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Cod sursa(job #173009)
#include<stdio.h>
int main()
{
freopen("restante.in","r",stdin);
freopen("restante.out","w",stdout);
int n,i,nr,aux,nrr[3600],j,q,k,ok,nrc;
char c,a[3601][17];
scanf("%d",&n);
c=fgetc(stdin);
for(i=1;i<=n;i++)
{nr=0;
c=fgetc(stdin);
nr++;
a[i][nr]=c;
while(c!='\n')
{c=fgetc(stdin);
nr++;
a[i][nr]=c;
}
nrr[i]=nr-1;
}
for(i=1;i<=n;i++)
for(j=1;j<=nrr[i];j++)
for(k=j+1;k<=nrr[i];k++)
if(a[i][k]<a[i][j])
{aux=a[i][k];
a[i][k]=a[i][j];
a[i][j]=aux;
}
nrc=0;
for(i=1;i<n;i++)
{for(j=i+1;j<=n;j++)
{ok=0;
if(a[j][1]==a[i][1])
{for(k=1;k<=nrr[i];k++)
{ok=0;
for(q=1;q<=nrr[j];q++)
if(a[i][k]==a[j][q]){ok=1;break;}
if(ok==0) break;
}
}
if(ok==1){nrr[j]=0; break;}
}
if(ok==1)nrr[i]=0;
}
for(i=1;i<=n;i++)
if(nrr[i]!=0) nrc++;
printf("%d",nrc);
return 0;
}