#include <string.h>
#define N 5000
#define A 26
int query(char *s);
static int ii[A + 1], n, nl, nr, a_; static char cc[N + 1], cc_[N + 1];
void solve(int l, int r) {
int m, h, i, j;
if (r - l == 1) {
memset(cc + ii[l], l + 'a', (ii[r] - ii[l]) * sizeof *cc);
return;
}
m = (l + r) / 2;
solve(l, m), solve(m, r);
nl = ii[m] - ii[l], nr = ii[r] - ii[m];
memcpy(cc_, cc + ii[l], nl * sizeof *cc_);
for (i = 0, j = 0; i < nl; i++)
while (j < nr) {
for (h = nl + j; h > i + j; h--)
cc_[h] = cc_[h - 1];
cc_[i + j] = cc[ii[m] + j];
cc_[nl + j + 1] = 0;
if (query(cc_) != nl + j + 1) {
for (h = i + j; h < nl + j; h++)
cc_[h] = cc_[h + 1];
break;
}
j++;
}
while (j < nr)
cc_[nl + j] = cc[ii[m] + j], j++;
memcpy(cc + ii[l], cc_, (nl + nr) * sizeof *cc_);
}
char *guess(int n_, int a__) {
int a;
n = n_, a_ = a__;
ii[0] = 0;
for (a = 0; a < a_; a++) {
memset(cc, a + 'a', n * sizeof *cc), cc[n] = 0;
ii[a + 1] = ii[a] + query(cc);
}
solve(0, a_);
cc[n] = 0;
return cc;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
208 KB |
Guessed the password with 58 queries. |
| 2 |
Correct |
2 ms |
208 KB |
Guessed the password with 97 queries. |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
208 KB |
Guessed the password with 48 queries. |
| 2 |
Correct |
1 ms |
208 KB |
Guessed the password with 90 queries. |
| 3 |
Correct |
2 ms |
208 KB |
Guessed the password with 170 queries. |
| 4 |
Correct |
3 ms |
208 KB |
Guessed the password with 198 queries. |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
37 ms |
208 KB |
Guessed the password with 3514 queries. |
| 2 |
Correct |
42 ms |
208 KB |
Guessed the password with 4971 queries. |
| 3 |
Correct |
40 ms |
208 KB |
Guessed the password with 6481 queries. |
| 4 |
Correct |
47 ms |
208 KB |
Guessed the password with 8887 queries. |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
208 KB |
Guessed the password with 58 queries. |
| 2 |
Correct |
2 ms |
208 KB |
Guessed the password with 97 queries. |
| 3 |
Correct |
1 ms |
208 KB |
Guessed the password with 48 queries. |
| 4 |
Correct |
1 ms |
208 KB |
Guessed the password with 90 queries. |
| 5 |
Correct |
2 ms |
208 KB |
Guessed the password with 170 queries. |
| 6 |
Correct |
3 ms |
208 KB |
Guessed the password with 198 queries. |
| 7 |
Correct |
37 ms |
208 KB |
Guessed the password with 3514 queries. |
| 8 |
Correct |
42 ms |
208 KB |
Guessed the password with 4971 queries. |
| 9 |
Correct |
40 ms |
208 KB |
Guessed the password with 6481 queries. |
| 10 |
Correct |
47 ms |
208 KB |
Guessed the password with 8887 queries. |
| 11 |
Correct |
129 ms |
208 KB |
Guessed the password with 12697 queries. |
| 12 |
Correct |
84 ms |
208 KB |
Guessed the password with 13443 queries. |
| 13 |
Correct |
88 ms |
208 KB |
Guessed the password with 13923 queries. |
| 14 |
Correct |
114 ms |
208 KB |
Guessed the password with 14382 queries. |
| 15 |
Correct |
88 ms |
208 KB |
Guessed the password with 14441 queries. |
| 16 |
Correct |
111 ms |
208 KB |
Guessed the password with 14910 queries. |
| 17 |
Correct |
90 ms |
256 KB |
Guessed the password with 14953 queries. |
| 18 |
Correct |
123 ms |
208 KB |
Guessed the password with 16131 queries. |
| 19 |
Correct |
128 ms |
208 KB |
Guessed the password with 15123 queries. |
| 20 |
Correct |
87 ms |
208 KB |
Guessed the password with 15400 queries. |
| 21 |
Correct |
141 ms |
208 KB |
Guessed the password with 15961 queries. |
| 22 |
Correct |
154 ms |
208 KB |
Guessed the password with 16275 queries. |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
208 KB |
Guessed the password with 58 queries. |
| 2 |
Correct |
2 ms |
208 KB |
Guessed the password with 97 queries. |
| 3 |
Correct |
1 ms |
208 KB |
Guessed the password with 48 queries. |
| 4 |
Correct |
1 ms |
208 KB |
Guessed the password with 90 queries. |
| 5 |
Correct |
2 ms |
208 KB |
Guessed the password with 170 queries. |
| 6 |
Correct |
3 ms |
208 KB |
Guessed the password with 198 queries. |
| 7 |
Correct |
37 ms |
208 KB |
Guessed the password with 3514 queries. |
| 8 |
Correct |
42 ms |
208 KB |
Guessed the password with 4971 queries. |
| 9 |
Correct |
40 ms |
208 KB |
Guessed the password with 6481 queries. |
| 10 |
Correct |
47 ms |
208 KB |
Guessed the password with 8887 queries. |
| 11 |
Correct |
129 ms |
208 KB |
Guessed the password with 12697 queries. |
| 12 |
Correct |
84 ms |
208 KB |
Guessed the password with 13443 queries. |
| 13 |
Correct |
88 ms |
208 KB |
Guessed the password with 13923 queries. |
| 14 |
Correct |
114 ms |
208 KB |
Guessed the password with 14382 queries. |
| 15 |
Correct |
88 ms |
208 KB |
Guessed the password with 14441 queries. |
| 16 |
Correct |
111 ms |
208 KB |
Guessed the password with 14910 queries. |
| 17 |
Correct |
90 ms |
256 KB |
Guessed the password with 14953 queries. |
| 18 |
Correct |
123 ms |
208 KB |
Guessed the password with 16131 queries. |
| 19 |
Correct |
128 ms |
208 KB |
Guessed the password with 15123 queries. |
| 20 |
Correct |
87 ms |
208 KB |
Guessed the password with 15400 queries. |
| 21 |
Correct |
141 ms |
208 KB |
Guessed the password with 15961 queries. |
| 22 |
Correct |
154 ms |
208 KB |
Guessed the password with 16275 queries. |
| 23 |
Correct |
207 ms |
404 KB |
Guessed the password with 23566 queries. |
| 24 |
Correct |
160 ms |
392 KB |
Guessed the password with 22883 queries. |
| 25 |
Correct |
193 ms |
344 KB |
Guessed the password with 23760 queries. |
| 26 |
Correct |
158 ms |
388 KB |
Guessed the password with 23461 queries. |
| 27 |
Correct |
176 ms |
296 KB |
Guessed the password with 23801 queries. |
| 28 |
Correct |
215 ms |
300 KB |
Guessed the password with 22181 queries. |
| 29 |
Correct |
116 ms |
296 KB |
Guessed the password with 23809 queries. |
| 30 |
Correct |
195 ms |
352 KB |
Guessed the password with 21106 queries. |
