@[whoam](/user/549418) 题解区第一篇
by qwq___qaq @ 2022-12-13 23:50:49
@[whoam](/user/549418) 这个字符串哈希可以用 `unordered_map` 实现
by 5k_sync_closer @ 2022-12-14 06:57:24
@[5k_sync_closer](/user/388651) 好的 谢谢指点
by whoam @ 2022-12-14 23:17:39
@[whoam](/user/549418)
map映射
by dashan @ 2023-01-27 13:15:34
暴力优化
```cpp
for(int i=1;i<=n;i++){
string s;
cin>>s;
for(int j=0;j<s.size();j++){
int p=s[j]-'A'+1;
sum[i][p]++;
}
}
for(int i=1;i<=n;i++){
if(flag[i]) continue;
flag[i]=1;
for(int j=1;j<=n;j++){
if(i==j) continue;
int fl=0;
for(int k=1;k<=26;k++){
if(sum[i][k]!=sum[j][k]){
fl=1;
break;
}
}
if(!fl) flag[j]=1;
}
ans++;
}
return 0;
}
```
by _7Mr @ 2023-07-07 11:51:26
n = int(input())
result = set()
for i in range(n):
result.add("".join(sorted(input())))
print(len(result),end="")
by mm477706421 @ 2023-12-04 14:30:37