# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
573748 |
2022-06-07T06:53:20 Z |
Hanksburger |
Boat (APIO16_boat) |
C++17 |
|
758 ms |
4548 KB |
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int mod=1e9+7;
int dp[1005][505], inv[505], a[505], b[505], c[1005];
set<int> s;
int f(int x, int y)
{
if (!y)
return 1;
int res=f(x, y/2);
if (y&1)
return res*res%mod*x%mod;
else
return res*res%mod;
}
signed main()
{
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int n, m=0;
cin >> n;
for (int i=1; i<=n; i++)
inv[i]=f(i, mod-2);
for (int i=1; i<=n; i++)
{
cin >> a[i] >> b[i];
s.insert(a[i]);
s.insert(b[i]+1);
}
for (auto itr=s.begin(); itr!=s.end(); itr++)
c[++m]=(*itr);
for (int i=0; i<=n; i++)
dp[0][i]=1;
for (int i=1; i<m; i++)
{
for (int j=0; j<=n; j++)
{
dp[i][j]=dp[i-1][j];
int num=1, cnt=0;
for (int k=1; k<=j; k++)
{
if (a[j-k+1]<=c[i] && c[i+1]-1<=b[j-k+1])
{
cnt++;
num=num*(c[i+1]-c[i]+cnt-1)%mod*inv[cnt]%mod;
dp[i][j]=(dp[i][j]+dp[i-1][j-k]*num)%mod;
}
}
}
}
cout << dp[m-1][n]-1;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
257 ms |
4228 KB |
Output is correct |
2 |
Correct |
241 ms |
4320 KB |
Output is correct |
3 |
Correct |
262 ms |
4232 KB |
Output is correct |
4 |
Correct |
237 ms |
4292 KB |
Output is correct |
5 |
Correct |
240 ms |
4300 KB |
Output is correct |
6 |
Correct |
168 ms |
4300 KB |
Output is correct |
7 |
Correct |
154 ms |
4300 KB |
Output is correct |
8 |
Correct |
160 ms |
4316 KB |
Output is correct |
9 |
Correct |
197 ms |
4220 KB |
Output is correct |
10 |
Correct |
161 ms |
4224 KB |
Output is correct |
11 |
Correct |
167 ms |
4220 KB |
Output is correct |
12 |
Correct |
208 ms |
4304 KB |
Output is correct |
13 |
Correct |
163 ms |
4316 KB |
Output is correct |
14 |
Correct |
153 ms |
4284 KB |
Output is correct |
15 |
Correct |
161 ms |
4228 KB |
Output is correct |
16 |
Correct |
51 ms |
972 KB |
Output is correct |
17 |
Correct |
44 ms |
1084 KB |
Output is correct |
18 |
Correct |
56 ms |
968 KB |
Output is correct |
19 |
Correct |
44 ms |
988 KB |
Output is correct |
20 |
Correct |
43 ms |
976 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
257 ms |
4228 KB |
Output is correct |
2 |
Correct |
241 ms |
4320 KB |
Output is correct |
3 |
Correct |
262 ms |
4232 KB |
Output is correct |
4 |
Correct |
237 ms |
4292 KB |
Output is correct |
5 |
Correct |
240 ms |
4300 KB |
Output is correct |
6 |
Correct |
168 ms |
4300 KB |
Output is correct |
7 |
Correct |
154 ms |
4300 KB |
Output is correct |
8 |
Correct |
160 ms |
4316 KB |
Output is correct |
9 |
Correct |
197 ms |
4220 KB |
Output is correct |
10 |
Correct |
161 ms |
4224 KB |
Output is correct |
11 |
Correct |
167 ms |
4220 KB |
Output is correct |
12 |
Correct |
208 ms |
4304 KB |
Output is correct |
13 |
Correct |
163 ms |
4316 KB |
Output is correct |
14 |
Correct |
153 ms |
4284 KB |
Output is correct |
15 |
Correct |
161 ms |
4228 KB |
Output is correct |
16 |
Correct |
51 ms |
972 KB |
Output is correct |
17 |
Correct |
44 ms |
1084 KB |
Output is correct |
18 |
Correct |
56 ms |
968 KB |
Output is correct |
19 |
Correct |
44 ms |
988 KB |
