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Cod sursa(job #60894)
#include<stdio.h>
long int a[129][129][129],nr[129][129][129],i,j,k,m,n,x[100001],y[100001],z[100001],sol;
int main()
{ FILE *f,*g;
f=fopen("puteri.in","r");
g=fopen("puteri.out","w");
a[0][0][0]=-1;
for(i=0;i<=128;i++)
for(j=i;j<=128;j++)
for(k=j;k<=128;k++)
if(!a[i][j][k])
{ a[i][j][k]=-1;
a[i][k][j]=-1;
a[j][i][k]=-1;
a[j][k][i]=-1;
a[k][i][j]=-1;
a[k][j][i]=-1;
for(m=2;m*k<=128;m++)
{ a[m*i][m*j][m*k]=1;
a[m*i][m*k][m*j]=1;
a[m*j][m*i][m*k]=1;
a[m*j][m*k][m*i]=1;
a[m*k][m*i][m*j]=1;
a[m*k][m*j][m*i]=1;
}
}
fscanf(f,"%ld",&n);
fscanf(f,"%ld%ld%ld",&x[1],&y[1],&z[1]);
for(k=2;k<=n;k++)
{ fscanf(f,"%ld%ld%ld",&x[k],&y[k],&z[k]);
for(j=1;j<k;j++)
nr[x[k]+x[j]][y[k]+y[j]][z[k]+z[j]]++;
}
for(i=0;i<=128;i++)
for(j=i;j<=128;j++)
for(k=j;k<=128;k++)
if(!(a[i][j][k]+1))
{ sol+=nr[i][j][k];
sol+=nr[i][k][j];
sol+=nr[j][i][k];
sol+=nr[j][k][i];
sol+=nr[k][i][j];
sol+=nr[k][j][i];
}
fprintf(g,"%ld\n",sol);
fcloseall();
return 0;
}