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Cod sursa(job #198402)
#include<fstream>
#include<algorithm>
#include<cstring>
using namespace std;
char A[36009][20];
int O[36009];
int n,i;
int comp(int a, int b){
return (strcmp(A[a],A[b])<0);
}
int main(){
ifstream f("restante.in");
f>>n;
for(i=0;i<n;i++){
f>>A[i];
sort(A[i], A[i]+strlen(A[i]));
}
f.close();
for(i=0;i<n;i++)
O[i]=i;
sort(O,O+n,comp);
int c=0;
for(i=1;i<n;i++)
if(strcmp(A[O[i]],A[O[i-1]])!=0)
c++;
ofstream g("restante.out");
g<<c<<'\n';
g.close();
return 0;
}