답안 #20753 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
20753	2017-02-15T19:34:30 Z	gs12117	복불복 (OJUZ11_luck)	C++11	100 / 100	209 ms	1124 KB

luck

#include<cstdio>
#include<algorithm>
const int mod = 1000000007;
int a[110];
int b[110];
int c[110];
int d[110];
long long int dp[110];
long long int ndp[110];
long long int calc(int n, int m, int x) {
	int p = 0;
	int q = m;
	dp[0] = 1;
	for (int i = 0; i < n; i++) {
		while (p < m&&c[p] + d[n - i - 1] < x) {
			p++;
			dp[p] = 0;
		}
		while (q < n&&c[q] + d[n - i - 1] < x) {
			for (int j = 0; j <= p; j++) {
				dp[j] *= i - j - q + m;
				dp[j] %= mod;
			}
			q++;
		}
		for (int j = 0; j <= p; j++) {
			ndp[j] = dp[j];
		}
		for (int j = 0; j < p; j++) {
			ndp[j + 1] += dp[j] * (p - j);
		}
		for (int j = 0; j <= p; j++) {
			dp[j] = ndp[j] % mod;
		}
	}
	while (p < m) {
		p++;
		dp[p] = 0;
	}
	while (q < n) {
		for (int j = 0; j <= p; j++) {
			dp[j] *= n - j - q + m;
			dp[j] %= mod;
		}
		q++;
	}
	return dp[m];
}
int main() {
	int n, m;
	scanf("%d%d", &n, &m);
	for (int i = 0; i < n; i++) {
		scanf("%d", &a[i]);
	}
	for (int i = 0; i < n; i++) {
		scanf("%d", &b[i]);
	}
	std::sort(a, a + n);
	std::sort(b, b + n);
	m = n - m;
	for (int i = 0; i < n; i++) {
		a[i] *= n;
		a[i] += i;
		b[i] *= n;
	}
	long long int ans = 0;
	for (int i = 0; i < m; i++) {
		for (int j = 0; j < n; j++) {
			int x = a[i] + b[j];
			int cn = 0;
			int dn = 0;
			for (int k = 0; k < n; k++) {
				if (k != i) {
					c[cn] = a[k];
					cn++;
				}
				if (k != j) {
					d[dn] = b[k];
					dn++;
				}
			}
			ans += calc(n - 1, m - 1, x);
			ans %= mod;
		}
	}
	if (m == 0) {
		ans = 1;
		for (int i = 1; i <= n; i++) {
			ans *= i;
			ans %= mod;
		}
	}
	printf("%lld", ans);
	return 0;
}

Compilation message

luck.cpp: In function 'int main()':
luck.cpp:51:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
                       ^
luck.cpp:53:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[i]);
                     ^
luck.cpp:56:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &b[i]);
                     ^

Subtask #1
9.0 / 9.0

#	결과	메모리	Grader output
1	Correct	1124 KB	Output is correct
2	Correct	1124 KB	Output is correct
3	Correct	1124 KB	Output is correct
4	Correct	1124 KB	Output is correct
5	Correct	1124 KB	Output is correct
6	Correct	1124 KB	Output is correct
7	Correct	1124 KB	Output is correct
8	Correct	1124 KB	Output is correct
9	Correct	1124 KB	Output is correct
10	Correct	1124 KB	Output is correct
11	Correct	1124 KB	Output is correct
12	Correct	1124 KB	Output is correct
13	Correct	1124 KB	Output is correct
14	Correct	1124 KB	Output is correct
15	Correct	1124 KB	Output is correct
16	Correct	1124 KB	Output is correct
17	Correct	1124 KB	Output is correct
18	Correct	1124 KB	Output is correct
19	Correct	1124 KB	Output is correct
20	Correct	1124 KB	Output is correct
21	Correct	1124 KB	Output is correct
22	Correct	1124 KB	Output is correct

