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Cod sursa(job #614594)
#include<iostream>
#include<fstream>
using namespace std;
int main(void)
{
long long a,b,n,sum,i,j,v[1000001];
ifstream f("multimi2.in");
ofstream g("multimi2.out");
f>>n;
sum=n*(n+1)/2;
a=sum/2;
b=sum-a;
g<<b-a<<"\n";
j=n;
while (b-j>=0)
{
v[j]=1;
b=b-j;
j--;
v[0]++;
}
if (b>0)
{
v[b]=1;
v[0]++;
}
g<<v[0]<<"\n";
for (i=1;i<=n;i++)
if (v[i]==1)
g<<i<<" ";
g<<"\n"<<n-v[0]<<"\n";
for (i=1;i<=n;i++)
if (v[i]==0)
g<<i<<" ";
}