A. Aramic script
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output
In Aramic language words can only represent objects.
Words in Aramic have special properties:
- A word is a root if it does not contain the same letter more than once.
- A root and all its permutations represent the same object.
- The root x
- in a way that each letter appears once. For example, the root of "aaaa", "aa", "aaa" is "a", the root of "aabb", "bab", "baabb", "ab" is "ab".
- Any word in Aramic represents the same object as its root.
You have an ancient script in Aramic. What is the number of different objects mentioned in the script?
Input
The first line contains one integer n
) — the number of words in the script.
The second line contains n
words s1,s2,…,sn — the script itself. The length of each string does not exceed 103#include<bits/stdc++.h> using namespace std; #define ll long long #define all(x) begin(x),end(x) ll rd(){ ll x=0,f=1;char ch=getchar(); while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();} while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();} return x*f; } int main(){ freopen("in.txt","r",stdin); int n=rd(); set<set<char> >lol; for(int i=0;i<n;i++){ string s; cin>>s; lol.insert(set<char>(all(s))); } cout<<lol.size()<<endl; }