Output is correct |
20 |
Correct |
43 ms |
976 KB |
Output is correct |
21 |
Correct |
465 ms |
4112 KB |
Output is correct |
22 |
Correct |
428 ms |
3924 KB |
Output is correct |
23 |
Correct |
445 ms |
3888 KB |
Output is correct |
24 |
Correct |
419 ms |
3860 KB |
Output is correct |
25 |
Correct |
492 ms |
3892 KB |
Output is correct |
26 |
Correct |
666 ms |
3972 KB |
Output is correct |
27 |
Correct |
671 ms |
3904 KB |
Output is correct |
28 |
Correct |
657 ms |
3808 KB |
Output is correct |
29 |
Correct |
666 ms |
3740 KB |
Output is correct |
30 |
Correct |
170 ms |
4404 KB |
Output is correct |
31 |
Correct |
167 ms |
4312 KB |
Output is correct |
32 |
Correct |
165 ms |
4300 KB |
Output is correct |
33 |
Correct |
162 ms |
4216 KB |
Output is correct |
34 |
Correct |
184 ms |
4268 KB |
Output is correct |
35 |
Correct |
262 ms |
4220 KB |
Output is correct |
36 |
Correct |
243 ms |
4304 KB |
Output is correct |
37 |
Correct |
246 ms |
4408 KB |
Output is correct |
38 |
Correct |
269 ms |
4188 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
1108 KB |
Output is correct |
2 |
Correct |
4 ms |
1056 KB |
Output is correct |
3 |
Correct |
5 ms |
1012 KB |
Output is correct |
4 |
Correct |
5 ms |
1060 KB |
Output is correct |
5 |
Correct |
5 ms |
1108 KB |
Output is correct |
6 |
Correct |
7 ms |
1108 KB |
Output is correct |
7 |
Correct |
6 ms |
1108 KB |
Output is correct |
8 |
Correct |
8 ms |
1108 KB |
Output is correct |
9 |
Correct |
7 ms |
1128 KB |
Output is correct |
10 |
Correct |
8 ms |
1124 KB |
Output is correct |
11 |
Correct |
6 ms |
1108 KB |
Output is correct |
12 |
Correct |
6 ms |
1028 KB |
Output is correct |
13 |
Correct |
6 ms |
1108 KB |
Output is correct |
14 |
Correct |
5 ms |
1108 KB |
Output is correct |
15 |
Correct |
6 ms |
1108 KB |
Output is correct |
16 |
Correct |
3 ms |
724 KB |
Output is correct |
17 |
Correct |
3 ms |
724 KB |
Output is correct |
18 |
Correct |
3 ms |
724 KB |
Output is correct |
19 |
Correct |
3 ms |
724 KB |
Output is correct |
20 |
Correct |
3 ms |
724 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
257 ms |
4228 KB |
Output is correct |
2 |
Correct |
241 ms |
4320 KB |
Output is correct |
3 |
Correct |
262 ms |
4232 KB |
Output is correct |
4 |
Correct |
237 ms |
4292 KB |
Output is correct |
5 |
Correct |
240 ms |
4300 KB |
Output is correct |
6 |
Correct |
168 ms |
4300 KB |
Output is correct |
7 |
Correct |
154 ms |
4300 KB |
Output is correct |
8 |
Correct |
160 ms |
4316 KB |
Output is correct |
9 |
Correct |
197 ms |
4220 KB |
Output is correct |
10 |
Correct |
161 ms |
4224 KB |
Output is correct |
11 |
Correct |
167 ms |
4220 KB |
Output is correct |
12 |
Correct |
208 ms |
4304 KB |
Output is correct |
13 |
Correct |
163 ms |
4316 KB |
Output is correct |
14 |
Correct |
153 ms |
4284 KB |
Output is correct |
15 |
Correct |
161 ms |
4228 KB |
Output is correct |
16 |
Correct |
51 ms |
972 KB |
Output is correct |
17 |
Correct |
44 ms |
1084 KB |
Output is correct |
18 |
Correct |
56 ms |
968 KB |
Output is correct |
19 |
Correct |
44 ms |
988 KB |
Output is correct |
20 |
Correct |
