and will need to change the number of rooms on each floor occasionally. (Don't worry about the building permits needed to do this.)
Now, I also want to be able to iterate over either each floor (think "row") or each room (think "column"). For example, I might want to program the equivalent of "Johnson, go fix all the front doors on the 8th floor" or the equivalent of "Johnson, go fix all the front doors to room B on each floor". (Yeah, I know, for the latter I could iterate over each floor and then access room B but that doesn't feel as "clean" as being able to iterate over a separate room/column.)
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Oct 18, 2013
I have a 2d array where I manage donations and requests for different foods. I output a menu to the user who picks the options to either make a donation, make a request, fulfill a request, or print a status report of all the donations and requests. What I'm having trouble with is the fulfilling requests option. When the user picks fulfill requests that means that the donations are supposed to be subtracted from the requests. For example if there are 10 donations for grains and 15 requests for grains then after picking fulfill request there should be 0 donations for grains and 5 requests for grains but I don't know how to make the program do that since the values are in a 5 row by 2 column array. The five rows correspond to the five foods and the two columns correspond to donations and requests, respectively. Here's my code so far. Just disregard everything but the third case.
Code:
#include <stdio.h>int main(){
int foodbank[5][2]= {
{0,0},
{0,0},
[Code]....
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Oct 24, 2013
i have a matrix containing a lot of points and each point has its coordinates x and y. That is a nx2 size array. I want to sort it according to the first column ascending, with x coordinates. For points that have the same x coord i would like to sort according to y coord. Here is what i did and i cannot get a good result.
Code:
#include <stdio.h>
#include <stdlib.h>
int main(){
int a[5][2] = {{1,0}, {4,2}, {2,4}, {8,6},{4,8}};
int temp=0;
int i=0;
int j=0;
[Code]...
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Apr 6, 2013
I need sorting a particular column (column 1) of a .cvs file (the file has 10 columns) by alphabetic order. How I can accomplish this ?
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Feb 21, 2014
void calcWeeklyPay(double empData[][COLS], const int count) {
double wage;
double hour;
int row;
for (row = 0 ; row < count; row++); {
hour = empData[row][0];
wage = empData[row][1];
[Code] ....
I'm really stuck on this problem...Why is it in my salary column all it outputs its 0? How would i fix this ?
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Feb 18, 2014
I'm using GCC 4.8.1 and I want to implement a XML parser using TinyXML and port it to AngelScript
Now, it says: reference to 'Column' is ambiguous
I've declared a class called xml_parser and I've added everything of tinyxml as it's public member when I call Column(), and also Row(), it give's this error. what should I do?
This is it's code:
xml_parser.hpp:
#ifndef AGK_XML_PARSER_H
#define AGK_XML_PARSER_H
#define TIXML_USE_STL
#include <tinyxml.h>
[Code] .....
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Jul 11, 2013
I suppose to have the following matrix
A). I want to remove a generic row and column. For instance the second row and column, then I get
B). How can I realize it in C?How to do.
A) B)
a00 a01 a02
a00 a02
a10 a11 a12a20 a22
a20 a21 a22
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Oct 2, 2014
I have .db3 file, and he has 14 tables,and every table has certain number of columns. Example i have table called "BASIC_INFO" and that table has columns "First Name", "Last Name" and "Age".
How can i get name of table and name of every column,so if i some day add column "Male" i get name of this column too. I need first to calculate number of columns,put that in some integer, and then for example create string array which will contain : array[0] = "First Name" ,array[1] = "Last Name"...
SQLiteConnection myConn = new SQLiteConnection("Data Source=" + DB3Path + ";Version=3;New=False;Compress=True;");
//string query = "Select * From " + DB3Path + ".INFORMATION_SCHEMA.COLUMNS";
string query = "Select * From BASIC_INFO.INFORMATION_SCHEMA.COLUMNS;";
SQLiteCommand sqCommand = new SQLiteCommand(query);
[Code] ....
I tried this too:
string query = "select * from INFORMATION_SCHEMA.COLUMNS"
+ "where TABLE_Name='BASIC_INFO'"
+ "order by ORDINAL_POSITION;";
string query = "SELECT TOP 0 * FROM BASIC_INFO";
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Oct 18, 2014
I am writing a code in which i need to grab a column from a variety of tables. So basically there are 10 tables in which they hey have the same columns inside of them (Submitted and Amount). I need to grab the amount column from all the tables. What would be the c# sql command for that.
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Oct 7, 2014
I have question regarding Gridview.
Can i set each column in Gridview with different Datasource ? for example I create Gridview with 3 column , can I set each column with different datasource ?
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Apr 24, 2014
I cannot check the checkbox in my datagridview.
Here is my code.
