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답안 #522342

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
522342 2022-02-04T16:03:41 Z Monarchuwu Snake Escaping (JOI18_snake_escaping) C++17
75 / 100
 2000 ms 30136 KB 
#include<iostream>
#include<algorithm>
#include<string>
#define all(x) x.begin(), x.end()
using namespace std;
typedef long long ll;

const int N = 1 << 20;
int l, q;
string s;

int pw[20 + 1], lg[N];
int a[N], f[N], g[N]; // f chứa con (1 = 01), g chứa cha (0 = 01)
void prep() {
    pw[0] = 1;
    for (int i = 1; i <= l; ++i) pw[i] = pw[i - 1] << 1;

    for (int msk = 0; msk < pw[l]; ++msk) {
        lg[msk] = lg[msk >> 1] + (msk & 1);
        a[msk] = f[msk] = g[msk] = s[msk] ^ 48;
    }

    for (int j = 0; j < l; ++j)
        for (int msk = 0; msk < pw[l]; ++msk)
            if (msk >> j & 1)
                f[msk] += f[msk ^ (1 << j)];
            else g[msk] += g[msk | (1 << j)];
}

int main() {
    cin.tie(NULL)->sync_with_stdio(false);
    cin >> l >> q >> s;
    prep();

    while (q--) {
        string t; cin >> t;
        int m0(0), m1(0), m2(0);
        for (char c : t) {
            m0 <<= 1, m1 <<= 1, m2 <<= 1;
            if (c == '0') ++m0;
            else if (c == '1') ++m1;
            else ++m2;
        }

        int ans(0);
        if (m2 <= l / 3) { // brute ?
            for (int m = m2; true; m = (m - 1) & m2) {
                ans += a[m | m1];
                if (m == 0) break;
            }
        }
        else if (m0 <= l / 3) { // inc-exc 0, dp sos 1 and ? => dùng g
            for (int m = m0; true; m = (m - 1) & m0) {
                if (lg[m] & 1)
                    ans -= g[m | m1];
                else ans += g[m | m1];
                if (m == 0) break;
            }
        }
        else { // inc-exc 1, dp sos 0 and ? => dùng f
            for (int m = m1, k = lg[m1] & 1; true; m = (m - 1) & m1) {
                if ((lg[m] & 1) == k)
                    ans += f[m | m2];
                else ans -= f[m | m2];
                if (m == 0) break;
            }
        }
        cout << ans << '\n';
    }
}
/**  /\_/\
 *  (= ._.)
 *  / >0  \>1
**/

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 200 ms 5864 KB Output is correct
12 Correct 193 ms 5572 KB Output is correct
13 Correct 228 ms 4864 KB Output is correct
14 Correct 220 ms 4772 KB Output is correct
15 Correct 210 ms 5988 KB Output is correct
16 Correct 235 ms 5068 KB Output is correct
17 Correct 236 ms 5064 KB Output is correct
18 Correct 155 ms 6852 KB Output is correct
19 Correct 190 ms 3912 KB Output is correct
20 Correct 199 ms 5488 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 200 ms 5864 KB Output is correct
12 Correct 193 ms 5572 KB Output is correct
13 Correct 228 ms 4864 KB Output is correct
14 Correct 220 ms 4772 KB Output is correct
15 Correct 210 ms 5988 KB Output is correct
16 Correct 235 ms 5068 KB Output is correct
17 Correct 236 ms 5064 KB Output is correct
18 Correct 155 ms 6852 KB Output is correct
19 Correct 190 ms 3912 KB Output is correct
20 Correct 199 ms 5488 KB Output is correct
21 Correct 223 ms 5912 KB Output is correct
22 Correct 225 ms 6184 KB Output is correct
23 Correct 265 ms 5100 KB Output is correct
24 Correct 264 ms 4928 KB Output is correct
25 Correct 218 ms 7032 KB Output is correct
26 Correct 299 ms 5504 KB Output is correct
27 Correct 300 ms 5408 KB Output is correct
28 Correct 170 ms 7976 KB Output is correct
29 Correct 206 ms 3992 KB Output is correct
30 Correct 250 ms 6116 KB Output is correct
31 Correct 265 ms 5956 KB Output is correct
32 Correct 276 ms 6032 KB Output is correct
33 Correct 562 ms 5008 KB Output is correct
34 Correct 301 ms 4988 KB Output is correct
35 Correct 312 ms 5484 KB Output is correct
36 Correct 174 ms 3912 KB Output is correct
37 Correct 202 ms 6020 KB Output is correct
38 Correct 214 ms 4028 KB Output is correct
39 Correct 331 ms 5148 KB Output is correct
40 Correct 280 ms 5124 KB Output is correct