43 ms |
976 KB |
Output is correct |
21 |
Correct |
465 ms |
4112 KB |
Output is correct |
22 |
Correct |
428 ms |
3924 KB |
Output is correct |
23 |
Correct |
445 ms |
3888 KB |
Output is correct |
24 |
Correct |
419 ms |
3860 KB |
Output is correct |
25 |
Correct |
492 ms |
3892 KB |
Output is correct |
26 |
Correct |
666 ms |
3972 KB |
Output is correct |
27 |
Correct |
671 ms |
3904 KB |
Output is correct |
28 |
Correct |
657 ms |
3808 KB |
Output is correct |
29 |
Correct |
666 ms |
3740 KB |
Output is correct |
30 |
Correct |
170 ms |
4404 KB |
Output is correct |
31 |
Correct |
167 ms |
4312 KB |
Output is correct |
32 |
Correct |
165 ms |
4300 KB |
Output is correct |
33 |
Correct |
162 ms |
4216 KB |
Output is correct |
34 |
Correct |
184 ms |
4268 KB |
Output is correct |
35 |
Correct |
262 ms |
4220 KB |
Output is correct |
36 |
Correct |
243 ms |
4304 KB |
Output is correct |
37 |
Correct |
246 ms |
4408 KB |
Output is correct |
38 |
Correct |
269 ms |
4188 KB |
Output is correct |
39 |
Correct |
5 ms |
1108 KB |
Output is correct |
40 |
Correct |
4 ms |
1056 KB |
Output is correct |
41 |
Correct |
5 ms |
1012 KB |
Output is correct |
42 |
Correct |
5 ms |
1060 KB |
Output is correct |
43 |
Correct |
5 ms |
1108 KB |
Output is correct |
44 |
Correct |
7 ms |
1108 KB |
Output is correct |
45 |
Correct |
6 ms |
1108 KB |
Output is correct |
46 |
Correct |
8 ms |
1108 KB |
Output is correct |
47 |
Correct |
7 ms |
1128 KB |
Output is correct |
48 |
Correct |
8 ms |
1124 KB |
Output is correct |
49 |
Correct |
6 ms |
1108 KB |
Output is correct |
50 |
Correct |
6 ms |
1028 KB |
Output is correct |
51 |
Correct |
6 ms |
1108 KB |
Output is correct |
52 |
Correct |
5 ms |
1108 KB |
Output is correct |
53 |
Correct |
6 ms |
1108 KB |
Output is correct |
54 |
Correct |
3 ms |
724 KB |
Output is correct |
55 |
Correct |
3 ms |
724 KB |
Output is correct |
56 |
Correct |
3 ms |
724 KB |
Output is correct |
57 |
Correct |
3 ms |
724 KB |
Output is correct |
58 |
Correct |
3 ms |
724 KB |
Output is correct |
59 |
Correct |
520 ms |
4360 KB |
Output is correct |
60 |
Correct |
464 ms |
4272 KB |
Output is correct |
61 |
Correct |
480 ms |
4204 KB |
Output is correct |
62 |
Correct |
502 ms |
4228 KB |
Output is correct |
63 |
Correct |
478 ms |
4292 KB |
Output is correct |
64 |
Correct |
758 ms |
4300 KB |
Output is correct |
65 |
Correct |
736 ms |
4292 KB |
Output is correct |
66 |
Correct |
738 ms |
4548 KB |
Output is correct |
67 |
Correct |
732 ms |
4348 KB |
Output is correct |
68 |
Correct |
747 ms |
4304 KB |
Output is correct |
69 |
Correct |
546 ms |
4296 KB |
Output is correct |
70 |
Correct |
581 ms |
4224 KB |
Output is correct |
71 |
Correct |
590 ms |
4500 KB |
Output is correct |
72 |
Correct |
580 ms |
4256 KB |
Output is correct |
73 |
Correct |
563 ms |
4340 KB |
Output is correct |
74 |
Correct |
96 ms |
972 KB |
Output is correct |
75 |
Correct |
96 ms |
960 KB |
Output is correct |
76 |
Correct |
91 ms |
968 KB |
Output is correct |
77 |
Correct |
93 ms |
1036 KB |
Output is correct |
78 |
Correct |
99 ms |
1004 KB |
Output is correct |