First, I added a checkbox column.
private void addCheckBoxColumn() {
DataGridViewCheckBoxColumn checkColumn = new DataGridViewCheckBoxColumn();
checkColumn.Name = "clmCheck";
checkColumn.HeaderText = "";
checkColumn.Width = 100;
checkColumn.ReadOnly = false;
dgv1.Columns.Add(checkC
[Code] ....
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Oct 19, 2014
When I try to link combobox with sql column i get error !!
void comfunction() {
string constring = "Data Source=LC-VAIO\SQLEXPRESS;Initial Catalog=sample1;Integrated Security=True";
string query = "select * from tbltest";
SqlConnection cn = new SqlConnection(constring);
SqlCommand cmd = new SqlCommand(query,cn);
SqlDataReader dreader;
[Code] ....
I got error from "string sname = dreader.GetString("name"); "
And this how i try to link it...
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Nov 23, 2012
You have two array and you want to replace the column of one of them to the row of another?
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Apr 17, 2014
I was trying to debug a code which was behaving in an abnormal way
Code:
#define NOOFELEMENTS 32
unsigned char array[NOOFELEMENTS];
unsigned char array1[23];
init() {
for(i=0;i<=32;i++)
{
array[NOOFELEMENTS] = 0
}
}
I could trace the above one of the mistakes where the array initialization is crossing the array limits and writing into array[32] which is not available. My question does it overwrite into array1 as it is declared below array or it can write into any other location.
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Sep 9, 2014
I am trying to get the index of a value by inputting the value:
For example if i have
int arr[5]={22, 85, 58, 78, 69};
indexOfItem(arr, 78);
and have the output be:
the index of the item is: 3
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Jan 8, 2015
I am new in c programming and my teacher gives me home word to do. the home work is to create dynamic matrix that check if i have same number in row or in column. for example the matrix
1 2 3
2 3 1
3 1 2
is legal matrix and this matrix is illegal
1 3 3
2 1 3
3 2 1
I created the matrix and sent it to function but there I don't know how build the code.
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Oct 25, 2013
Code:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
int main()
#define rows 9
#define columns 9
[code]....
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Jan 23, 2013
Here is the draft of code that i designed. My task is here to create the matrix, allocate the dynamic memory for it, and to find the biggest sum of the column elements that is located over main diagonal. So main points is correct memory allocation, and the sorting to the biggest sum of column higher than diagonal.
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Jul 20, 2014
I have two doubts in the following code,the doubts are marked..PLs note that the following code is correct .This is a program to read 2d array using pointer ()i.e Dynamic array ,to calculate its rowsum and column sum and display this array along row sum and column sum.
#include<iostream.h>
#include<conio.h>
void main() {
clrscr();
int *Val,*Rsum,*Csum;
int MaxR,MaxC,i,j;
[Code] .....
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Mar 21, 2014
Basically when I type in different widths and heights for the col and rows, the buttons that make up the width get cut off. Something is messed up but I'm not sure what!
InitializeComponent();
int _col = int.Parse(cols);
int _row = int.Parse(rows);
int width = groupBox1.Width;
int height = groupBox1.Height;
int bW = width / _col;
int bH = height / _row;
[Code] ....
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Apr 30, 2014
i am using c# asp.net'
var db = Simple.Data.Database.OpenNamedConnection("sqlConn");
DataTable dt = gridRatingEventHistory.DataSource as DataTable;
string dateString = DateTime.Now.ToShortDateString();
dt.Columns.Add(dateString);
gridRatingEventHistory.Columns.Add(new GridBoundColumn {
[Code] .....
if you look at 1st image 1 you can see what it looks like -- when i hit the button i just want a blank column to show next to the last column however i get image 2 results how can i fix this.
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Dec 16, 2014
I am getting a excel sheet in datatable with some column "Program,Response,T,Timein".There is 3 condition for filtering datatable.
1.fetch unique program.so i got dis.
2.T not equal to "B". I also got dis.
3.Response should be > 5000. I also got dis data in datatable.
Now in Datatable I have same program name presented 3 times with response>5000 nd T<>B.Now I want to fetch only the maximum respnse among 3 of them. so every time my program should be change and for that program I need to pickup max response so How can I do this? for the same I put two loops
for (int i = 0; i < DataFilter.Rows.Count; i++) {
DataRow dr = DataFilter.Rows[i];
DataView dv2 = new DataView();
[Code]....
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Mar 1, 2015
I want to get the row and column of an Control that has been added to a TableLayoutPanel. This is what i've got so far:
I add the control at the begin in the Form_Load event:
this.tableLayoutPanel1.Controls.Add(this.userControl1, 1, 1);
private void tableLayoutPanel_Content_ControlAdded(object sender, ControlEventArgs e) {
int column = tableLayoutPanel1.GetPositionFromControl(e.Control).Column;
int row = tableLayoutPanel1.GetPositionFromControl(e.Control).Row;
if(row == 1 && column == 1) // Later i want to check it like this
}
The problem is, that the column and row are always 0, but why?
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