Whst is the problem in this code y it is not running

#1

public class DelhiOddEven {

public static void main(String[] args) {
	// TODO Auto-generated method stub
	Scanner scn = new Scanner(System.in);
	int n = scn.nextInt();
	int i = 1;
	while (i <= n) {
		int a = scn.nextInt();
		int q = 0;
		int s = 0;
		while (a != 0) {
			int m = a % 10;
			s = s + m;
			q += 1;
			a = a / 10;
		}
		// System.out.println(s);
		if (s % 2 == 0 && s % 4 == 0 || s % 2 == 1 && s % 3 == 0)
			System.out.println("Yes");

		else
			System.out.println("No");

		i += 1;
	}

}

}

#2
  • You have given a number and in that number, the digits which are even should have sum divisible by 4 or the sum of digits which are odd should be divisible by the 3, Only then you can say yes otherwise you will say no.
  • Declare two variables to store the sum of even numbers and odd numbers.
  • Extract digit one by one ( by % 10).

    1. Check if the number is even or odd.

    2. If even add the number in the variable storing even sum.

  1. Othewise add it in the variable storing odd sum.
  • After the loop, Check if the even sum is divisible by 4. ya the odd sum is divisible by 3.

    1. If True, print Yes.

    2. otherwise print No.

#3

import java.util.*;

public class Main {
public static void main(String[] args) {
Scanner scn = new Scanner(System.in);
int n = scn.nextInt();
int i = 1;
while (i <= n) {
int a = scn.nextInt();
int q = 0;
int s = 0;
while (a != 0) {
int m = a % 10;
if(m%2==0)
s = s + m;
else
q += m;
a = a / 10;
}

		//System.out.println(s);
		if (s % 4 == 0 || q % 3 == 0)
			System.out.println("Yes");
		else
			System.out.println("No");
		i += 1;
	}
}

}