C++ :: How To Compare Two Cells In 2 Dimensional Array

Apr 22, 2013

how to compare two "cells" in a 2 dimensional array. Im almost sure it's something with in my logic when checking the cells.

#include<iomanip>
#include<iostream>
using namespace std;
int main()
{//variables
int row_count(0);

[code].....

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C/C++ :: Program Which Increments Value Of All Cells Of Array?

Apr 3, 2014

I'm trying to make a program who increments the value of all cells of an array but when i try to compile i get this error message:

Quote
error: incompatible types when assigning to type "int[9]" from type "int *"

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C++ :: Concatenate Two 2-dimensional Int Arrays Into One Larger 3-dimensional Array

Jul 31, 2013

How can I concatenate two 2-dimensional int arrays into one larger 3-dimensional array. This question is also valid for the 3-dimensional vectors. I know the command for the one dimensional vector as:

std::vector<int> results;
results.reserve(arr1.size() + arr2.size());
results.insert(results.end(), arr1.begin(), arr1.end());
results.insert(results.end(), arr2.begin(), arr2.end());

and for the one dimensional array as:

int * result = new int[size1 + size2];
copy(arr1, arr1 + size1, result);
copy(arr2, arr2 + size2, result + size1);

But I do not know how to make a 3-dimensional array or vector.

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C++ :: Converting One-dimensional To Two-dimensional Array

Jan 17, 2014

I had a hard question in my C++ final exam and I'm trying to solve it for the last 3 days. I haven't succeded yet! Here is the question: You have a one-dimensional array A[20]={1,2,3,4,...,20} and B[5][4] you have to assign the A array's elements to the B array but there is an order which is: B[5][4] = { { 12, 9, 11, 10 }, { 14, 7, 13, 8 }, { 16, 5, 15, 6 }, { 18, 3, 17, 4 }, { 20, 1, 19, 2 } } and there is a restriction: you can only use ONE for statement, nothing else!

#include <iostream>
#include <iomanip>
using namespace std;
int main(){
int A[20] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20 }; // define A array's elements.
int B[5][4] = { 0 }, k = 1; // define B array and k counter.

[code]....

I can't narrow the statements to one,This program works perfectly but it shouldn't be that long, we need ONLY ONE FOR statement, not two!

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C :: Assigning One Dimensional Array To Two Dimensional Array

Mar 19, 2014

is it allowed to to like this:

char a[10] = "Lizard";
char b[2][5];
b[0][0] = a[0];
b[0][1] = a[1]; etc?

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C :: How To Copy 3 Dimensional Array Into 2 Dimensional Array

Sep 2, 2013

I have a 3D array that contains 200 strings. I'm trying to copy all these strings into a 2D array. How can this be done? This is what I have so far but it isn't working correctly.

Code:
for(int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
{
dest[i][j] = source[0][i][j];
} }

The finished product would be with 100 rows, 2 columns.

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C :: Converting One Dimensional Array To Two Dimensional Array

Aug 30, 2013

convert an one dimensional array into a two dimensional array and print like a matrix.

input: 34 50 2 4 90 33 7 80 9
output: A is a 3x3 matrix
34 50 2
4 90 33
7 80 9

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C++ :: Coloring Cells In HTML Table

Apr 25, 2013

For this program i had to create an HTML with the cosine similarities. I got everything, i just need to color in the lowest and highest amount in the table, but I don't know how.

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <iomanip>
#include <string>
#include <cstdio>
using namespace std;

const int ARRAY_OF_ASCII_CODES_SIZE=256;
const int NUMBER_OF_FILES=8;

[Code] .....

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C++ :: Extract Certain Cells From Excel File?

Apr 9, 2013

how to extract certain cells for an excel file that is continuously updating. I had a look at [URL] since they provide a .h library that is useful for this situation, but could not find any code.

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C++ :: Draw 2D Grid With Blank Cells?

Mar 21, 2014

I am trying to draw a 2d grid array for a battleships game. I need the grid to have a border around each cell, how to do this. so far my code is:

#include<iostream>
using namespace std;
int main(){
int grid[5][5] = {{0}};

[Code] .....

