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Submission #591014

# Submission time Handle Problem Language Result Execution time Memory
591014 2022-07-06T17:48:30 Z piOOE Snake Escaping (JOI18_snake_escaping) C++17
100 / 100
 836 ms 26720 KB 
#include <bits/stdc++.h>

using namespace std;

const int L = 20;

int S[1 << L], A[1 << L], B[1 << L], popcnt[1 << L];

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    for (int i = 1; i < 1 << L; ++i) {
        popcnt[i] = popcnt[i - (i & -i)] + 1;
    }
    int l, q;
    string s;
    cin >> l >> q >> s;
    for (int i = 0; i < 1 << l; ++i) {
        S[i] = A[i] = B[((1 << l) - 1) ^ i] = s[i] - '0';
    }
    for (int i = 0; i < l; ++i) {
        for (int mask = 0; mask < 1 << l; ++mask) {
            if (mask & 1 << i) {
                A[mask] += A[mask ^ 1 << i];
                B[mask] += B[mask ^ 1 << i];
            }
        }
    }
    while (q--) {
        string t;
        cin >> t;
        reverse(t.begin(), t.end());
        int mask0 = 0, mask1 = 0, mask2 = 0;
        for (int i = 0; i < l; ++i) {
            if (t[i] == '0') {
                mask0 ^= 1 << i;
            } else if (t[i] == '1') {
                mask1 ^= 1 << i;
            } else {
                mask2 ^= 1 << i;
            }
        }
        int ans = 0;
        if (popcnt[mask1] <= 6) {
            for (int mask = mask1; mask; mask = (mask - 1) & mask1) {
                ans += A[mask ^ mask2] * (popcnt[mask ^ mask1] & 1 ? -1 : 1);
            }
            ans += A[mask2] * (popcnt[mask1] & 1 ? -1 : 1);
        } else if (popcnt[mask0] <= 6) {
            for (int mask = mask0; mask; mask = (mask - 1) & mask0) {
                ans += B[mask ^ mask2] * (popcnt[mask ^ mask0] & 1 ? -1 : 1);
            }
            ans += B[mask2] * (popcnt[mask0] & 1 ? -1 : 1);
        } else {
            for (int mask = mask2; mask; mask = (mask - 1) & mask2) {
                ans += S[mask ^ mask1];
            }
            ans += S[mask1];
        }
        cout << ans << '\n';
    }
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4452 KB Output is correct
2 Correct 3 ms 4436 KB Output is correct
3 Correct 3 ms 4436 KB Output is correct
4 Correct 3 ms 4436 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 4436 KB Output is correct
7 Correct 4 ms 4436 KB Output is correct
8 Correct 3 ms 4436 KB Output is correct
9 Correct 3 ms 4436 KB Output is correct
10 Correct 3 ms 4436 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4452 KB Output is correct
2 Correct 3 ms 4436 KB Output is correct
3 Correct 3 ms 4436 KB Output is correct
4 Correct 3 ms 4436 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 4436 KB Output is correct
7 Correct 4 ms 4436 KB Output is correct
8 Correct 3 ms 4436 KB Output is correct
9 Correct 3 ms 4436 KB Output is correct
10 Correct 3 ms 4436 KB Output is correct
11 Correct 269 ms 9276 KB Output is correct
12 Correct 204 ms 9076 KB Output is correct
13 Correct 270 ms 8252 KB Output is correct
14 Correct 213 ms 8324 KB Output is correct
15 Correct 205 ms 9304 KB Output is correct
16 Correct 242 ms 8536 KB Output is correct
17 Correct 264 ms 8436 KB Output is correct
18 Correct 161 ms 10300 KB Output is correct
19 Correct 256 ms 7348 KB Output is correct
20 Correct 259 ms 8908 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4452 KB Output is correct
2 Correct 3 ms 4436 KB Output is correct
3 Correct 3 ms 4436 KB Output is correct
4 Correct 3 ms 4436 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 4436 KB Output is correct
7 Correct 4 ms 4436 KB Output is correct
8 Correct 3 ms 4436 KB Output is correct
9 Correct 3 ms 4436 KB Output is correct
10 Correct 3 ms 4436 KB Output is correct
