+ 1

How can I print even numbers from an array?

For this Int arr[2][3] = {{1,2,3},{4,5,6}}; for (int first = 0; first < 2; first++) { for (int second = 0; second < 3; second++) cout << x[first][second] << " "; cout << endl; }

10th Dec 2018, 9:51 AM
Saad Saleem
Saad Saleem - avatar
9 Antworten
+ 17
//here are some small errors : ● in declaration & initialization of array arr , datatype given will be int [not Int] ● in cout , array name is arr [not x] //for checking even number : ● U can make use of %2==0 (checking remainder left after dividing by 2) //here is a rough code : int arr[2][3] = {{1,2,3},{4,5,6}}; for (int first = 0; first < 2; first++) { for (int second = 0; second < 3; second++) if(arr[first][second]%2==0) cout << arr[first][second] << " "; // cout << endl; }
10th Dec 2018, 10:53 AM
Gaurav Agrawal
Gaurav Agrawal - avatar
+ 14
Hy again ☺ ● your code given in question is correct for that , just remove the small mistakes identified & writted in my previous comment 👍 //here is rough code : int arr[2][3] = {{1,2,3},{4,5,6}}; for (int first = 0; first < 2; first++) { for (int second = 0; second < 3; second++) cout << arr[first][second] << " "; cout << endl; }
10th Dec 2018, 11:19 AM
Gaurav Agrawal
Gaurav Agrawal - avatar
+ 1
Thanks sir it's working
10th Dec 2018, 10:56 AM
Saad Saleem
Saad Saleem - avatar
+ 1
So far as I'm seeing this it might be much better to use a 1 dimensional array rather than a 2D one, but if you do need to use that setup then within the inside for loop include an if statement to check whether the modulo of that number with 2 is equal to 0, if that condition is true then output that number, so in practice " if(x[first][second] % 2 == 0) cout << x[first][second] << "\n"; " I would strongly suggest however that you use a 1D array as it is much easier to iterate through and manage.
10th Dec 2018, 10:58 AM
Edwin Rybarczyk
+ 1
I want to display number like that 1 2 3 4 5 6 How can I do?
10th Dec 2018, 11:14 AM
Saad Saleem
Saad Saleem - avatar
+ 1
Hi Saad Mughal To print number like this: 1 2 3 4 5 6 you have to put a new line in the outer for loop: int arr[2][3] = {{1,2,3},{4,5,6}}; for (int first = 0; first < 2; first++) { for (int second = 0; second < 3; second++) { if(arr[first][second]%2 == 0) cout << arr[first][second] << " "; } cout << endl; }
10th Dec 2018, 11:55 AM
Sekiro
Sekiro - avatar
+ 1
Saad Mughal You’re welcome! happy coding ☺️
10th Dec 2018, 12:19 PM
Sekiro
Sekiro - avatar
0
I have an assignment to create 2D array
10th Dec 2018, 11:13 AM
Saad Saleem
Saad Saleem - avatar
0
Sekiro thanks for helping it's working https://code.sololearn.com/cn7yZusQJd3q/?ref=app
10th Dec 2018, 12:05 PM
Saad Saleem
Saad Saleem - avatar