oj.uz

Submission #289786

# Submission time Handle Problem Language Result Execution time Memory
289786 2020-09-03T04:38:59 Z rama_pang Snake Escaping (JOI18_snake_escaping) C++14
100 / 100
 1369 ms 50540 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0), cout.tie(0);

  int L, Q;
  cin >> L >> Q;
  vector<vector<int>> A(2, vector<int>(1 << L));
  vector<vector<int>> dp(2, vector<int>(1 << L)); // Subset Sum
  for (int i = 0; i < (1 << L); i++) {
    char c;
    cin >> c;
    dp[0][i] = A[0][i] = dp[1][i ^ ((1 << L) - 1)] = A[1][i ^ ((1 << L) - 1)] = (c - '0');
  }
  for (int bit = 0; bit < 2; bit++) {
    for (int i = 0; i < L; i++) {
      for (int mask = 0; mask < (1 << L); mask++) {
        if (mask & (1 << i)) {
          dp[bit][mask] += dp[bit][mask ^ (1 << i)];
        }
      }
    }
  }
  for (int qi = 0; qi < Q; qi++) { // O(Q 2^(L/3))
    string s;
    cin >> s;
    reverse(begin(s), end(s));
    int mask0 = 0;
    int mask1 = 0;
    int maskq = 0;
    for (int i = 0; i < L; i++) {
      if (s[i] == '0') mask0 |= 1 << i;
      if (s[i] == '1') mask1 |= 1 << i;
      if (s[i] == '?') maskq |= 1 << i;
    }
    int ans = 0;
    if (min(__builtin_popcount(mask0), __builtin_popcount(mask1)) < __builtin_popcount(maskq)) {
      if (__builtin_popcount(mask0) < __builtin_popcount(mask1)) {
        for (int m = mask0; ; m = (m - 1) & mask0) {
          ans += dp[1][(mask0 | maskq) ^ m] * ((__builtin_popcount(m) & 1) ? -1 : 1);
          if (!m) {
            break;
          }
        }
      } else {
        for (int m = mask1; ; m = (m - 1) & mask1) {
          ans += dp[0][(mask1 | maskq) ^ m] * ((__builtin_popcount(m) & 1) ? -1 : 1);
          if (!m) {
            break;
          }
        }
      }
    } else {
      for (int m = maskq; ; m = (m - 1) & maskq) {
        ans += A[0][mask1 | m];
        if (!m) {
          break;
        }
      }
    }
    cout << ans << "\n";
  }
  return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 259 ms 15096 KB Output is correct
12 Correct 265 ms 14840 KB Output is correct
13 Correct 290 ms 14312 KB Output is correct
14 Correct 279 ms 14204 KB Output is correct
15 Correct 270 ms 15188 KB Output is correct
16 Correct 295 ms 14328 KB Output is correct
17 Correct 300 ms 14200 KB Output is correct
18 Correct 221 ms 16248 KB Output is correct
19 Correct 249 ms 13176 KB Output is correct
20 Correct 267 ms 14896 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 259 ms 15096 KB Output is correct
12 Correct 265 ms 14840 KB Output is correct
13 Correct 290 ms 14312 KB Output is correct
14 Correct 279 ms 14204 KB Output is correct
15 Correct 270 ms 15188 KB Output is correct
16 Correct 295 ms 14328 KB Output is correct
17 Correct 300 ms 14200 KB Output is correct
18 Correct 221 ms 16248 KB Output is correct
19 Correct 249 ms 13176 KB Output is correct
20 Correct 267 ms 14896 KB Output is correct
21 Correct 309 ms 18168 KB Output is correct
22 Correct 306 ms 18428 KB Output is correct
23 Correct 333 ms 17400 KB Output is correct
24 Correct 334 ms 17144 KB Output is correct
25 Correct 305 ms 19396 KB Output is correct
26 Correct 345 ms 17912 KB Output is correct
27 Correct 352 ms 17784 KB Output is correct
28 Correct 239 ms 20176 KB Output is correct
29 Correct 274 ms 16376 KB Output is correct
30 Correct 292 ms 18296 KB Output is correct
31 Correct 339 ms 18332 KB Output is correct
32 Correct 375 ms 18296 KB Output is correct
33 Correct 288 ms 17272 KB Output is correct
34 Correct 351 ms 17144 KB Output is correct
35 Correct 346 ms 17784 KB Output is correct
36 Correct 221 ms 16248 KB Output is correct
37 Correct 282 ms 18168 KB Output is correct
38 Correct 283 ms 16388 KB Output is correct
39 Correct 324 ms 17420 KB Output is correct
40 Correct 317 ms 17400 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 145 ms 23148 KB Output is correct
12 Correct 151 ms 23276 KB Output is correct
13 Correct 153 ms 23148 KB Output is correct
14 Correct 172 ms 23148 KB Output is correct
15 Correct 150 ms 23228 KB Output is correct
16 Correct 185 ms 23232 KB Output is correct
17 Correct 172 ms 23148 KB Output is correct
18 Correct 136 ms 23276 KB Output is correct
19 Correct 145 ms 23148 KB Output is correct
20 Correct 144 ms 23148 KB Output is correct
21 Correct 158 ms 23148 KB Output is correct
22 Correct 169 ms 23148 KB Output is correct
23 Correct 145 ms 23020 KB Output is correct
24 Correct 183 ms 23148 KB Output is correct
25 Correct 173 ms 23148 KB Output is correct
26 Correct 136 ms 23148 KB Output is correct
27 Correct 143 ms 23148 KB Output is correct
28 Correct 145 ms 23024 KB Output is correct