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C++ :: Accept Integer Array And Its Size As Arguments And Assign Elements Into 2 Dimensional Array

Jan 10, 2015

Write a program using user-defined function which accepts an integer array and its size as arguments and assign the elements into a two dimensional array of integers in the following format: If the array is 1,2,3,4,5,6, the resultant 2D array is

1 2 3 4 5 6
1 2 3 4 5 0
1 2 3 4 0 0
1 2 3 0 0 0
1 2 0 0 0 0
1 0 0 0 0 0

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C++ :: How To Calculate Certain Cells Of Numbers Instead Of Entire Text File

May 24, 2014

As you can see, the code below calculates the average, sum, number of items, etc, for a list of numbers in two separate files and compares them with one another.

e.g. we will have a text file of 10 numbers;

45
65
24
26
26
36
35
100
109
433
etc...

The problem is that the code will perform calculations on all the numbers in the txt. or csv. file. This is problematic because if there is any text in the file, e.g. headings, then the calculations will not be performed. For instance, suppose that I only wanted to include rows 5-10 in the calculations, how would I specify this in my C++ code?

#include <iostream>
#include <cmath>
#include <math.h>

[Code]....

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C# :: Compare Value From Array Against A Word?

Jul 28, 2014

I'm trying to put my array value within a conditional against a word, but what can I check that

if(char[1]= "word")
{
AGEW2.Text = string.Format("{0} "whatever" {2}", split);
}

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C++ ::  Minimum Cost Path Visiting Half The Cells In A Grid?

Mar 11, 2013

I am trying solve this a problem: [URL] .....

In short:
1. Input is an N x N grid with a non-negative integer in each cell.
2. We can move from one cell to any of its adjacent cell in all four directions.
3. The 'cost' needed to move from one cell to another is the positive difference of their values.
4. We have to find the minimum cost such that we can visit atleast half of the cells with that cost;

I am not being able to think of any solution that runs in time O(N2) or better (N2 because of the size of N, any algorithm worse than it will not run within the time limit) for this problem.

So I need a hint on how to solve this problem optimally.

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C :: Assigning String To Array And Compare It?

Mar 20, 2013

I have this code :

#include <errno.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

[Code] ...

And this error occued with me I don't know why ???

myHeader.h:42:19: error: expected ")" before string constant

This code is compiled from file called myHeader.h ...

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C :: How To Compare 2D Array Rows Separately

Nov 1, 2013

I am trying to write a program that prints a 2d array to the screen and then compares each row and column to see if there is any pairs of letters. basically something that looks like this:

---------------------------
V T A Y U C B
D F W Q Q C R
D A L Y M F G
O A S S D T I

Number of horizontal pairs: 2
Number of vertical pairs: 3
---------------------------

so far this is my code below, but i dont know how to approach the comparisons

Code:

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
int main( void )

[code]....

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C :: 2 Dimensional Array Max And Min

Apr 20, 2013

I was able to get the max to work but I cant get the min. it returnning something like -125863456.

Code:
int maxx(int a[][10]);
int minn(int a[][10]);
int main(void){
int array[][10] = { { 2, 7, 6, 8, 4}, {3, 9, 1, 5, 6} };
int max1, min1;

[Code] .....

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C/C++ :: How To Put Characters To Array And Compare To File Input

Mar 17, 2015

I am trying to generate possible combinations of 4 lower case letters from aaaa - zzzz. The words will then be used against a file that contains encrypted passwords that each relate to a 4 lower case word. I have successfully generated the words. Now all i need to do is put the created words (aaaa, aaab, etc...) to an array so I can use crypt((array[i+1]), buff) and print the encrypted 4 letters that come from the file. I am having a lot of trouble complete this though.

New problems that are occurring

The main problem is in the all function and main. I'm not wanting to print the aaaa, aaab, aaac, etc to the screen but I want to put it in an char array so that i can compare each individually to each line from the file using crypt. How to put all 456976 combinations into an array, compare it to each line of code, and print the solutions to the screen.

File:

$1$6gMKIopE$I.zkP2EvrXHDmApzYoV.B.
$1$pkMKIcvE$WQfqzTNmcQr7fqsNq7K2p0
$1$0lMKIuvE$7mOnlu6RZ/cUFRBidK7PK.

Code:

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>

[Code]....

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C/C++ :: Compare Words From Text File With Array?