Subtask #2
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	183 ms	1124 KB	Output is correct
2	Correct	176 ms	1124 KB	Output is correct
3	Correct	179 ms	1124 KB	Output is correct
4	Correct	183 ms	1124 KB	Output is correct
5	Correct	183 ms	1124 KB	Output is correct
6	Correct	116 ms	1124 KB	Output is correct
7	Correct	176 ms	1124 KB	Output is correct
8	Correct	0 ms	1124 KB	Output is correct
9	Correct	0 ms	1124 KB	Output is correct
10	Correct	0 ms	1124 KB	Output is correct
11	Correct	0 ms	1124 KB	Output is correct
12	Correct	0 ms	1124 KB	Output is correct
13	Correct	0 ms	1124 KB	Output is correct
14	Correct	46 ms	1124 KB	Output is correct
15	Correct	3 ms	1124 KB	Output is correct
16	Correct	176 ms	1124 KB	Output is correct
17	Correct	209 ms	1124 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	메모리	Grader output
1	Correct	1124 KB	Output is correct
2	Correct	1124 KB	Output is correct
3	Correct	1124 KB	Output is correct
4	Correct	1124 KB	Output is correct
5	Correct	1124 KB	Output is correct
6	Correct	1124 KB	Output is correct
7	Correct	1124 KB	Output is correct
8	Correct	1124 KB	Output is correct
9	Correct	1124 KB	Output is correct
10	Correct	1124 KB	Output is correct
11	Correct	1124 KB	Output is correct
12	Correct	1124 KB	Output is correct
13	Correct	1124 KB	Output is correct
14	Correct	1124 KB	Output is correct
15	Correct	1124 KB	Output is correct
16	Correct	1124 KB	Output is correct
17	Correct	1124 KB	Output is correct
18	Correct	1124 KB	Output is correct
19	Correct	1124 KB	Output is correct
20	Correct	1124 KB	Output is correct
21	Correct	1124 KB	Output is correct
22	Correct	1124 KB	Output is correct
23	Correct	1124 KB	Output is correct
24	Correct	1124 KB	Output is correct
25	Correct	1124 KB	Output is correct
26	Correct	1124 KB	Output is correct
27	Correct	1124 KB	Output is correct
28	Correct	1124 KB	Output is correct
29	Correct	1124 KB	Output is correct
30	Correct	1124 KB	Output is correct
31	Correct	1124 KB	Output is correct
32	Correct	1124 KB	Output is correct
33	Correct	1124 KB	Output is correct
34	Correct	1124 KB	Output is correct
35	Correct	1124 KB	Output is correct
36	Correct	1124 KB	Output is correct
37	Correct	1124 KB	Output is correct
38	Correct	1124 KB	Output is correct
39	Correct	1124 KB	Output is correct
40	Correct	1124 KB	Output is correct
41	Correct	1124 KB	Output is correct
42	Correct	1124 KB	Output is correct
43	Correct	1124 KB	Output is correct
44	Correct	1124 KB	Output is correct
45	Correct	1124 KB	Output is correct