11 Correct 269 ms 9276 KB Output is correct
12 Correct 204 ms 9076 KB Output is correct
13 Correct 270 ms 8252 KB Output is correct
14 Correct 213 ms 8324 KB Output is correct
15 Correct 205 ms 9304 KB Output is correct
16 Correct 242 ms 8536 KB Output is correct
17 Correct 264 ms 8436 KB Output is correct
18 Correct 161 ms 10300 KB Output is correct
19 Correct 256 ms 7348 KB Output is correct
20 Correct 259 ms 8908 KB Output is correct
21 Correct 320 ms 9412 KB Output is correct
22 Correct 243 ms 9540 KB Output is correct
23 Correct 284 ms 8652 KB Output is correct
24 Correct 301 ms 8396 KB Output is correct
25 Correct 238 ms 10440 KB Output is correct
26 Correct 337 ms 9072 KB Output is correct
27 Correct 299 ms 8836 KB Output is correct
28 Correct 183 ms 11352 KB Output is correct
29 Correct 347 ms 7448 KB Output is correct
30 Correct 255 ms 9572 KB Output is correct
31 Correct 258 ms 9368 KB Output is correct
32 Correct 344 ms 9356 KB Output is correct
33 Correct 239 ms 8236 KB Output is correct
34 Correct 288 ms 8512 KB Output is correct
35 Correct 364 ms 8904 KB Output is correct
36 Correct 186 ms 7476 KB Output is correct
37 Correct 224 ms 9384 KB Output is correct
38 Correct 349 ms 7436 KB Output is correct
39 Correct 346 ms 8600 KB Output is correct
40 Correct 313 ms 8412 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4452 KB Output is correct
2 Correct 3 ms 4436 KB Output is correct
3 Correct 3 ms 4436 KB Output is correct
4 Correct 3 ms 4436 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 4436 KB Output is correct
7 Correct 4 ms 4436 KB Output is correct
8 Correct 3 ms 4436 KB Output is correct
9 Correct 3 ms 4436 KB Output is correct
10 Correct 3 ms 4436 KB Output is correct
11 Correct 62 ms 18988 KB Output is correct
12 Correct 59 ms 19108 KB Output is correct
13 Correct 61 ms 18916 KB Output is correct
14 Correct 56 ms 18924 KB Output is correct
15 Correct 51 ms 19028 KB Output is correct
16 Correct 65 ms 18924 KB Output is correct
17 Correct 86 ms 18972 KB Output is correct
18 Correct 52 ms 19104 KB Output is correct
19 Correct 55 ms 18792 KB Output is correct
20 Correct 53 ms 19000 KB Output is correct
21 Correct 52 ms 18916 KB Output is correct
22 Correct 65 ms 18948 KB Output is correct
23 Correct 48 ms 18836 KB Output is correct
24 Correct 73 ms 18972 KB Output is correct
25 Correct 92 ms 19032 KB Output is correct
26 Correct 43 ms 18916 KB Output is correct
27 Correct 47 ms 19016 KB Output is correct
28 Correct 54 ms 18844 KB Output is correct
29 Correct 55 ms 18900 KB Output is correct
30 Correct 72 ms 18868 KB Output is correct
31 Correct 60 ms 18900 KB Output is correct
32 Correct 60 ms 18988 KB Output is correct
33 Correct 66 ms 18916 KB Output is correct
34 Correct 48 ms 18852 KB Output is correct
35 Correct 67 ms 19176 KB Output is correct
36 Correct 72 ms 19108 KB Output is correct
37 Correct 71 ms 18936 KB Output is correct
38 Correct 62 ms 19052 KB Output is correct
39 Correct 59 ms 18956 KB Output is correct
40 Correct 57 ms 18916 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4452 KB Output is correct
2 Correct 3 ms 4436 KB Output is correct
3 Correct 3 ms 4436 KB Output is correct
4 Correct 3 ms 4436 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 4436 KB Output is correct
7 Correct 4 ms 4436 KB Output is correct
8 Correct 3 ms 4436 KB Output is correct
9 Correct 3 ms 4436 KB Output is correct
10 Correct 3 ms 4436 KB Output is correct
11 Correct 269 ms 9276 KB Output is correct
12 Correct 204 ms 9076 KB Output is correct
13 Correct 270 ms 8252 KB Output is correct
14 Correct 213 ms 8324 KB Output is correct
15 Correct 205 ms 9304 KB Output is correct
16 Correct 242 ms 8536 KB Output is correct
