// Dit me fryingduc
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define fore(i, a, b) for (int i = (a); i <= (b); i++)
#define pb emplace_back
const int mod = 1e6 + 3;
int binpow(int a, int b)
{
if (b == 0) return 1ll;
int ans = binpow(a, b / 2ll);
return ans * ans % mod * (b & 1ll ? a : 1ll) % mod;
}
int nCk(int n, int k)
{
int ans = 1;
if (k > n || n < 0 || k < 0) return 0;
fore(i, k + 1, n) ans = ans * i % mod;
fore(i, 1, n - k) ans = ans * binpow(i, mod - 2) % mod;
return ans;
}
signed main()
{
cin.tie(0)->sync_with_stdio(0);
int n, k;
cin >> n >> k;
vector<int> a(n - k + 2), x(n + 1, -1);
fore(i, 1, n - k + 1) cin >> a[i];
fore(i, 2, n - k + 1) if (abs(a[i] - a[i - 1]) > 1) return cout << 0, 0;
fore(i, 2, n - k + 1)
{
if (a[i] - a[i - 1] == 1)
x[i + k - 1] = 1,
x[i - 1] = 0;
else if (a[i] - a[i - 1] == -1)
x[i + k - 1] = 0,
x[i - 1] = 1;
else
x[i + k - 1] = x[i - 1];
}
for (int i = n - k; i >= 1; i--)
if (a[i] == a[i + 1])
x[i] = x[i + k];
int use = 0;
fore(i, 1, k)
use += (x[i] == -1),
a[1] -= (x[i] == 1);
cout << nCk(use, a[1]);
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
372 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
372 KB |
Output is correct |
22 |
Correct |
1 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
452 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
372 KB |
Output is correct |
22 |
Correct |
1 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
452 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
39 ms |
18028 KB |
Output is correct |
36 |
Correct |
39 ms |
18520 KB |
Output is correct |
37 |
Correct |
42 ms |
19028 KB |
Output is correct |
38 |
Correct |
52 ms |
19028 KB |
Output is correct |
39 |
Correct |
36 ms |
18004 KB |
Output is correct |
40 |
Correct |
46 ms |
19024 KB |
Output is correct |
41 |
Correct |
43 ms |
18920 KB |
Output is correct |
42 |
Correct |
42 ms |
18004 KB |
Output is correct |
43 |
Correct |
42 ms |
18000 KB |
Output is correct |
44 |
Correct |
38 ms |
18008 KB |
Output is correct |
45 |
Correct |
38 ms |
18024 KB |
Output is correct |
46 |
Correct |
43 ms |
18024 KB |
Output is correct |
47 |
Correct |
38 ms |
18004 KB |
Output is correct |
48 |
Correct |
43 ms |
19028 KB |
Output is correct |
49 |
Correct |
42 ms |
18928 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
372 KB |
Output is correct |
22 |
Correct |
1 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
452 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
39 ms |
18028 KB |
Output is correct |
36 |
Correct |
39 ms |
18520 KB |
Output is correct |
37 |
Correct |
42 ms |
19028 KB |
Output is correct |
38 |
Correct |
52 ms |
19028 KB |
Output is correct |
39 |
Correct |
36 ms |
18004 KB |
Output is correct |
40 |
Correct |
46 ms |
19024 KB |
Output is correct |
41 |
Correct |
43 ms |
18920 KB |
Output is correct |
42 |
Correct |
42 ms |
18004 KB |
Output is correct |
43 |
Correct |
42 ms |
18000 KB |
Output is correct |
44 |
Correct |
38 ms |
18008 KB |
Output is correct |
45 |
Correct |
38 ms |
18024 KB |
Output is correct |
46 |
Correct |
43 ms |
18024 KB |
Output is correct |
47 |
Correct |
38 ms |
18004 KB |
Output is correct |
48 |
Correct |
43 ms |
19028 KB |
Output is correct |
49 |
Correct |
42 ms |
18928 KB |
Output is correct |
50 |
Correct |
55 ms |
20816 KB |
Output is correct |
51 |
Correct |
54 ms |
20928 KB |
Output is correct |
52 |
Correct |
53 ms |
20816 KB |
Output is correct |
53 |
Correct |
53 ms |
20816 KB |
Output is correct |
54 |
Correct |
50 ms |
20828 KB |
Output is correct |
55 |
Correct |
57 ms |
20812 KB |
Output is correct |
56 |
Correct |
50 ms |
20820 KB |
Output is correct |
57 |
Correct |
48 ms |
19796 KB |
Output is correct |
58 |
Correct |
51 ms |
20816 KB |
Output is correct |
59 |
Correct |
50 ms |
20948 KB |
Output is correct |
60 |
Correct |
47 ms |
19804 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
372 KB |
Output is correct |
22 |
Correct |
1 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
452 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
39 ms |
18028 KB |
Output is correct |
36 |
Correct |
39 ms |
18520 KB |
Output is correct |
37 |
Correct |
42 ms |
19028 KB |
Output is correct |
38 |
Correct |
52 ms |
19028 KB |
Output is correct |
39 |
Correct |
36 ms |
18004 KB |
Output is correct |
40 |
Correct |
46 ms |
19024 KB |
Output is correct |
41 |
Correct |
43 ms |
18920 KB |
Output is correct |
42 |
Correct |
42 ms |
18004 KB |
Output is correct |
43 |
Correct |
42 ms |
18000 KB |
Output is correct |
44 |
Correct |
38 ms |
18008 KB |
Output is correct |
45 |
Correct |
38 ms |
18024 KB |
Output is correct |
46 |
Correct |
43 ms |
18024 KB |
Output is correct |
47 |
Correct |
38 ms |
18004 KB |
Output is correct |
48 |
Correct |
43 ms |
19028 KB |
Output is correct |
49 |
Correct |
42 ms |
18928 KB |
Output is correct |
50 |
Correct |
55 ms |
20816 KB |
Output is correct |
51 |
Correct |
54 ms |
20928 KB |
Output is correct |
52 |
Correct |
53 ms |
20816 KB |
Output is correct |
53 |
Correct |
53 ms |
20816 KB |
Output is correct |
54 |
Correct |
50 ms |
20828 KB |
Output is correct |
55 |
Correct |
57 ms |
20812 KB |
Output is correct |
56 |
Correct |
50 ms |
20820 KB |
Output is correct |
57 |
Correct |
48 ms |
19796 KB |
Output is correct |
58 |
Correct |
51 ms |
20816 KB |
Output is correct |
59 |
Correct |
50 ms |
20948 KB |
Output is correct |
60 |
Correct |
47 ms |
19804 KB |
Output is correct |
61 |
Correct |
54 ms |
8284 KB |
Output is correct |
62 |
Correct |
66 ms |
8284 KB |
Output is correct |
63 |
Correct |
16 ms |
8284 KB |
Output is correct |
64 |
Correct |
50 ms |
8236 KB |
Output is correct |
65 |
Correct |
47 ms |
15616 KB |
Output is correct |
66 |
Correct |
59 ms |
13140 KB |
Output is correct |
67 |
Correct |
55 ms |
19796 KB |
Output is correct |
68 |
Correct |
101 ms |
9564 KB |
Output is correct |
69 |
Correct |
3 ms |
8280 KB |
Output is correct |
70 |
Correct |
106 ms |
8284 KB |
Output is correct |
71 |
Correct |
53 ms |
8280 KB |
Output is correct |