Submission #1088390

#	Time	Username	Problem	Language	Result	Execution time	Memory
1088390		whtth	Anagramistica (COCI21_anagramistica)	C++14	0 / 110	1 ms	348 KiB

anagramistica

#include <bits/stdc++.h>
using namespace std;
long long n, k, f[2000010], cnt=0, mod=1e9+7, dp[2010], ans=0;
string S[2010];
unordered_map<string, long long> thutu;
long long modpow(int a, int b){
    int s=a;
    for(int i=1;i<=b;i++){
        a*=s;
        a%=mod;
    }
    return a;
}
int main(){
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    //freopen("anagramistica.inp", "r", stdin);
    //freopen("anagramistica.out", "w", stdout);
    cin>>n>>k;
    for(int i=1;i<=n;i++){
        cin>>S[i];
        sort(S[i].begin(), S[i].end());
    }
    for(int i=1;i<=n;i++){
        thutu[S[i]]++;
    }
    for(auto x : thutu){
        f[x.second*(x.second-1)/2]++;
    }
    if(k==0){
        long long ko=modpow(2, f[0]);
        cout<<ko;
    }
    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 30
• Subtask 3: 0 / 70