oj.uz

Submission #696226

# Submission time Handle Problem Language Result Execution time Memory
696226 2023-02-06T02:13:47 Z rainboy None (JOI16_solitaire) C
100 / 100
 57 ms 448 KB 
#include <stdio.h>

#define N	2000
#define M	(N * 3)
#define MD	1000000007

int main() {
	static char cc[3][N + 1];
	static int dp[M + 1][2], dq[M + 1][2];
	int n, m, k, h, i, j, x, ans;

	scanf("%d", &n);
	for (h = 0; h < 3; h++)
		scanf("%s", cc[h]);
	if (cc[0][0] == 'x' || cc[2][0] == 'x' || cc[0][n - 1] == 'x' || cc[2][n - 1] == 'x') {
		printf("0\n");
		return 0;
	}
	for (i = 1; i < n; i++)
		if (cc[0][i] == 'x' && cc[0][i - 1] == 'x' || cc[2][i] == 'x' && cc[2][i - 1] == 'x') {
			printf("0\n");
			return 0;
		}
	m = 0;
	dp[0][0] = 1;
	for (i = 0; i < n; i++) {
		k = 0;
		if (cc[0][i] == 'x')
			k++;
		if (cc[2][i] == 'x')
			k++;
		if (cc[1][i] == 'o') {
			for (j = 0; j <= m; j++)
				dq[j][0] = dq[j][1] = 0;
			if (k == 0)
				x = 1;
			else if (k == 1)
				x = m + 1;
			else
				x = (m + 1) * (m + 2);
			for (j = 0; j <= m; j++) {
				dq[0][0] = (dq[0][0] + (long long) dp[j][0] * x) % MD;
				dq[0][0] = (dq[0][0] + (long long) dp[j][1] * x) % MD;
			}
			for (j = 0; j <= m + k; j++)
				dp[j][0] = dq[j][0], dp[j][1] = dq[j][1];
			m += k;
		} else {
			for (j = 0; j <= m + 1; j++)
				dq[j][0] = dq[j][1] = 0;
			x = 0;
			for (j = 0; j <= m; j++) {
				x = (x + dp[j][0]) % MD;
				dq[j + 1][1] = (dq[j + 1][1] + x) % MD;
			}
			for (j = 1; j <= m + 1; j++)
				dq[j][0] = (dq[j][0] + x) % MD;
			x = 0;
			for (j = m; j >= 0; j--) {
				x = (x + dp[j][1]) % MD;
				if (j > 0)
					dq[j][0] = (dq[j][0] + x) % MD;
			}
			for (j = 0; j <= m + 1; j++)
				dp[j][0] = dq[j][0], dp[j][1] = dq[j][1];
			m++;
			for (j = 0; j <= m + k; j++)
				dq[j][0] = dq[j][1] = 0;
			if (k == 0) {
				for (j = 1; j <= m; j++) {
					x = dp[j][0];
					dq[j][0] = (dq[j][0] + x) % MD;
				}
			} else if (k == 1) {
				for (j = 1; j <= m; j++) {
					x = dp[j][0];
					dq[j + 1][0] = (dq[j + 1][0] + (long long) x * j) % MD;
					x = dp[j][1];
					dq[j][1] = (dq[j][1] + (long long) x * (m - j + 1)) % MD;
				}
			} else {
				for (j = 1; j <= m; j++) {
					x = dp[j][0];
					dq[j + 2][0] = (dq[j + 2][0] + (long long) x * j * (j + 1)) % MD;
					x = dp[j][1];
					dq[j][1] = (dq[j][1] + (long long) x * (m - j + 1) * (m - j + 2)) % MD;
					dq[j + 1][1] = (dq[j + 1][1] + (long long) x * j * (m - j + 1) * 2) % MD;
				}
			}
			for (j = 0; j <= m + k; j++)
				dp[j][0] = dq[j][0], dp[j][1] = dq[j][1];
			m += k;
		}
	}
	ans = 0;
	for (j = 0; j <= m; j++) {
		ans = (ans + dp[j][0]) % MD;
		ans = (ans + dp[j][1]) % MD;
	}
	printf("%d\n", ans);
	return 0;
}

