NOI2014起床困难综合症

拆位，然后贪心

然而看着的我一脸懵逼的我看着我的50= = 然后借鉴了一下POPO姐的代码，然而还是50= =，最后发现是忘记加return这个词= =

#include
#include
#include
#include
#include
#include
#include
#define get(p,i) p>>(i-1)&1
#define fo(i,a,b) for(int i=a;i<=b;i++)
#define down(i,a,b) for(int i=a;i>=b;i--)
using namespace std;
#define N 100005
int c[N],a[N];char ch[10];
int n,m;

void init()
{
	scanf("%d%d",&n,&m);
	fo(i,1,n)
	{
		scanf("%s%d",ch,&a[i]);
		if(ch[0]=='A')c[i]=1;
		if(ch[0]=='O')c[i]=2;
		if(ch[0]=='X')c[i]=3;
	}
}

int calc(int x,int op,int y)
{
	if(op==1)return x&y;
	if(op==2)return x|y;
	if(op==3)return x^y;
}
int cross(int x)
{
	int ret=x;
	fo(i,1,n)ret=calc(ret,c[i],a[i]);
	return ret;
}

void work()
{
	int ans=0,now=1;
	for(;now<=m;now<<=1);
	for(now>>=1;now;now>>=1)
	{
		if(cross(0)&now)continue;
		if((cross(now)&now)&&ans+now<=m)ans+=now;
	}
	cout<