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답안 #705581

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
705581 2023-03-04T17:09:41 Z rainboy Snake Escaping (JOI18_snake_escaping) C
100 / 100
 1912 ms 28372 KB 
#include <stdio.h>

#define N	20
#define M	12
#define L	8
#define Q	1000000
#define N_	531441

int min(int a, int b) { return a < b ? a : b; }

int pp3[M + 1];

void init() {
	int m;

	pp3[0] = 1;
	for (m = 1; m <= M; m++)
		pp3[m] = pp3[m - 1] * 3;
}

void solve(char *cc, int *dp, int m) {
	int p, i;

	if (m == 0) {
		dp[0] = cc[0] - '0';
		return;
	}
	p = pp3[m - 1];
	solve(cc, dp, m - 1);
	solve(cc + (1 << m - 1), dp + p, m - 1);
	for (i = 0; i < p; i++)
		dp[p * 2 + i] = dp[i] + dp[p + i];
}

int main() {
	static char cc[(1 << N) + 1];
	static int bb_[Q], lower[Q], upper[Q], ans[Q], dp[N_];
	int n, m, l, q, h, i, b;

	init();
	scanf("%d%d%s", &n, &q, cc), m = min(n, M), l = n - m;
	for (h = 0; h < q; h++) {
		static char s[N + 1];

		scanf("%s", s);
		for (i = m - 1; i >= 0; i--)
			bb_[h] = bb_[h] * 3 + (s[n - 1 - i] == '?' ? 2 : (s[n - 1 - i] == '0' ? 0 : 1));
		for (i = 0; i < l; i++)
			if (s[n - 1 - m - i] == '1')
				lower[h] |= 1 << i, upper[h] |= 1 << i;
			else if (s[n - 1 - m - i] == '?')
				upper[h] |= 1 << i;
	}
	for (b = 0; b < 1 << l; b++) {
		solve(cc + (b << m), dp, m);
		for (h = 0; h < q; h++)
			if ((lower[h] & b) == lower[h] && (upper[h] | b) == upper[h])
				ans[h] += dp[bb_[h]];
	}
	for (h = 0; h < q; h++)
		printf("%d\n", ans[h]);
	return 0;
}

Compilation message

snake_escaping.c: In function 'solve':
snake_escaping.c:30:21: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   30 |  solve(cc + (1 << m - 1), dp + p, m - 1);
      |                   ~~^~~
snake_escaping.c: In function 'main':
snake_escaping.c:41:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |  scanf("%d%d%s", &n, &q, cc), m = min(n, M), l = n - m;
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
snake_escaping.c:45:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |   scanf("%s", s);
      |   ^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 560 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 556 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 560 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 556 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 225 ms 15772 KB Output is correct
12 Correct 225 ms 15420 KB Output is correct
13 Correct 198 ms 14700 KB Output is correct
14 Correct 204 ms 14860 KB Output is correct
15 Correct 208 ms 15840 KB Output is correct
16 Correct 209 ms 14876 KB Output is correct
17 Correct 208 ms 14864 KB Output is correct
18 Correct 165 ms 16804 KB Output is correct
19 Correct 164 ms 13772 KB Output is correct
20 Correct 223 ms 15444 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 560 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 556 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 225 ms 15772 KB Output is correct
12 Correct 225 ms 15420 KB Output is correct
13 Correct 198 ms 14700 KB Output is correct
14 Correct 204 ms 14860 KB Output is correct
15 Correct 208 ms 15840 KB Output is correct
16 Correct 209 ms 14876 KB Output is correct
17 Correct 208 ms 14864 KB Output is correct
18 Correct 165 ms 16804 KB Output is correct
19 Correct 164 ms 13772 KB Output is correct
20 Correct 223 ms 15444 KB Output is correct
21 Correct 239 ms 25380 KB Output is correct
22 Correct 272 ms 21704 KB Output is correct
23 Correct 232 ms 24644 KB Output is correct
24 Correct 225 ms 24456 KB Output is correct
25 Correct 236 ms 26452 KB Output is correct
26 Correct 246 ms 26612 KB Output is correct
27 Correct 247 ms 24884 KB Output is correct
28 Correct 191 ms 24140 KB Output is correct
29 Correct 196 ms 23112 KB Output is correct
30 Correct 275 ms 27448 KB Output is correct
31 Correct 242 ms 28092 KB Output is correct
32 Correct 242 ms 28372 KB Output is correct
33 Correct 219 ms 25680 KB Output is correct
34 Correct 247 ms 24352 KB Output is correct
35 Correct 251 ms 26408 KB Output is correct
36 Correct 187 ms 26228 KB Output is correct
37 Correct 234 ms 24568 KB Output is correct
38 Correct 201 ms 26520 KB Output is correct
39 Correct 231 ms 25580 KB Output is correct
40 Correct 229 ms 27276 KB Output is correct