29 Correct 153 ms 23148 KB Output is correct
30 Correct 157 ms 23148 KB Output is correct
31 Correct 144 ms 23020 KB Output is correct
32 Correct 183 ms 23100 KB Output is correct
33 Correct 175 ms 23096 KB Output is correct
34 Correct 135 ms 23020 KB Output is correct
35 Correct 164 ms 23148 KB Output is correct
36 Correct 162 ms 23100 KB Output is correct
37 Correct 165 ms 23256 KB Output is correct
38 Correct 163 ms 23148 KB Output is correct
39 Correct 164 ms 23148 KB Output is correct
40 Correct 164 ms 23148 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 259 ms 15096 KB Output is correct
12 Correct 265 ms 14840 KB Output is correct
13 Correct 290 ms 14312 KB Output is correct
14 Correct 279 ms 14204 KB Output is correct
15 Correct 270 ms 15188 KB Output is correct
16 Correct 295 ms 14328 KB Output is correct
17 Correct 300 ms 14200 KB Output is correct
18 Correct 221 ms 16248 KB Output is correct
19 Correct 249 ms 13176 KB Output is correct
20 Correct 267 ms 14896 KB Output is correct
21 Correct 309 ms 18168 KB Output is correct
22 Correct 306 ms 18428 KB Output is correct
23 Correct 333 ms 17400 KB Output is correct
24 Correct 334 ms 17144 KB Output is correct
25 Correct 305 ms 19396 KB Output is correct
26 Correct 345 ms 17912 KB Output is correct
27 Correct 352 ms 17784 KB Output is correct
28 Correct 239 ms 20176 KB Output is correct
29 Correct 274 ms 16376 KB Output is correct
30 Correct 292 ms 18296 KB Output is correct
31 Correct 339 ms 18332 KB Output is correct
32 Correct 375 ms 18296 KB Output is correct
33 Correct 288 ms 17272 KB Output is correct
34 Correct 351 ms 17144 KB Output is correct
35 Correct 346 ms 17784 KB Output is correct
36 Correct 221 ms 16248 KB Output is correct
37 Correct 282 ms 18168 KB Output is correct
38 Correct 283 ms 16388 KB Output is correct
39 Correct 324 ms 17420 KB Output is correct
40 Correct 317 ms 17400 KB Output is correct
41 Correct 145 ms 23148 KB Output is correct
42 Correct 151 ms 23276 KB Output is correct
43 Correct 153 ms 23148 KB Output is correct
44 Correct 172 ms 23148 KB Output is correct
45 Correct 150 ms 23228 KB Output is correct
46 Correct 185 ms 23232 KB Output is correct
47 Correct 172 ms 23148 KB Output is correct
48 Correct 136 ms 23276 KB Output is correct
49 Correct 145 ms 23148 KB Output is correct
50 Correct 144 ms 23148 KB Output is correct
51 Correct 158 ms 23148 KB Output is correct
52 Correct 169 ms 23148 KB Output is correct
53 Correct 145 ms 23020 KB Output is correct
54 Correct 183 ms 23148 KB Output is correct
55 Correct 173 ms 23148 KB Output is correct
56 Correct 136 ms 23148 KB Output is correct
57 Correct 143 ms 23148 KB Output is correct
58 Correct 145 ms 23024 KB Output is correct
59 Correct 153 ms 23148 KB Output is correct
60 Correct 157 ms 23148 KB Output is correct
61 Correct 144 ms 23020 KB Output is correct
62 Correct 183 ms 23100 KB Output is correct
63 Correct 175 ms 23096 KB Output is correct
64 Correct 135 ms 23020 KB Output is correct
65 Correct 164 ms 23148 KB Output is correct
66 Correct 162 ms 23100 KB Output is correct
67 Correct 165 ms 23256 KB Output is correct
68 Correct 163 ms 23148 KB Output is correct
69 Correct 164 ms 23148 KB Output is correct
70 Correct 164 ms 23148 KB Output is correct
71 Correct 584 ms 47800 KB Output is correct
72 Correct 615 ms 47804 KB Output is correct
73 Correct 800 ms 46188 KB Output is correct
74 Correct 1106 ms 46700 KB Output is correct
75 Correct 611 ms 48492 KB Output is correct
76 Correct 1369 ms 46956 KB Output is correct
77 Correct 1159 ms 46804 KB Output is correct
78 Correct 426 ms 50540 KB Output is correct
79 Correct 565 ms 44652 KB Output is correct
80 Correct 585 ms 47724 KB Output is correct
81 Correct 890 ms 47832 KB Output is correct
82 Correct 1119 ms 46652 KB Output is correct
83 Correct 585 ms 45880 KB Output is correct
84 Correct 1116 ms 46604 KB Output is correct
85 Correct 1172 ms 46860 KB Output is correct
86 Correct 405 ms 44524 KB Output is correct
87 Correct 595 ms 47724 KB Output is correct
88 Correct 594 ms 44528 KB Output is correct
89 Correct 761 ms 46268 KB Output is correct
90 Correct 821 ms 46872 KB Output is correct
91 Correct 652 ms 45760 KB Output is correct
92 Correct 1357 ms 46908 KB Output is correct
93 Correct 1161 ms 46872 KB Output is correct
94 Correct 430 ms 44556 KB Output is correct
95 Correct 1000 ms 46648 KB Output is correct
96 Correct 978 ms 46708 KB Output is correct
97 Correct 972 ms 46880 KB Output is correct
98 Correct 978 ms 46592 KB Output is correct
99 Correct 973 ms 46660 KB Output is correct
100 Correct 972 ms 46612 KB Output is correct