Subtask #4
26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	1124 KB	Output is correct
2	Correct	0 ms	1124 KB	Output is correct
3	Correct	0 ms	1124 KB	Output is correct
4	Correct	0 ms	1124 KB	Output is correct
5	Correct	0 ms	1124 KB	Output is correct
6	Correct	0 ms	1124 KB	Output is correct
7	Correct	0 ms	1124 KB	Output is correct
8	Correct	0 ms	1124 KB	Output is correct
9	Correct	0 ms	1124 KB	Output is correct
10	Correct	0 ms	1124 KB	Output is correct
11	Correct	0 ms	1124 KB	Output is correct
12	Correct	0 ms	1124 KB	Output is correct
13	Correct	0 ms	1124 KB	Output is correct
14	Correct	0 ms	1124 KB	Output is correct
15	Correct	0 ms	1124 KB	Output is correct
16	Correct	0 ms	1124 KB	Output is correct
17	Correct	0 ms	1124 KB	Output is correct
18	Correct	0 ms	1124 KB	Output is correct
19	Correct	0 ms	1124 KB	Output is correct
20	Correct	0 ms	1124 KB	Output is correct
21	Correct	0 ms	1124 KB	Output is correct
22	Correct	0 ms	1124 KB	Output is correct
23	Correct	183 ms	1124 KB	Output is correct
24	Correct	176 ms	1124 KB	Output is correct
25	Correct	179 ms	1124 KB	Output is correct
26	Correct	183 ms	1124 KB	Output is correct
27	Correct	183 ms	1124 KB	Output is correct
28	Correct	116 ms	1124 KB	Output is correct
29	Correct	176 ms	1124 KB	Output is correct
30	Correct	0 ms	1124 KB	Output is correct
31	Correct	0 ms	1124 KB	Output is correct
32	Correct	0 ms	1124 KB	Output is correct
33	Correct	0 ms	1124 KB	Output is correct
34	Correct	0 ms	1124 KB	Output is correct
35	Correct	0 ms	1124 KB	Output is correct
36	Correct	46 ms	1124 KB	Output is correct
37	Correct	3 ms	1124 KB	Output is correct
38	Correct	176 ms	1124 KB	Output is correct
39	Correct	209 ms	1124 KB	Output is correct
40	Correct	169 ms	1124 KB	Output is correct
41	Correct	163 ms	1124 KB	Output is correct
42	Correct	166 ms	1124 KB	Output is correct
43	Correct	173 ms	1124 KB	Output is correct
44	Correct	163 ms	1124 KB	Output is correct
45	Correct	166 ms	1124 KB	Output is correct
46	Correct	166 ms	1124 KB	Output is correct
47	Correct	176 ms	1124 KB	Output is correct
48	Correct	156 ms	1124 KB	Output is correct
49	Correct	159 ms	1124 KB	Output is correct
50	Correct	176 ms	1124 KB	Output is correct
51	Correct	179 ms	1124 KB	Output is correct
52	Correct	179 ms	1124 KB	Output is correct
53	Correct	173 ms	1124 KB	Output is correct
54	Correct	166 ms	1124 KB	Output is correct
55	Correct	9 ms	1124 KB	Output is correct
56	Correct	9 ms	1124 KB	Output is correct
57	Correct	73 ms	1124 KB	Output is correct
58	Correct	173 ms	1124 KB	Output is correct
59	Correct	169 ms	1124 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	1124 KB	Output is correct
2	Correct	0 ms	1124 KB	Output is correct
3	Correct	0 ms	1124 KB	Output is correct
4	Correct	0 ms	1124 KB	Output is correct
5	Correct	0 ms	1124 KB	Output is correct
6	Correct	0 ms	1124 KB	Output is correct
7	Correct	0 ms	1124 KB	Output is correct
8	Correct	0 ms	1124 KB	Output is correct
9	Correct	0 ms	1124 KB	Output is correct
10	Correct	0 ms	1124 KB	Output is correct
11	Correct	0 ms	1124 KB	Output is correct
12	Correct	0 ms	1124 KB	Output is correct
13	Correct	0 ms	1124 KB	Output is correct
14	Correct	0 ms	1124 KB	Output is correct
15	Correct	0 ms	1124 KB	Output is correct
16	Correct	0 ms	1124 KB	Output is correct
17	Correct	0 ms	1124 KB	Output is correct
18	Correct	0 ms	1124 KB	Output is correct
19	Correct	0 ms	1124 KB	Output is correct
20	Correct	0 ms	1124 KB	Output is correct
21	Correct	0 ms	1124 KB	Output is correct
22	Correct	0 ms	1124 KB	Output is correct
23	Correct	183 ms	1124 KB	Output is correct
24	Correct	176 ms	1124 KB	Output is correct
25	Correct	179 ms	1124 KB	Output is correct
26	Correct	183 ms	1124 KB	Output is correct
27	Correct	183 ms	1124 KB	Output is correct
