Codeforces Round #760 F

补题

#include 
#define ll long long
using namespace std;

ll x,y,z;
int x_,y_,z_;
int a[65],b[65],c[65];

int main()
{
	ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	
	cin >> x >> y;
	if(x==y) cout << "YES";
	else if(y%2==0) cout << "NO";
	else
	{
		z = x;
		while(z%2==0)
		{
			z/=2;
		}
		while(x)
		{
			a[x_++] = x%2;
			x /=2;
		}
		while(y)
		{
			b[y_++] = y%2;
			y /=2;
		}
		while(z)
		{
			c[z_++] = z%2;
			z /=2;
		}
		bool flag = false;
		for(int i=0;i<=y_ - x_;i++)
		{
			bool flag2 = true;
			for(int j=0;j