Subtask #4
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 48 ms 19244 KB Output is correct
12 Correct 49 ms 19280 KB Output is correct
13 Correct 57 ms 19208 KB Output is correct
14 Correct 60 ms 19176 KB Output is correct
15 Correct 48 ms 19272 KB Output is correct
16 Correct 107 ms 19268 KB Output is correct
17 Correct 102 ms 19180 KB Output is correct
18 Correct 41 ms 19360 KB Output is correct
19 Correct 47 ms 19060 KB Output is correct
20 Correct 48 ms 19172 KB Output is correct
21 Correct 57 ms 19168 KB Output is correct
22 Correct 76 ms 19172 KB Output is correct
23 Correct 1404 ms 19284 KB Output is correct
24 Correct 109 ms 19196 KB Output is correct
25 Correct 108 ms 19328 KB Output is correct
26 Correct 43 ms 19044 KB Output is correct
27 Correct 49 ms 19172 KB Output is correct
28 Correct 49 ms 19112 KB Output is correct
29 Correct 234 ms 19176 KB Output is correct
30 Correct 69 ms 19128 KB Output is correct
31 Correct 48 ms 19172 KB Output is correct
32 Correct 66 ms 19240 KB Output is correct
33 Correct 103 ms 19192 KB Output is correct
34 Correct 41 ms 19048 KB Output is correct
35 Correct 138 ms 19104 KB Output is correct
36 Correct 114 ms 19144 KB Output is correct
37 Correct 123 ms 19212 KB Output is correct
38 Correct 116 ms 19184 KB Output is correct
39 Correct 118 ms 19204 KB Output is correct
40 Correct 119 ms 19128 KB Output is correct

Subtask #5
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 200 ms 5864 KB Output is correct
12 Correct 193 ms 5572 KB Output is correct
13 Correct 228 ms 4864 KB Output is correct
14 Correct 220 ms 4772 KB Output is correct
15 Correct 210 ms 5988 KB Output is correct
16 Correct 235 ms 5068 KB Output is correct
17 Correct 236 ms 5064 KB Output is correct
18 Correct 155 ms 6852 KB Output is correct
19 Correct 190 ms 3912 KB Output is correct
20 Correct 199 ms 5488 KB Output is correct
21 Correct 223 ms 5912 KB Output is correct
22 Correct 225 ms 6184 KB Output is correct
23 Correct 265 ms 5100 KB Output is correct
24 Correct 264 ms 4928 KB Output is correct
25 Correct 218 ms 7032 KB Output is correct
26 Correct 299 ms 5504 KB Output is correct
27 Correct 300 ms 5408 KB Output is correct
28 Correct 170 ms 7976 KB Output is correct
29 Correct 206 ms 3992 KB Output is correct
30 Correct 250 ms 6116 KB Output is correct
31 Correct 265 ms 5956 KB Output is correct
32 Correct 276 ms 6032 KB Output is correct
33 Correct 562 ms 5008 KB Output is correct
34 Correct 301 ms 4988 KB Output is correct
35 Correct 312 ms 5484 KB Output is correct
36 Correct 174 ms 3912 KB Output is correct
37 Correct 202 ms 6020 KB Output is correct
38 Correct 214 ms 4028 KB Output is correct
39 Correct 331 ms 5148 KB Output is correct
40 Correct 280 ms 5124 KB Output is correct
41 Correct 48 ms 19244 KB Output is correct
42 Correct 49 ms 19280 KB Output is correct
43 Correct 57 ms 19208 KB Output is correct
44 Correct 60 ms 19176 KB Output is correct
45 Correct 48 ms 19272 KB Output is correct
46 Correct 107 ms 19268 KB Output is correct
47 Correct 102 ms 19180 KB Output is correct
48 Correct 41 ms 19360 KB Output is correct
49 Correct 47 ms 19060 KB Output is correct
50 Correct 48 ms 19172 KB Output is correct
51 Correct 57 ms 19168 KB Output is correct
52 Correct 76 ms 19172 KB Output is correct
53 Correct 1404 ms 19284 KB Output is correct
54 Correct 109 ms 19196 KB Output is correct
55 Correct 108 ms 19328 KB Output is correct
56 Correct 43 ms 19044 KB Output is correct
57 Correct 49 ms 19172 KB Output is correct
58 Correct 49 ms 19112 KB Output is correct
59 Correct 234 ms 19176 KB Output is correct
60 Correct 69 ms 19128 KB Output is correct
61 Correct 48 ms 19172 KB Output is correct
62 Correct 66 ms 19240 KB Output is correct
63 Correct 103 ms 19192 KB Output is correct
64 Correct 41 ms 19048 KB Output is correct
65 Correct 138 ms 19104 KB Output is correct
66 Correct 114 ms 19144 KB Output is correct
67 Correct 123 ms 19212 KB Output is correct
68 Correct 116 ms 19184 KB Output is correct
69 Correct 118 ms 19204 KB Output is correct
70 Correct 119 ms 19128 KB Output is correct
71 Correct 343 ms 30136 KB Output is correct
72 Correct 334 ms 25092 KB Output is correct
73 Correct 554 ms 24788 KB Output is correct
74 Correct 726 ms 24804 KB Output is correct
75 Correct 356 ms 25992 KB Output is correct
76 Correct 1281 ms 24296 KB Output is correct
77 Correct 1694 ms 24428 KB Output is correct
78 Correct 226 ms 28004 KB Output is correct
79 Correct 319 ms 22048 KB Output is correct
80 Correct 336 ms 25068 KB Output is correct
81 Correct 487 ms 25112 KB Output is correct
82 Correct 721 ms 24000 KB Output is correct
83 Execution timed out 2064 ms 20348 KB Time limit exceeded
84 Halted 0 ms 0 KB -