Submission #1163191

#	Time	Username	Problem	Language	Result	Execution time	Memory
1163191		steveonalex	Password (RMI18_password)	C++20	0 / 100	23 ms	480 KiB

password

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef unsigned long long ull;

#define MASK(i) (1ULL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()
//
//ll max(ll a, ll b){return (a > b) ? a : b;}
//ll min(ll a, ll b){return (a < b) ? a : b;}
//ll gcd(ll a, ll b){return __gcd(a, b);}
//ll lcm(ll a, ll b){return a / gcd(a, b) * b;}
//
//ll LASTBIT(ll mask){return (mask) & (-mask);}
//int pop_cnt(ull mask){return __builtin_popcountll(mask);}
//int ctz(ull mask){return __builtin_ctzll(mask);}
//int logOf(ull mask){return 63 - __builtin_clzll(mask);}

mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
//mt19937_64 rng(1);
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}
//double rngesus_d(double l, double r){
//    double wow = (double) ((ull) rng()) / ((ull)(0-1));
//    return wow * (r - l) + l;
//}
//
//template <class T1, class T2>
//    bool maximize(T1 &a, T2 b){
//        if (a < b) {a = b; return true;}
//        return false;
//    }
//
//template <class T1, class T2>
//    bool minimize(T1 &a, T2 b){
//        if (a > b) {a = b; return true;}
//        return false;
//    }
//
//template <class T>
//    void printArr(T container, string separator = " ", string finish = "\n", ostream &out = cout){
//        for(auto item: container) out << item << separator;
//        out << finish;
//    }
//
//template <class T>
//    void remove_dup(vector<T> &a){
//        sort(ALL(a));
//        a.resize(unique(ALL(a)) - a.begin());
//    }

int query(string q);
string guess(int n, int s);



string merge(string s ,string t){
    for(int j=(int)s.size(),i=(int)t.size()-1; ~i; i--){
        while(true){
            string q = s;
            q.insert(q.begin()+j ,t[i]);
            if(query(q) == q.size()){
                s = q;
                break;
            }
            j--;
        }
    }
    return s;
}

string go(int n, int u, int v){
    if (u == v){
        string wow(n, u + 'a');
        int l = query(wow);
        string ans = string(l, u + 'a');
        return ans;
    }

    int mid = (u + v) >> 1;
    string left = go(n, u, mid), right = go(n, mid+1, v);
    if (left.size() == 0) return right;
    if (right.size() == 0) return left;

    string ans = merge(left, right);
    return ans;
}

string guess(int n, int s){
    string ans = go(n, 0, s - 1);
    return ans;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 30
• Subtask 5: 0 / 20