ramen.cpp

set<int> f(int n, int k, vector<ll> seed){
    set<int> s;
    for(int i = 0; s.size() < k; i++){
        ll tmp = 47 * seed[0] + 75 * seed[1] + 33 * seed[2] + 87 * seed[3] + 123 * seed[4];
        tmp ^= (i * 48763) * (i << 1);
        tmp %= n;
        for(int j = 3; j >= 0; j--) seed[j] = seed[j + 1];
        seed[4] = tmp;
        s.insert(tmp % n);
    }
    return s;
}