28	Correct	116 ms	1124 KB	Output is correct
29	Correct	176 ms	1124 KB	Output is correct
30	Correct	0 ms	1124 KB	Output is correct
31	Correct	0 ms	1124 KB	Output is correct
32	Correct	0 ms	1124 KB	Output is correct
33	Correct	0 ms	1124 KB	Output is correct
34	Correct	0 ms	1124 KB	Output is correct
35	Correct	0 ms	1124 KB	Output is correct
36	Correct	46 ms	1124 KB	Output is correct
37	Correct	3 ms	1124 KB	Output is correct
38	Correct	176 ms	1124 KB	Output is correct
39	Correct	209 ms	1124 KB	Output is correct
40	Correct	0 ms	1124 KB	Output is correct
41	Correct	0 ms	1124 KB	Output is correct
42	Correct	0 ms	1124 KB	Output is correct
43	Correct	0 ms	1124 KB	Output is correct
44	Correct	0 ms	1124 KB	Output is correct
45	Correct	0 ms	1124 KB	Output is correct
46	Correct	0 ms	1124 KB	Output is correct
47	Correct	0 ms	1124 KB	Output is correct
48	Correct	0 ms	1124 KB	Output is correct
49	Correct	0 ms	1124 KB	Output is correct
50	Correct	0 ms	1124 KB	Output is correct
51	Correct	0 ms	1124 KB	Output is correct
52	Correct	0 ms	1124 KB	Output is correct
53	Correct	0 ms	1124 KB	Output is correct
54	Correct	0 ms	1124 KB	Output is correct
55	Correct	0 ms	1124 KB	Output is correct
56	Correct	0 ms	1124 KB	Output is correct
57	Correct	0 ms	1124 KB	Output is correct
58	Correct	0 ms	1124 KB	Output is correct
59	Correct	0 ms	1124 KB	Output is correct
60	Correct	0 ms	1124 KB	Output is correct
61	Correct	0 ms	1124 KB	Output is correct
62	Correct	0 ms	1124 KB	Output is correct
63	Correct	169 ms	1124 KB	Output is correct
64	Correct	163 ms	1124 KB	Output is correct
65	Correct	166 ms	1124 KB	Output is correct
66	Correct	173 ms	1124 KB	Output is correct
67	Correct	163 ms	1124 KB	Output is correct
68	Correct	166 ms	1124 KB	Output is correct
69	Correct	166 ms	1124 KB	Output is correct
70	Correct	176 ms	1124 KB	Output is correct
71	Correct	156 ms	1124 KB	Output is correct
72	Correct	159 ms	1124 KB	Output is correct
73	Correct	176 ms	1124 KB	Output is correct
74	Correct	179 ms	1124 KB	Output is correct
75	Correct	179 ms	1124 KB	Output is correct
76	Correct	173 ms	1124 KB	Output is correct
77	Correct	166 ms	1124 KB	Output is correct
78	Correct	9 ms	1124 KB	Output is correct
79	Correct	9 ms	1124 KB	Output is correct
80	Correct	73 ms	1124 KB	Output is correct
81	Correct	173 ms	1124 KB	Output is correct
82	Correct	169 ms	1124 KB	Output is correct
83	Correct	0 ms	1124 KB	Output is correct
84	Correct	0 ms	1124 KB	Output is correct
85	Correct	0 ms	1124 KB	Output is correct
86	Correct	13 ms	1124 KB	Output is correct
87	Correct	0 ms	1124 KB	Output is correct
88	Correct	0 ms	1124 KB	Output is correct
89	Correct	13 ms	1124 KB	Output is correct
90	Correct	169 ms	1124 KB	Output is correct
91	Correct	169 ms	1124 KB	Output is correct
92	Correct	0 ms	1124 KB	Output is correct
93	Correct	79 ms	1124 KB	Output is correct
94	Correct	76 ms	1124 KB	Output is correct
95	Correct	76 ms	1124 KB	Output is correct
96	Correct	69 ms	1124 KB	Output is correct
97	Correct	79 ms	1124 KB	Output is correct
98	Correct	49 ms	1124 KB	Output is correct
99	Correct	0 ms	1124 KB	Output is correct
100	Correct	9 ms	1124 KB	Output is correct
101	Correct	83 ms	1124 KB	Output is correct
102	Correct	83 ms	1124 KB	Output is correct
103	Correct	83 ms	1124 KB	Output is correct
104	Correct	13 ms	1124 KB	Output is correct
105	Correct	16 ms	1124 KB	Output is correct
106	Correct	39 ms	1124 KB	Output is correct
107	Correct	99 ms	1124 KB	Output is correct

답안 #20753

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 13.0 / 13.0

Subtask #3 25.0 / 25.0

Subtask #4 26.0 / 26.0

Subtask #5 27.0 / 27.0

Subtask #1
9.0 / 9.0

Subtask #2
13.0 / 13.0

Subtask #3
25.0 / 25.0

Subtask #4
26.0 / 26.0

Subtask #5
27.0 / 27.0