| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 392126 |
2021-04-20T14:21:45 Z |
soroush |
Boat (APIO16_boat) |
C++17 |
|
579 ms |
4428 KB |
//曇り空 のぞいた予感
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int , int> pii;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int maxn = 1010;
const ll mod = 1e9+7;
#define pb push_back
#define endl '\n'
#define dokme(x) cout << x , exit(0)
#define ms(x , y) memset(x , y , sizeof x)
ll pw(ll a, ll b, ll md = mod){ll res = 1;while(b){if(b&1){res=(a*res)%md;}a=(a*a)%md;b>>=1;}return(res);}
vector < int > vec;
int n , m , inv[maxn];
int l[maxn] , r[maxn];
int dp[maxn][maxn*2];
int ans;
int32_t main(){
ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
for(int i = 1 ; i < maxn ; i ++)inv[i] = pw(i , mod - 2);
cin >> n;
for(int i = 1 ; i <= n ; i ++)
cin >> l[i] >> r[i] , r[i]++ , vec.pb(l[i]) , vec.pb(r[i]);
sort(vec.begin() , vec.end());
vec.resize(unique(vec.begin() , vec.end()) - vec.begin());
m = vec.size();
for(int i = 0 ; i < m ; i ++)dp[0][i] = 1;
for(int i = 1 ; i <= n ; i ++)
l[i] = lower_bound(vec.begin() , vec.end() , l[i])-vec.begin()+1,
r[i] = lower_bound(vec.begin() , vec.end() , r[i])-vec.begin()+1;
for(int i = 1 ; i <= n ; i ++){
for(int j = l[i] ; j < r[i] ; j ++){
ll C = vec[j]-vec[j-1];
ll x = vec[j]-vec[j-1], y = 1;
for(int k = i-1 ; k >= 0 ; k --){
dp[i][j] = (dp[i][j] + (dp[k][j-1] * 1ll * C)%mod)%mod;
if(l[k] <= j and j < r[k]){
x++ , ++y;
C = (C * ((x * inv[y])%mod))%mod;
}
}
}
for(int j = 0 ; j < m ; j ++)dp[i][j] = (dp[i][j] + dp[i][j-1])%mod;
ans = (ans + dp[i][m-1])%mod;
}
cout << ans;
return(0);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 3 |
Correct |
8 ms |
4312 KB |
Output is correct |
| 4 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 5 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 6 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 7 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 8 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 9 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 10 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 11 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 12 |
Correct |
8 ms |
4264 KB |
Output is correct |
| 13 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 14 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 15 |
Correct |
8 ms |
4228 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2636 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 3 |
Correct |
8 ms |
4312 KB |
Output is correct |
| 4 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 5 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 6 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 7 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 8 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 9 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 10 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 11 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 12 |
Correct |
8 ms |
4264 KB |
Output is correct |
| 13 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 14 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 15 |
Correct |
8 ms |
4228 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 21 |
Correct |
330 ms |
4128 KB |
Output is correct |
| 22 |
Correct |
331 ms |
4088 KB |
Output is correct |
| 23 |
Correct |
298 ms |
4044 KB |
Output is correct |
| 24 |
Correct |
350 ms |
3996 KB |
Output is correct |
| 25 |
Correct |
316 ms |
4284 KB |
Output is correct |
| 26 |
Correct |
490 ms |
4012 KB |
Output is correct |
| 27 |
Correct |
500 ms |
4036 KB |
Output is correct |
| 28 |
Correct |
492 ms |
4036 KB |
Output is correct |
| 29 |
Correct |
523 ms |
4036 KB |
Output is correct |
| 30 |
Correct |
9 ms |
4304 KB |
Output is correct |
| 31 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 32 |
Correct |
9 ms |
4304 KB |
Output is correct |
