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Cod sursa(job #184497)
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int comp(const void *a,const void *b){
return *(char *)a-*(char *)b;
}
int cmp(const void *a, const void *b){
return strcmp((char *)a,(char *)b);
}
int lung(char *s){
int i;
for(i=0;s[i]>='a'&&s[i]<='z';++i);
return i;
}
int main () {
freopen("restante.in","r",stdin);
freopen("restante.out","w",stdout);
int i,n,j,c,nr=0;
char v[16],m[36000][16],x[16],ok;
scanf("%d\n",&n);
for(i=0;i<n;++i){
fgets(v,16,stdin);
c=lung(v);
qsort(v,c,sizeof(v[0]),comp);
for(j=0;j<c;++j)
m[i][j]=v[j];
}
qsort(m,n,sizeof(m[0]),cmp);
for(i=0;i<n;++i)
if(strcmp(x,m[i])){
ok=1;
++nr;
c=strlen(m[i]);
for(j=0;j<c;++j)
x[j]=m[i][j];
}
else
if(ok){
--nr;
ok=0;
}
printf("%d\n",nr);
return 0;
}