Apr 16, 2014

I need to compare the words from a text file with words from an array (which i got from another file) and count the instances of those words. I thought about making another array but that doesn't make sense since the text file may have a lot of words in it.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
int main() {
FILE *myFile;
char words[100][40], test;

[code]...

the test variable in the last for loop is wrong i know i was just trying something.

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C++ :: 3 Dimensional Array Printing?

Oct 25, 2013

I want to make a program that asks the user for a message and then print out a large graphic of that message. For example, if the user types "he" I want to print out

H..................H EEEEEEEEE
H..................H E
H..................H E
H..................H E
HHHHHHHHHH EEEEEEEEE
H..................H E
H..................H E
H..................H E
H..................H EEEEEEEEE

(treat the periods as spaces. I only put them there because it wouldn't separate the H's correctly.)

I will loop this to continue until the user types quit.

1. How would I set this up to store the user input characters into an array?

2. How would I print out the stored data in the shape of the word?

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C :: How To Create 8 Dimensional Array

Dec 19, 2014

Is it possible to create an 8 dimensional array in C? If no, then what can I do to improvise or let say bypass the limit?

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C++ ::  Deleting Two Dimensional Array

Oct 21, 2014

Consider the following code snippet:

GLfloat box[4][4] = {
{ x2, -y2, 0, 0 },
{ x2 + w, -y2, 1, 0 },
{ x2, -y2 - h, 0, 1 },
{ x2 + w, -y2 - h, 1, 1 },
};

Do I need to call a variant of

delete [] box;

Against this float array?

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C++ :: Two Dimensional Array With Pointer?

Apr 1, 2013

int sum(int (*ar2)[4], int size);

// I dont know what the ar2 is going on

int main(){
int data[3][4] = {{1,2,3,4},{5,6,7,8},{9,10,11,12}};
int total = sum(data, 3)
return 0;
}

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C# :: Sorting 2 Dimensional Array By Value

Jan 9, 2014

Here is what I have, I have a 1D Array being added to a 2D Array and I need to Sort them by value value 3 in the 2D Array, while maintaining a specific amount. Here is what I have so far:

public static void CheckHS(string[] HS) {
try {
GeneralData.HighScores[10, 0] = "11";
GeneralData.HighScores[10, 1] = HS[1];
GeneralData.HighScores[10, 2] = HS[2];
GeneralData.HighScores[10, 3] = HS[3];
//Need Sort Data - Bubble Sort?
}//end Try
catch (Exception ex) { MessageBox.Show(ex.Message); }
}

I am thinking bubble sorting but I remember reading about something faster. Unfortunately I can't find it on the web. The idea is that there will be always 10 Values and 4 Columns on the 2D Array. [The 11th Row being empty at the end of it.

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C/C++ :: How To Create 4 Dimensional Array

Apr 24, 2013

I want to create 4 dimensional array, in that first three dimenstional are fixed size and the final index will be on 0 to N-numbers.

E.g., double array[500][25][10][<NOT FIXED>].. So I cant create statically, because the index size are more. Also I have tried 4 dimenstional vector, but its giving 2 problem.

(i) I am storing 4th dimenstion size is more than vector[0][0][0].max_size()
(ii) Storing and Retrieving its more time in vector

So, any other solution to store large array which is 3 index is FIXED and final one is not FIXED?

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C++ :: Sparse 2 Dimensional Array?

Feb 26, 2012

i created a program which uses Sparse 2 dimensional array, but i am not sure if i did it in the right way .

this is the instruction i have:

Create a constructor and a destructor. The constructor should take as input the size of the array (consider only square NxN arrays, so only one dimension is needed) and the thickness of the ribbon. To make this precise, if supplied with a thickness parameter t, you may assume that the element [0,t] (i.e. the (t+1)-th element of the first row) is where the useless area begins on the right. Similarly, the element [t,0] is where the useless area begins on the left. The border of the useless areas moves diagonally down and to the right, i.e. it consists of [1,t+1],[2,t+2],... and [t+1,1],[t+2,2],... The above example has thickness 3.

The space for the 2-d array should be dynamically allocated and must be large enough to fit the useful data only.Create methods for random read and write access to the array as in the case of 1-d arrays.Overload the [] and << operators, as in the case of 1-d arrays. Think carefully about what the [] operator should return and how it should work. Ideally we would like this to behave in a manner similar to standard 2-d arrays (i.e. accessing elements in the normal way, like x[5][6]).

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