17 Correct 264 ms 8436 KB Output is correct
18 Correct 161 ms 10300 KB Output is correct
19 Correct 256 ms 7348 KB Output is correct
20 Correct 259 ms 8908 KB Output is correct
21 Correct 320 ms 9412 KB Output is correct
22 Correct 243 ms 9540 KB Output is correct
23 Correct 284 ms 8652 KB Output is correct
24 Correct 301 ms 8396 KB Output is correct
25 Correct 238 ms 10440 KB Output is correct
26 Correct 337 ms 9072 KB Output is correct
27 Correct 299 ms 8836 KB Output is correct
28 Correct 183 ms 11352 KB Output is correct
29 Correct 347 ms 7448 KB Output is correct
30 Correct 255 ms 9572 KB Output is correct
31 Correct 258 ms 9368 KB Output is correct
32 Correct 344 ms 9356 KB Output is correct
33 Correct 239 ms 8236 KB Output is correct
34 Correct 288 ms 8512 KB Output is correct
35 Correct 364 ms 8904 KB Output is correct
36 Correct 186 ms 7476 KB Output is correct
37 Correct 224 ms 9384 KB Output is correct
38 Correct 349 ms 7436 KB Output is correct
39 Correct 346 ms 8600 KB Output is correct
40 Correct 313 ms 8412 KB Output is correct
41 Correct 62 ms 18988 KB Output is correct
42 Correct 59 ms 19108 KB Output is correct
43 Correct 61 ms 18916 KB Output is correct
44 Correct 56 ms 18924 KB Output is correct
45 Correct 51 ms 19028 KB Output is correct
46 Correct 65 ms 18924 KB Output is correct
47 Correct 86 ms 18972 KB Output is correct
48 Correct 52 ms 19104 KB Output is correct
49 Correct 55 ms 18792 KB Output is correct
50 Correct 53 ms 19000 KB Output is correct
51 Correct 52 ms 18916 KB Output is correct
52 Correct 65 ms 18948 KB Output is correct
53 Correct 48 ms 18836 KB Output is correct
54 Correct 73 ms 18972 KB Output is correct
55 Correct 92 ms 19032 KB Output is correct
56 Correct 43 ms 18916 KB Output is correct
57 Correct 47 ms 19016 KB Output is correct
58 Correct 54 ms 18844 KB Output is correct
59 Correct 55 ms 18900 KB Output is correct
60 Correct 72 ms 18868 KB Output is correct
61 Correct 60 ms 18900 KB Output is correct
62 Correct 60 ms 18988 KB Output is correct
63 Correct 66 ms 18916 KB Output is correct
64 Correct 48 ms 18852 KB Output is correct
65 Correct 67 ms 19176 KB Output is correct
66 Correct 72 ms 19108 KB Output is correct
67 Correct 71 ms 18936 KB Output is correct
68 Correct 62 ms 19052 KB Output is correct
69 Correct 59 ms 18956 KB Output is correct
70 Correct 57 ms 18916 KB Output is correct
71 Correct 363 ms 23832 KB Output is correct
72 Correct 360 ms 23940 KB Output is correct
73 Correct 593 ms 22428 KB Output is correct
74 Correct 634 ms 22756 KB Output is correct
75 Correct 349 ms 24688 KB Output is correct
76 Correct 836 ms 23080 KB Output is correct
77 Correct 796 ms 22984 KB Output is correct
78 Correct 244 ms 26720 KB Output is correct
79 Correct 393 ms 20744 KB Output is correct
80 Correct 442 ms 23864 KB Output is correct
81 Correct 522 ms 23624 KB Output is correct
82 Correct 606 ms 22620 KB Output is correct
83 Correct 368 ms 21844 KB Output is correct
84 Correct 781 ms 22452 KB Output is correct
85 Correct 716 ms 22716 KB Output is correct
86 Correct 237 ms 20436 KB Output is correct
87 Correct 326 ms 23408 KB Output is correct
88 Correct 439 ms 20408 KB Output is correct
89 Correct 578 ms 22016 KB Output is correct
90 Correct 492 ms 22248 KB Output is correct
91 Correct 407 ms 21496 KB Output is correct
92 Correct 675 ms 22516 KB Output is correct
93 Correct 715 ms 22244 KB Output is correct
94 Correct 287 ms 20020 KB Output is correct
95 Correct 607 ms 22240 KB Output is correct
96 Correct 620 ms 22116 KB Output is correct
97 Correct 653 ms 22052 KB Output is correct
98 Correct 669 ms 22124 KB Output is correct
99 Correct 668 ms 21972 KB Output is correct
100 Correct 599 ms 21876 KB Output is correct