oj.uz

Submission #709193

# Submission time Handle Problem Language Result Execution time Memory
709193 2023-03-13T07:45:58 Z maomao90 Password (RMI18_password) C++17
30 / 100
 407 ms 464 KB 
// Hallelujah, praise the one who set me free
// Hallelujah, death has lost its grip on me
// You have broken every chain, There's salvation in your name
// Jesus Christ, my living hope
#include <bits/stdc++.h> 
using namespace std;

#define REP(i, s, e) for (int i = (s); i < (e); i++)
#define RREP(i, s, e) for (int i = (s); i >= (e); i--)
template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}
typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
#define ALL(_a) _a.begin(), _a.end()
#define SZ(_a) (int) _a.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef vector<iii> viii;

#ifndef DEBUG
#define cerr if (0) cerr
#endif

const int INF = 1000000005;
const ll LINF = 1000000000000000005ll;
const int MAXN = 5005;

int query(string str);

int occ[30];
int pos[30][MAXN];
string guess(int n, int s) {
    REP (c, 0, s) {
        string str(n, 'a' + c);
        occ[c] = query(str);
    }
    REP (i, 0, s) {
        REP (j, 0, n) {
            pos[i][j] = 0;
        }
    }
    REP (l, 0, s) {
        REP (r, 0, s) {
            if (l == r) {
                continue;
            }
            int ptr = occ[r];
            auto make = [&] (int x, int y) {
                string s = "";
                REP (i, 0, x) {
                    s += l + 'a';
                }
                REP (i, 0, y) {
                    s += r + 'a';
                }
                return s;
            };
            REP (i, 1, occ[l] + 1) {
                while (ptr >= 1 && query(make(i, ptr)) != i + ptr) {
                    ptr--;
                }
                pos[l][i - 1] += occ[r] - ptr;
            }
        }
    }
    string ans(n, '?');
    REP (c, 0, s) {
        REP (i, 0, occ[c]) {
            ans[pos[c][i] + i] = 'a' + c;
        }
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 336 KB Guessed the password with 226 queries.
2 Correct 5 ms 336 KB Guessed the password with 530 queries.

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Guessed the password with 95 queries.
2 Correct 5 ms 208 KB Guessed the password with 262 queries.
3 Correct 3 ms 208 KB Guessed the password with 336 queries.
4 Correct 6 ms 208 KB Guessed the password with 581 queries.

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 210 ms 336 KB Guessed the password with 19205 queries.
2 Correct 327 ms 336 KB Guessed the password with 34674 queries.
3 Correct 407 ms 464 KB Guessed the password with 43495 queries.
4 Incorrect 405 ms 464 KB Could not guess the password with 50000 queries.
5 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 336 KB Guessed the password with 226 queries.
2 Correct 5 ms 336 KB Guessed the password with 530 queries.
3 Correct 1 ms 208 KB Guessed the password with 95 queries.
4 Correct 5 ms 208 KB Guessed the password with 262 queries.
5 Correct 3 ms 208 KB Guessed the password with 336 queries.
6 Correct 6 ms 208 KB Guessed the password with 581 queries.
7 Correct 210 ms 336 KB Guessed the password with 19205 queries.
8 Correct 327 ms 336 KB Guessed the password with 34674 queries.
9 Correct 407 ms 464 KB Guessed the password with 43495 queries.
10 Incorrect 405 ms 464 KB Could not guess the password with 50000 queries.
11 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 336 KB Guessed the password with 226 queries.
2 Correct 5 ms 336 KB Guessed the password with 530 queries.
3 Correct 1 ms 208 KB Guessed the password with 95 queries.
4 Correct 5 ms 208 KB Guessed the password with 262 queries.
5 Correct 3 ms 208 KB Guessed the password with 336 queries.
6 Correct 6 ms 208 KB Guessed the password with 581 queries.
7 Correct 210 ms 336 KB Guessed the password with 19205 queries.
8 Correct 327 ms 336 KB Guessed the password with 34674 queries.
9 Correct 407 ms 464 KB Guessed the password with 43495 queries.
10 Incorrect 405 ms 464 KB Could not guess the password with 50000 queries.
11 Halted 0 ms 0 KB -