| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 859921 |
2023-10-11T07:30:54 Z |
bliss08 |
Boat (APIO16_boat) |
C++17 |
|
480 ms |
4692 KB |
#include <bits/stdc++.h>
#define ll long long
#define MOD (ll)(1e9 + 7)
using namespace std;
ll lo[1020], hi[1020];
ll A[510], B[510], baser[510];
ll dp[510][1020];
ll cnt, tot, N;
void add_mod(ll& ret, ll params)
{
ret += params;
ret %= MOD;
}
void mul_mod(ll& ret, ll params)
{
ret *= params;
ret %= MOD;
}
void sub_mod(ll& ret, ll params)
{
ret = (ret - params + MOD) % MOD;
}
void precomp()
{
baser[1] = 1;
for (ll i = 2; i <= N; i++)
{
baser[i] = MOD - (MOD / i);
mul_mod(baser[i], baser[MOD % i]);
}
stable_sort(hi + 1, hi + cnt + 1);
cnt = unique(hi + 1, hi + cnt + 1) - hi;
for (ll i = 1; i <= N; i++)
{
A[i] = lower_bound(hi + 1, hi + cnt, A[i]) - hi;
B[i] = lower_bound(hi + 1, hi + cnt, B[i]) - hi;
}
cnt -= 2;
for (ll i = 1; i <= cnt; i++)
{
lo[i] = hi[i + 1];
sub_mod(lo[i], hi[i]);
}
}
void solve()
{
for (ll i = 0; i <= cnt; i++)
dp[0][i] = 1;
for (ll i = 1; i <= N; i++)
{
for (ll j = A[i], t = B[i]; j < t; j++)
{
ll C = lo[j], r = lo[j], inn = 1;
for (ll k = i - 1; k >= 0; k--)
{
ll tmp = dp[k][j - 1];
mul_mod(tmp, C);
add_mod(dp[i][j], tmp);
if (A[k] > j || j >= B[k])
continue;
r++, inn++;
tmp = C;
mul_mod(tmp, r);
mul_mod(tmp, baser[inn]);
C = tmp;
}
}
for (ll j = 2; j <= cnt; j++)
add_mod(dp[i][j], dp[i][j - 1]);
}
for (ll i = 1; i <= N; i++)
add_mod(tot, dp[i][cnt]);
}
int main()
{
cin >> N;
for (ll i = 1; i <= N; i++)
{
cin >> A[i] >> B[i];
hi[++cnt] = A[i];
hi[++cnt] = ++B[i];
}
precomp();
solve();
cout << tot;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
6 ms |
4296 KB |
Output is correct |
| 3 |
Correct |
6 ms |
4440 KB |
Output is correct |
| 4 |
Correct |
6 ms |
4292 KB |
Output is correct |
| 5 |
Correct |
6 ms |
4312 KB |
Output is correct |
| 6 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 7 |
Correct |
6 ms |
4440 KB |
Output is correct |
| 8 |
Correct |
6 ms |
4440 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 10 |
Correct |
6 ms |
4292 KB |
Output is correct |
| 11 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 12 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
6 ms |
4308 KB |
Output is correct |
| 15 |
Correct |
6 ms |
4316 KB |
Output is correct |
| 16 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 17 |
Correct |
3 ms |
3020 KB |
Output is correct |
| 18 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 19 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 20 |
Correct |
3 ms |
3164 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
6 ms |
4296 KB |
Output is correct |
| 3 |
Correct |
6 ms |
4440 KB |
Output is correct |
| 4 |
Correct |
6 ms |
4292 KB |
Output is correct |
| 5 |
Correct |
6 ms |
4312 KB |
Output is correct |
| 6 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 7 |
Correct |
6 ms |
4440 KB |
Output is correct |
| 8 |
Correct |
6 ms |
4440 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 10 |
Correct |
6 ms |
4292 KB |
Output is correct |
| 11 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 12 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
6 ms |
4308 KB |
Output is correct |
| 15 |
Correct |
6 ms |
4316 KB |
Output is correct |