Compilation message

solitaire.c: In function 'main':
solitaire.c:20:23: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   20 |   if (cc[0][i] == 'x' && cc[0][i - 1] == 'x' || cc[2][i] == 'x' && cc[2][i - 1] == 'x') {
      |       ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
solitaire.c:12:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
solitaire.c:14:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |   scanf("%s", cc[h]);
      |   ^~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 212 KB Output is correct
2 Correct 20 ms 212 KB Output is correct
3 Correct 4 ms 308 KB Output is correct
4 Correct 28 ms 332 KB Output is correct
5 Correct 26 ms 316 KB Output is correct
6 Correct 25 ms 316 KB Output is correct
7 Correct 18 ms 328 KB Output is correct
8 Correct 31 ms 432 KB Output is correct
9 Correct 29 ms 320 KB Output is correct
10 Correct 19 ms 296 KB Output is correct
11 Correct 22 ms 320 KB Output is correct
12 Correct 32 ms 312 KB Output is correct
13 Correct 28 ms 316 KB Output is correct
14 Correct 28 ms 320 KB Output is correct
15 Correct 28 ms 328 KB Output is correct
16 Correct 28 ms 320 KB Output is correct
17 Correct 28 ms 320 KB Output is correct
18 Correct 28 ms 212 KB Output is correct
19 Correct 28 ms 316 KB Output is correct
20 Correct 29 ms 320 KB Output is correct
21 Correct 29 ms 312 KB Output is correct
22 Correct 29 ms 332 KB Output is correct
23 Correct 29 ms 312 KB Output is correct
24 Correct 32 ms 328 KB Output is correct
25 Correct 29 ms 224 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 284 KB Output is correct
4 Correct 0 ms 216 KB Output is correct
5 Correct 0 ms 288 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 288 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 288 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 284 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 288 KB Output is correct

Subtask #4
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 284 KB Output is correct
16 Correct 0 ms 216 KB Output is correct
17 Correct 0 ms 288 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 288 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 288 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 284 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 0 ms 288 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 288 KB Output is correct
40 Correct 2 ms 212 KB Output is correct
41 Correct 1 ms 284 KB Output is correct
42 Correct 1 ms 276 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 288 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 5 ms 212 KB Output is correct
14 Correct 20 ms 212 KB Output is correct
15 Correct 4 ms 308 KB Output is correct
16 Correct 28 ms 332 KB Output is correct
17 Correct 26 ms 316 KB Output is correct
18 Correct 25 ms 316 KB Output is correct
19 Correct 18 ms 328 KB Output is correct
20 Correct 31 ms 432 KB Output is correct
21 Correct 29 ms 320 KB Output is correct
22 Correct 19 ms 296 KB Output is correct
23 Correct 22 ms 320 KB Output is correct
24 Correct 32 ms 312 KB Output is correct
25 Correct 28 ms 316 KB Output is correct
26 Correct 28 ms 320 KB Output is correct
27 Correct 28 ms 328 KB Output is correct
28 Correct 28 ms 320 KB Output is correct
29 Correct 28 ms 320 KB Output is correct
30 Correct 28 ms 212 KB Output is correct
31 Correct 28 ms 316 KB Output is correct
32 Correct 29 ms 320 KB Output is correct
33 Correct 29 ms 312 KB Output is correct
34 Correct 29 ms 332 KB Output is correct
35 Correct 29 ms 312 KB Output is correct
36 Correct 32 ms 328 KB Output is correct
37 Correct 29 ms 224 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 284 KB Output is correct
41 Correct 0 ms 216 KB Output is correct
42 Correct 0 ms 288 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 0 ms 288 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 0 ms 212 KB Output is correct
52 Correct 0 ms 212 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 0 ms 212 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 0 ms 288 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 284 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 0 ms 288 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 0 ms 288 KB Output is correct
65 Correct 2 ms 212 KB Output is correct
66 Correct 1 ms 284 KB Output is correct
67 Correct 1 ms 276 KB Output is correct
68 Correct 1 ms 212 KB Output is correct
69 Correct 1 ms 212 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 1 ms 212 KB Output is correct
72 Correct 1 ms 212 KB Output is correct
73 Correct 1 ms 288 KB Output is correct
74 Correct 25 ms 340 KB Output is correct
75 Correct 5 ms 212 KB Output is correct
76 Correct 10 ms 312 KB Output is correct
77 Correct 41 ms 320 KB Output is correct
78 Correct 42 ms 320 KB Output is correct
79 Correct 28 ms 312 KB Output is correct
80 Correct 37 ms 320 KB Output is correct
81 Correct 33 ms 316 KB Output is correct
82 Correct 38 ms 448 KB Output is correct
83 Correct 26 ms 320 KB Output is correct
84 Correct 22 ms 332 KB Output is correct
85 Correct 33 ms 332 KB Output is correct
86 Correct 52 ms 316 KB Output is correct
87 Correct 57 ms 324 KB Output is correct
88 Correct 54 ms 328 KB Output is correct
89 Correct 54 ms 332 KB Output is correct
90 Correct 52 ms 444 KB Output is correct
91 Correct 56 ms 416 KB Output is correct
92 Correct 51 ms 312 KB Output is correct
93 Correct 51 ms 324 KB Output is correct
94 Correct 52 ms 320 KB Output is correct
95 Correct 52 ms 332 KB Output is correct
96 Correct 51 ms 340 KB Output is correct
97 Correct 52 ms 332 KB Output is correct