Submission #664277

#	Time	Username	Problem	Language	Result	Execution time	Memory
664277		Nursik	Password (RMI18_password)	C++14	50 / 100	1120 ms	484 KiB

password

#include <stdio.h>
 
#include <algorithm>
#include <bitset>
#include <cassert>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <list>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
 
using namespace std;
 
#define ll long long
#define pb push_back
 
 
int is[30];
int query(string str);
string guess(int n, int s){
    string ans = "";
    int mx = 0, c = -1;
    for (int i = 0; i < s; ++i){
        string lol = "";
        char ch = 'a';
        ch += i;
        for (int j = 1; j <= n; ++j){
            lol += ch;
        }
        int kek = query(lol);
        if (kek > mx){
            mx = kek;
            c = i;
        }
        is[i] = kek;
    }
    for (int j = 1; j <= mx; ++j){
        char ch = 'a';
        ch += c;
        ans += ch;
    }
    is[c] = 0;
    for (int i = 0; i < s; ++i){
        if (is[i] == 0){
            continue;
        }
        while (is[i] > 0){
            char ch = 'a';
            ch += i;
            int len = (int)ans.size();
            int len2 = len;
            string nans = "", pref = "";
            for (int j = 0; j <= len; ++j){
                string suff = "";
                for (int k = j; k < len; ++k){
                    suff += ans[k];
                }
                while (is[i] > 0){
                    string q = nans;
                    q += ch;
                    q += suff;
                    if ((int)q.size() > n)
                        break;
                    int kek = query(q);
                    if (kek == len2 + 1){
                        nans += ch;
                        is[i] -= 1;
                        len2 += 1;
                    }
                    else{
                        break;
                    }
                }
                if (j < len){
                    nans += ans[j];
                    pref += ans[j];
                }
            }
            ans = nans;
        }
    }
    return ans;
}

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