| 16 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 17 |
Correct |
3 ms |
3020 KB |
Output is correct |
| 18 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 19 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 20 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 21 |
Correct |
220 ms |
4208 KB |
Output is correct |
| 22 |
Correct |
211 ms |
4396 KB |
Output is correct |
| 23 |
Correct |
191 ms |
4280 KB |
Output is correct |
| 24 |
Correct |
208 ms |
4436 KB |
Output is correct |
| 25 |
Correct |
212 ms |
4432 KB |
Output is correct |
| 26 |
Correct |
420 ms |
4456 KB |
Output is correct |
| 27 |
Correct |
430 ms |
4272 KB |
Output is correct |
| 28 |
Correct |
421 ms |
4340 KB |
Output is correct |
| 29 |
Correct |
413 ms |
4416 KB |
Output is correct |
| 30 |
Correct |
11 ms |
4444 KB |
Output is correct |
| 31 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 32 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 33 |
Correct |
7 ms |
4296 KB |
Output is correct |
| 34 |
Correct |
7 ms |
4340 KB |
Output is correct |
| 35 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 36 |
Correct |
7 ms |
4408 KB |
Output is correct |
| 37 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 38 |
Correct |
8 ms |
4444 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
860 KB |
Output is correct |
| 2 |
Correct |
2 ms |
952 KB |
Output is correct |
| 3 |
Correct |
2 ms |
860 KB |
Output is correct |
| 4 |
Correct |
3 ms |
860 KB |
Output is correct |
| 5 |
Correct |
3 ms |
992 KB |
Output is correct |
| 6 |
Correct |
4 ms |
856 KB |
Output is correct |
| 7 |
Correct |
4 ms |
860 KB |
Output is correct |
| 8 |
Correct |
5 ms |
860 KB |
Output is correct |
| 9 |
Correct |
5 ms |
860 KB |
Output is correct |
| 10 |
Correct |
4 ms |
860 KB |
Output is correct |
| 11 |
Correct |
2 ms |
956 KB |
Output is correct |
| 12 |
Correct |
2 ms |
864 KB |
Output is correct |
| 13 |
Correct |
2 ms |
872 KB |
Output is correct |
| 14 |
Correct |
3 ms |
872 KB |
Output is correct |
| 15 |
Correct |
3 ms |
984 KB |
Output is correct |
| 16 |
Correct |
2 ms |
872 KB |
Output is correct |
| 17 |
Correct |
2 ms |
972 KB |
Output is correct |
| 18 |
Correct |
2 ms |
872 KB |
Output is correct |
| 19 |
Correct |
2 ms |
968 KB |
Output is correct |
| 20 |
Correct |
2 ms |
872 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
6 ms |
4296 KB |
Output is correct |
| 3 |
Correct |
6 ms |
4440 KB |
Output is correct |
| 4 |
Correct |
6 ms |
4292 KB |
Output is correct |
| 5 |
Correct |
6 ms |
4312 KB |
Output is correct |
| 6 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 7 |
Correct |
6 ms |
4440 KB |
Output is correct |
| 8 |
Correct |
6 ms |
4440 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 10 |
Correct |
6 ms |
4292 KB |
Output is correct |
| 11 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 12 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
6 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
6 ms |
4308 KB |
Output is correct |
| 15 |
Correct |
6 ms |
4316 KB |
Output is correct |
| 16 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 17 |
Correct |
3 ms |
3020 KB |
Output is correct |