Subtask #4
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 560 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 556 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 117 ms 6488 KB Output is correct
12 Correct 127 ms 6284 KB Output is correct
13 Correct 151 ms 6360 KB Output is correct
14 Correct 133 ms 6420 KB Output is correct
15 Correct 169 ms 6492 KB Output is correct
16 Correct 132 ms 6352 KB Output is correct
17 Correct 140 ms 6380 KB Output is correct
18 Correct 103 ms 6412 KB Output is correct
19 Correct 112 ms 6220 KB Output is correct
20 Correct 115 ms 6484 KB Output is correct
21 Correct 154 ms 6476 KB Output is correct
22 Correct 127 ms 6316 KB Output is correct
23 Correct 110 ms 6356 KB Output is correct
24 Correct 136 ms 6312 KB Output is correct
25 Correct 132 ms 6376 KB Output is correct
26 Correct 98 ms 6276 KB Output is correct
27 Correct 117 ms 6232 KB Output is correct
28 Correct 116 ms 6236 KB Output is correct
29 Correct 112 ms 6364 KB Output is correct
30 Correct 125 ms 6376 KB Output is correct
31 Correct 150 ms 6360 KB Output is correct
32 Correct 144 ms 6348 KB Output is correct
33 Correct 137 ms 6376 KB Output is correct
34 Correct 105 ms 5904 KB Output is correct
35 Correct 162 ms 6388 KB Output is correct
36 Correct 153 ms 6356 KB Output is correct
37 Correct 155 ms 6476 KB Output is correct
38 Correct 152 ms 6356 KB Output is correct
39 Correct 159 ms 6356 KB Output is correct
40 Correct 154 ms 6392 KB Output is correct

