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prof.cpp
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#include<iostream>
#include<math.h>
using namespace std;
const int n=5;
void bin(int a,int b[])
{
int i;
if(a>0)
b[0]=0;
else
{
b[0]=1;
a=-a;
}
for(i=n-1;i>0;i--)
{
b[i]=a%2;
a=a/2;
}
if(b[0]==1)
{
i=n-1;
while(b[i]!=1)
i--;
for(i=--i;i>0;i--)
{
if(b[i]==1)
b[i]=0;
else
b[i]=1;
}
}
}
void un2s(int a[],int b[])
{
int i=n-1;
if(a[0]==1)
{
while(b[i]!=1&&i>=0)
i--;
if(i!=-1)
{
for(i=i-1;i>=0;i--)
{
if(b[i]==1)
b[i]=0;
else
b[i]=1;
}
for(i=n-1;i>=0;i--)
{
if(a[i]==1)
a[i]=0;
else
a[i]=1;
}
}
else
{
while(a[i]!=1||i>=0)
i--;
for(i=i-1;i>=0;i--)
{
if(a[i]==1)
a[i]=0;
else
a[i]=1;
}
}
}
}
void sum(int a[],int b[])
{
int i=n-1,c=0;
while(i>=0)
{
if(a[i]!=b[i])
{
a[i]=1-c;
}
else
{
a[i]=c;
c=b[i];
}
i--;
}
}
int main()
{
int x,y,i,sc=n,q,Q=0,o=0,c=1;
int br[n],qr[n],ac[n]={0,0,0,0,0},Br[n];
cin>>x>>y;
bin(x,br);
bin(y,qr);
i=n-1;
while(br[i]!=1)
{
Br[i]=br[i];
i--;
}
Br[i]=br[i];
for(i=--i;i>=0;i--)
{
if(br[i]==1)
Br[i]=0;
else
Br[i]=1;
}
while(sc>0)
{
sc--;
q=qr[n-1];
if(Q!=q)
{
if(Q==0)
sum(ac,Br);
else
sum(ac,br);
}
Q=qr[n-1];
for(i=n-1;i>0;i--)
qr[i]=qr[i-1];
qr[0]=ac[n-1];
for(i=n-1;i>0;i--)
ac[i]=ac[i-1];
q=qr[n-1];
}
if(ac[0]==1)
c=-1;
un2s(ac,qr);
for(i=1;i<n;i++)
o+=ac[i]*pow(2,(n+n-1-i));
for(i=0;i<n;i++)
o+=qr[i]*pow(2,(n-1-i));
o*=c;
cout<<o;
return 0;
}