| 18 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 19 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 20 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 21 |
Correct |
220 ms |
4208 KB |
Output is correct |
| 22 |
Correct |
211 ms |
4396 KB |
Output is correct |
| 23 |
Correct |
191 ms |
4280 KB |
Output is correct |
| 24 |
Correct |
208 ms |
4436 KB |
Output is correct |
| 25 |
Correct |
212 ms |
4432 KB |
Output is correct |
| 26 |
Correct |
420 ms |
4456 KB |
Output is correct |
| 27 |
Correct |
430 ms |
4272 KB |
Output is correct |
| 28 |
Correct |
421 ms |
4340 KB |
Output is correct |
| 29 |
Correct |
413 ms |
4416 KB |
Output is correct |
| 30 |
Correct |
11 ms |
4444 KB |
Output is correct |
| 31 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 32 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 33 |
Correct |
7 ms |
4296 KB |
Output is correct |
| 34 |
Correct |
7 ms |
4340 KB |
Output is correct |
| 35 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 36 |
Correct |
7 ms |
4408 KB |
Output is correct |
| 37 |
Correct |
7 ms |
4444 KB |
Output is correct |
| 38 |
Correct |
8 ms |
4444 KB |
Output is correct |
| 39 |
Correct |
3 ms |
860 KB |
Output is correct |
| 40 |
Correct |
2 ms |
952 KB |
Output is correct |
| 41 |
Correct |
2 ms |
860 KB |
Output is correct |
| 42 |
Correct |
3 ms |
860 KB |
Output is correct |
| 43 |
Correct |
3 ms |
992 KB |
Output is correct |
| 44 |
Correct |
4 ms |
856 KB |
Output is correct |
| 45 |
Correct |
4 ms |
860 KB |
Output is correct |
| 46 |
Correct |
5 ms |
860 KB |
Output is correct |
| 47 |
Correct |
5 ms |
860 KB |
Output is correct |
| 48 |
Correct |
4 ms |
860 KB |
Output is correct |
| 49 |
Correct |
2 ms |
956 KB |
Output is correct |
| 50 |
Correct |
2 ms |
864 KB |
Output is correct |
| 51 |
Correct |
2 ms |
872 KB |
Output is correct |
| 52 |
Correct |
3 ms |
872 KB |
Output is correct |
| 53 |
Correct |
3 ms |
984 KB |
Output is correct |
| 54 |
Correct |
2 ms |
872 KB |
Output is correct |
| 55 |
Correct |
2 ms |
972 KB |
Output is correct |
| 56 |
Correct |
2 ms |
872 KB |
Output is correct |
| 57 |
Correct |
2 ms |
968 KB |
Output is correct |
| 58 |
Correct |
2 ms |
872 KB |
Output is correct |
| 59 |
Correct |
238 ms |
4348 KB |
Output is correct |
| 60 |
Correct |
234 ms |
4284 KB |
Output is correct |
| 61 |
Correct |
207 ms |
4432 KB |
Output is correct |
| 62 |
Correct |
239 ms |
4432 KB |
Output is correct |
| 63 |
Correct |
230 ms |
4352 KB |
Output is correct |
| 64 |
Correct |
477 ms |
4536 KB |
Output is correct |
| 65 |
Correct |
480 ms |
4692 KB |
Output is correct |
| 66 |
Correct |
478 ms |
4436 KB |
Output is correct |
| 67 |
Correct |
478 ms |
4616 KB |
Output is correct |
| 68 |
Correct |
480 ms |
4228 KB |
Output is correct |
| 69 |
Correct |
194 ms |
4448 KB |
Output is correct |
| 70 |
Correct |
191 ms |
4436 KB |
Output is correct |
| 71 |
Correct |
190 ms |
4436 KB |
Output is correct |
| 72 |
Correct |
201 ms |
4448 KB |
Output is correct |
| 73 |
Correct |
204 ms |
4440 KB |
Output is correct |
| 74 |
Correct |
49 ms |
3152 KB |
Output is correct |
| 75 |
Correct |
47 ms |
3156 KB |
Output is correct |
| 76 |
Correct |
51 ms |
3152 KB |
Output is correct |
| 77 |
Correct |
50 ms |
3156 KB |
Output is correct |
| 78 |
Correct |
52 ms |
3040 KB |
Output is correct |
