How to print even numbers in an array?

Question

#include<stdio.h>
int main()
{
int a[20],i;
printf("enter array elemty");
for(i=0;i<=20;i++)
{
scanf("%d",&a[i]);
}
if(a[i]/2==0)
{
for(i=0;i<=20;i++)
{
printf("%d",a[i]);
}}
Return 0;
}

Answer 1

Navneet
It is needed to print 20 also as even number then start loops with 1 and have same condition. It will need to change all index of array a[ ].

Array indexes with a[ I ] to a[ I - 1]
This change should solve the required.

Answer 2

main()
{
int i;
int a[100]={10,20,30,23,44,80};
for(i=0;i<a[i];i++)
if(a[i]%2==0)
printf("%d\n",a[i]);
}

Answer 3

Dhananjay Patel
I've done soo but since then output is not correct

Answer 4

~ swim ~

If even numbers between 0 .. N needs to be stored in array array size need not to be N.
It requires more information.

At First look it seems program tries to get number from console using scanf.

1. Problem statement is read even numbers from 0 .. N including N.

Or

2. Find from N = 20 numbers all even numbers. It requires another variable to keep track of only even numbers and add them to array.

Answer 5

Navneet

It need to change only statement if (a[I]/2 == 0) {
...
}
By following statement
if (a[I]%2 == 0) {
...
}
Instead of division operator use modulus operator
To find even number remainder should be 0 (Zero)

Answer 6

Vamsi
How can I use colon after if statement

Answer 7

Vamsi
I've not learned python till now soo I don't have any idea about that

Answer 8

Navneet

Attachment is code to find even numbers from input it prints all even number in array
It first read input number count after that it reads all numbers after that it finds all even numbers and print on output

https://code.sololearn.com/cWOpU8cc83cb/?ref=app

Answer 9

Navneet

Program written is now error free and non-prone to crash. It good work. For better programming use indentations properly so program will be more readable.

Form current program learn it will take 19 number form input. Make change so that it can change input from 19 to 20.

Hint. Array index starts from 0 onwards

Answer 10

/*how to rpint even numners in an array*/

#include<stdio.h>
int main()
{
int n;
printf("enter number of elements in an array");
scanf("%d",&n);
int a[n];

printf("enter array elements ");
for(int i=0;i<n;i++)
{
scanf("%d",&a[i]);
}

for(int i=0;i<n;i++)
{
if(a[i]%2==0)
{
printf("%d",a[i]);
}
}

return 0;
}

Answer 11

Using the output statement of that language 😂

Answer 12

Arda Atıcı ok thanks for suggesting...I'll definitely try it

Answer 13

VAMSI ok thanks

Answer 14

Oh yah! I've just lost that ...thanks alot

Answer 15

As I want to print even number upto 20 and 20is also an even num

Answer 16

Swim
Okkk .... But can you just please make this program and show me the output.

Answer 17

Okk

Answer 18

Dhananjay
I've make program ,it was error free and compiled also but the output is not correct😔,I don't know why🤔.
#include<stdio.h>
#include<conio.h>
int main()
{
int a[20],i;
for(i=1;i<=20;i++)
{
if(a[i]%2==0)
{
printf("%d",a[i]);
}
}
return 0;
}
Just see.....

Answer 19

Navneet here is the code you needed hope it helps you. just run this and if u want u can change range from 20 to any number in the for loop.
https://code.sololearn.com/c323do61U90z/?ref=app

Answer 20

Varun N
Thanks for your help but the my question is how to print even numbers in an array ,I'm not able to print then in array....simply I can also print.