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C LANG Using array to read in colums as well as rows


By : Arun Kumar Meena
Date : September 24 2020, 05:00 AM
hop of those help? You don't need an array to store the numbers. Just read one number at a time, comparing against the current max and min numbers.
In pseudo-ish code something like
code :
int current_min = INT_MAX;
int current_max = INT_MIN;

while (read_one_number(&number))
{
    if (number < current_min)
        current_min = number;

    if (number > current_max)
        current_max = number;
}


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How Can I Read a lot of Colums as a Data in a File and Store Them in a Array Correctly in Perl


By : CRICHARD12
Date : March 29 2020, 07:55 AM
This might help you UPDATE Changed the compare line to if ( $hour1 == $hour2 && $ne1 eq $ne2 ) and moved my $i = ... inside the if statement.
If I understand the 'type' variable correctly, (CC000 => 000), then the changed code here might do what you need.
code :
#!/usr/bin/perl
use strict;
use warnings;

my $input_file = 'file1';
my $s1_threshold="file2";

open my $fh, '<', $input_file
    or die "$0: open of $input_file failed, error: $! \n";

my ($id, $date, $time1, undef, undef, $ne1, @cc) = split ' ', <$fh>;

close $fh or die "$0: close of $input_file failed, error: $! \n";

# get hour from time1
my $hour1 = substr $time1, 0, 2;

open my $fh2, '<', $s1_threshold
    or die "$0: open pf $s1_threshold failed, error: $! \n";

while (<$fh2>) {
    my ($ne2, $cc, $hour2, $threshold) = split;

    if ( $hour1 == $hour2 && $ne1 eq $ne2 ) {
        my $i = 0 + substr $cc, 2;

        if ( $cc[$i] > $threshold )
        {
            print("$cc[$i]\n");
            print ("match\n");
         }
         else
         {
            print("not match\n");
         }
    }
}
close $fh2 or die "$0: close pf $s1_threshold failed, error: $! \n";

Numpy function for iteration over an array with access to rows & colums


By : Ganesh Iyer
Date : March 29 2020, 07:55 AM
should help you out Look's like that you are looking for numpy.nditer. Here is the example of code:
code :
import numpy as np
array = np.array(
  [
    [ 0.,  1.,  2.,  3.,  4.,  5.,  6.,  7.],
    [ 8.,  9.,  10.,  11.,  12.,  13.,  14.,  15.],
    [ 16.,  17.,  18.,  19.,  20.,  21.,  22.,  23.]
  ]
)

it = np.nditer(array, flags=['multi_index'])
while not it.finished:
  print(it[0], it.multi_index)
  it.iternext()
0.0 (0, 0)
1.0 (0, 1)
2.0 (0, 2)
3.0 (0, 3)
4.0 (0, 4)
5.0 (0, 5)
6.0 (0, 6)
7.0 (0, 7)
8.0 (1, 0)
9.0 (1, 1)
10.0 (1, 2)
11.0 (1, 3)
12.0 (1, 4)
13.0 (1, 5)
14.0 (1, 6)
15.0 (1, 7)
16.0 (2, 0)
17.0 (2, 1)
18.0 (2, 2)
19.0 (2, 3)
20.0 (2, 4)
21.0 (2, 5)
22.0 (2, 6)
23.0 (2, 7)

Array sum rows and colums of an array


By : Paolo Maria Franzoni
Date : March 29 2020, 07:55 AM
hope this fix your issue , Try this:
code :
public class Main {
    public static void main(String[] args) {

         int n = Integer.parseInt(JOptionPane.showInputDialog(null, "Rows"));
         int m = Integer.parseInt(JOptionPane.showInputDialog(null, "Columns"));

        int[][] a = new int[n][m];
        int[] b = new int[n];
        int[] c = new int[m];

        for (int i = 0; i < a.length; i++) {
            for (int j = 0; j < a[i].length; j++) {

                a[i][j] = Integer.parseInt( JOptionPane.showInputDialog(null, "Type" + "an int. A[" + i + "]" + "[" + j + "] = "));

                b[i] += a[i][j];
                c[j] += a[i][j];
            }

        }

        // USED FOR PRINTING
        //  -------------------------
        for (int i = 0; i < b.length; i++) {
            System.out.println("Sum Row " + (i + 1) + " is " + b[i]);
        }

        for (int i = 0; i < c.length; i++) {
            System.out.println("Sum Column " + (i + 1) + " is " + c[i]);
        }
        // -------------------------
    }
}
0   1   2   3   4   
5   6   7   8   9   
10  11  12  13  14  
15  16  17  18  19
Sum Row 1 is 10
Sum Row 2 is 35
Sum Row 3 is 60
Sum Row 4 is 85
Sum Column 1 is 30
Sum Column 2 is 34
Sum Column 3 is 38
Sum Column 4 is 42
Sum Column 5 is 46

How to declare array with 3 colums and 4 rows


By : Mariusz Balewski
Date : March 29 2020, 07:55 AM
Hope that helps How can I declare array that has 4 rows and 3 columns. 2 of the columns is int and the other column is a string.help! , I'll give you a start, make a class:
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