hdu 3752 Is the one been second-killed first?

题意：每个小孩要拿到偶数克蛋糕，不一定每个小孩拿到的一样多

#include<iostream>
using namespace std;

int main()
{
	int n;
	scanf("%d", &n);
	while(n--)
	{
		int a, b;
		scanf("%d%d", &a, &b);
		if(a % 2 == 1|| b > a / 2)
			printf("NO\n");
		else
			printf("YES\n");
	}
	return 0;
}