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Cod sursa(job #25223)
#include<stdio.h>
int a[10001][4],n,i,z,nr,j,max,x[4];
int main(){
freopen("puteri.in","r",stdin);
freopen("puteri.out","w",stdout);
scanf("%d",&n);
for(i=1;i<=n;i++)
scanf("%d%d%d",&a[i][1],&a[i][2],&a[i][3]);
for(i=1;i<n;i++){
for(j=i+1;j<=n;j++)
{
z=0;
max=0;
x[1]=a[i][1]+a[j][1];
if(!x[1]) z++;
if(x[1]>max)
max=x[1];
x[2]=a[i][2]+a[j][2];
if(!x[2]) z++;
if(x[2]>max)
max=x[2];
x[3]=a[i][3]+a[j][3];
if(!x[3]) z++;
if(x[3]>max)
max=x[3];
if(max>1)
if(!x[1]||x[1]==max||x[1]==max/2&&z<1)
if(!x[2]||x[2]==max||x[2]==max/2&&z<1)
if(!x[3]||x[3]==max||x[3]==max/2&&z<1)
nr++;
}
}
printf("%d",nr);
return 0;
}