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Cod sursa(job #303836)
#include<stdio.h>
#define dim 500002
int a[dim],b[dim];
using namespace std;
int main()
{int i,m,s1,n,s2,ok,j,k;
FILE *f=fopen("multimi2.in","r"), *g=fopen("multimi2.out","w");
if(n%2==0)
{i=0; m=2; s1=0; ok=0;
fscanf(f,"%d",&n);
while(m<n)
{i++; a[i]=m; s1=s1+m;
if(ok==0) {m=m+1;ok=1;}
else {m=m+3;ok=0;}
}
j=0; m=1; ok=0; s2=0;
while(m<=n)
{j++; b[j]=m; s2=s2+m;
if(ok==0) {m=m+3;ok=1;}
else {m=m+1;ok=0;}
}
}
if(n%2==1)
{i=0; m=3; s1=0; ok=0;
fscanf(f,"%d",&n);
while(m<=n)
{i++; a[i]=m; s1=s1+m;
if(ok==0) {m=m+1;ok=1;}
else {m=m+3;ok=0;}
}
j=0; m=1; ok=0; s2=0;
while(m<n)
{j++; b[j]=m; s2=s2+m;
if(ok==0) {m=m+1;ok=1;}
else {m=m+3;ok=0;}
}
}
if(s1-s2<0) fprintf(g,"%d\n",-(s1-s2));
else fprintf(g,"%d\n",s1-s2);
fprintf(g,"%d\n",i);
for(k=1;k<=i;k++)
fprintf(g,"%d ",a[k]);
fprintf(g,"\n");
fprintf(g,"%d\n",j);
for(k=1;k<=j;k++)
fprintf(g,"%d ",b[k]);
fprintf(g,"\n");
fclose(f);
fclose(g);
return 0;
}