Subtask #5
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 560 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 556 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 225 ms 15772 KB Output is correct
12 Correct 225 ms 15420 KB Output is correct
13 Correct 198 ms 14700 KB Output is correct
14 Correct 204 ms 14860 KB Output is correct
15 Correct 208 ms 15840 KB Output is correct
16 Correct 209 ms 14876 KB Output is correct
17 Correct 208 ms 14864 KB Output is correct
18 Correct 165 ms 16804 KB Output is correct
19 Correct 164 ms 13772 KB Output is correct
20 Correct 223 ms 15444 KB Output is correct
21 Correct 239 ms 25380 KB Output is correct
22 Correct 272 ms 21704 KB Output is correct
23 Correct 232 ms 24644 KB Output is correct
24 Correct 225 ms 24456 KB Output is correct
25 Correct 236 ms 26452 KB Output is correct
26 Correct 246 ms 26612 KB Output is correct
27 Correct 247 ms 24884 KB Output is correct
28 Correct 191 ms 24140 KB Output is correct
29 Correct 196 ms 23112 KB Output is correct
30 Correct 275 ms 27448 KB Output is correct
31 Correct 242 ms 28092 KB Output is correct
32 Correct 242 ms 28372 KB Output is correct
33 Correct 219 ms 25680 KB Output is correct
34 Correct 247 ms 24352 KB Output is correct
35 Correct 251 ms 26408 KB Output is correct
36 Correct 187 ms 26228 KB Output is correct
37 Correct 234 ms 24568 KB Output is correct
38 Correct 201 ms 26520 KB Output is correct
39 Correct 231 ms 25580 KB Output is correct
40 Correct 229 ms 27276 KB Output is correct
41 Correct 117 ms 6488 KB Output is correct
42 Correct 127 ms 6284 KB Output is correct
43 Correct 151 ms 6360 KB Output is correct
44 Correct 133 ms 6420 KB Output is correct
45 Correct 169 ms 6492 KB Output is correct
46 Correct 132 ms 6352 KB Output is correct
47 Correct 140 ms 6380 KB Output is correct
48 Correct 103 ms 6412 KB Output is correct
49 Correct 112 ms 6220 KB Output is correct
50 Correct 115 ms 6484 KB Output is correct
51 Correct 154 ms 6476 KB Output is correct
52 Correct 127 ms 6316 KB Output is correct
53 Correct 110 ms 6356 KB Output is correct
54 Correct 136 ms 6312 KB Output is correct
55 Correct 132 ms 6376 KB Output is correct
56 Correct 98 ms 6276 KB Output is correct
57 Correct 117 ms 6232 KB Output is correct
58 Correct 116 ms 6236 KB Output is correct
59 Correct 112 ms 6364 KB Output is correct
60 Correct 125 ms 6376 KB Output is correct
61 Correct 150 ms 6360 KB Output is correct
62 Correct 144 ms 6348 KB Output is correct
63 Correct 137 ms 6376 KB Output is correct
64 Correct 105 ms 5904 KB Output is correct
65 Correct 162 ms 6388 KB Output is correct
66 Correct 153 ms 6356 KB Output is correct
67 Correct 155 ms 6476 KB Output is correct
68 Correct 152 ms 6356 KB Output is correct
69 Correct 159 ms 6356 KB Output is correct
70 Correct 154 ms 6392 KB Output is correct
71 Correct 848 ms 25728 KB Output is correct
72 Correct 911 ms 20684 KB Output is correct
73 Correct 1399 ms 23088 KB Output is correct
74 Correct 1269 ms 23160 KB Output is correct
75 Correct 1912 ms 25520 KB Output is correct
76 Correct 1200 ms 24068 KB Output is correct
77 Correct 1276 ms 25392 KB Output is correct
78 Correct 585 ms 26188 KB Output is correct
79 Correct 798 ms 21380 KB Output is correct
80 Correct 873 ms 25932 KB Output is correct
81 Correct 1575 ms 26884 KB Output is correct
82 Correct 1189 ms 23516 KB Output is correct
83 Correct 712 ms 24084 KB Output is correct
84 Correct 1202 ms 24272 KB Output is correct
85 Correct 1274 ms 25748 KB Output is correct
86 Correct 448 ms 25540 KB Output is correct
87 Correct 882 ms 22620 KB Output is correct
88 Correct 821 ms 25332 KB Output is correct
89 Correct 924 ms 26824 KB Output is correct
90 Correct 1135 ms 23644 KB Output is correct
91 Correct 1501 ms 22448 KB Output is correct
92 Correct 1291 ms 25448 KB Output is correct
93 Correct 1272 ms 26596 KB Output is correct
94 Correct 564 ms 14788 KB Output is correct
95 Correct 1604 ms 24796 KB Output is correct
96 Correct 1610 ms 24776 KB Output is correct
97 Correct 1598 ms 25940 KB Output is correct
98 Correct 1596 ms 25724 KB Output is correct
99 Correct 1607 ms 25700 KB Output is correct
100 Correct 1596 ms 24552 KB Output is correct