Submission #483709

#	Time	Username	Problem	Language	Result	Execution time	Memory
483709		sam571128	Anagramistica (COCI21_anagramistica)	C++17	10 / 110	30 ms	332 KiB

anagramistica

#include <bits/stdc++.h>

#define int long long
#define fastio ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

using namespace std;

signed main(){
    fastio
    int n,k;
    cin >> n >> k;

    vector<string> v;
    for(int i = 0;i < n;i++){
        string s;
        cin >> s;
        sort(s.begin(),s.end());
        v.push_back(s);
    }

    int ans = 0;
    for(int i = 0;i < (1<<n);i++){
        map<string,int> m;
        for(int j = 0;j < n;j++){
            if(i&(1<<j)) m[v[j]]++;
        }

        int tmp = 0;
        for(auto [a,b] : m){
            tmp += b*(b-1)/2;
        }

        if(tmp==k) ans++;
    }
    cout << ans << "\n";
}

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