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Cod sursa(job #651991)
#include <fstream>
using namespace std;
ifstream f("multimi2.in");
ofstream g("multimi2.out");
int n,m1[1000007],m2[1000007],i,st,dr,n1,n2,s1,s2;
int main()
{
f>>n;
st=0;
dr=n+1;
while (st+1<dr-1)
{
i++;
st++;
dr--;
if (i%2==1)
{
n1+=2;
m1[n1]=st;
m1[n1-1]=dr;
}
else
{
n2+=2;
m2[n2]=st;
m2[n2-1]=dr;
}
}
if (n1-n2==2)
{
n2++;
m2[n2]=m1[n1];
m1[n1]=0;
n1--;
}
if (n2-n1==2)
{
n1++;
m1[n1]=m2[n2];
m2[n2]=0;
n2--;
}
if (st+1==dr-1)
{
if (i%2==0) m1[n1+1]=st+1,n1++;
else m2[n2+1]=st+1,n2++;
}
for(i=1; i<=n1; i++)
s1+=m1[i];
for(i=1; i<=n2; i++)
s2+=m2[i];
g<<max(s2-s1,s1-s2)<<'\n';
g<<n1<<'\n';
for(i=1; i<=n1; i++)
g<<m1[i]<<" ";
g<<'\n'<<n2<<'\n';
for(i=1; i<=n2; i++)
g<<m2[i]<<" ";
f.close();
g.close();
return 0;
}