| 33 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 34 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 35 |
Correct |
10 ms |
4428 KB |
Output is correct |
| 36 |
Correct |
11 ms |
4284 KB |
Output is correct |
| 37 |
Correct |
10 ms |
4208 KB |
Output is correct |
| 38 |
Correct |
10 ms |
4300 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
716 KB |
Output is correct |
| 2 |
Correct |
4 ms |
716 KB |
Output is correct |
| 3 |
Correct |
4 ms |
716 KB |
Output is correct |
| 4 |
Correct |
4 ms |
716 KB |
Output is correct |
| 5 |
Correct |
4 ms |
716 KB |
Output is correct |
| 6 |
Correct |
6 ms |
716 KB |
Output is correct |
| 7 |
Correct |
6 ms |
716 KB |
Output is correct |
| 8 |
Correct |
6 ms |
716 KB |
Output is correct |
| 9 |
Correct |
6 ms |
716 KB |
Output is correct |
| 10 |
Correct |
6 ms |
716 KB |
Output is correct |
| 11 |
Correct |
4 ms |
716 KB |
Output is correct |
| 12 |
Correct |
3 ms |
716 KB |
Output is correct |
| 13 |
Correct |
4 ms |
716 KB |
Output is correct |
| 14 |
Correct |
3 ms |
716 KB |
Output is correct |
| 15 |
Correct |
4 ms |
716 KB |
Output is correct |
| 16 |
Correct |
3 ms |
716 KB |
Output is correct |
| 17 |
Correct |
3 ms |
716 KB |
Output is correct |
| 18 |
Correct |
3 ms |
716 KB |
Output is correct |
| 19 |
Correct |
3 ms |
716 KB |
Output is correct |
| 20 |
Correct |
3 ms |
720 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 3 |
Correct |
8 ms |
4312 KB |
Output is correct |
| 4 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 5 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 6 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 7 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 8 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 9 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 10 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 11 |
Correct |
8 ms |
4300 KB |
Output is correct |
| 12 |
Correct |
8 ms |
4264 KB |
Output is correct |
| 13 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 14 |
Correct |
8 ms |
4316 KB |
Output is correct |
| 15 |
Correct |
8 ms |
4228 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2636 KB |
Output is correct |
| 21 |
Correct |
330 ms |
4128 KB |
Output is correct |
| 22 |
Correct |
331 ms |
4088 KB |
Output is correct |
| 23 |
Correct |
298 ms |
4044 KB |
Output is correct |
| 24 |
Correct |
350 ms |
3996 KB |
Output is correct |
| 25 |
Correct |
316 ms |
4284 KB |
Output is correct |
| 26 |
Correct |
490 ms |
4012 KB |
Output is correct |
| 27 |
Correct |
500 ms |
4036 KB |
Output is correct |
| 28 |
Correct |
492 ms |
4036 KB |
Output is correct |
| 29 |
Correct |
523 ms |
4036 KB |
Output is correct |
| 30 |
Correct |
9 ms |
4304 KB |
Output is correct |
| 31 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 32 |
Correct |
9 ms |
4304 KB |
Output is correct |
| 33 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 34 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 35 |
Correct |
10 ms |
4428 KB |
Output is correct |
| 36 |
Correct |
11 ms |
4284 KB |
Output is correct |
| 37 |
Correct |
10 ms |
4208 KB |
Output is correct |
| 38 |
Correct |
10 ms |
4300 KB |
Output is correct |
| 39 |
Correct |
4 ms |
716 KB |
Output is correct |
| 40 |
Correct |
4 ms |
716 KB |
Output is correct |
| 41 |
Correct |
4 ms |
716 KB |
Output is correct |
| 42 |
Correct |
4 ms |
716 KB |
Output is correct |
| 43 |
Correct |
4 ms |
716 KB |
Output is correct |
| 44 |
Correct |
6 ms |
716 KB |
Output is correct |
| 45 |
Correct |
6 ms |
716 KB |
Output is correct |
| 46 |
Correct |
6 ms |
716 KB |
Output is correct |
| 47 |
Correct |
6 ms |
716 KB |
Output is correct |
| 48 |
Correct |
6 ms |
716 KB |
Output is correct |
| 49 |
Correct |
4 ms |
716 KB |
Output is correct |
| 50 |
Correct |
3 ms |
716 KB |
Output is correct |
| 51 |
Correct |
4 ms |
716 KB |
Output is correct |
| 52 |
Correct |
3 ms |
716 KB |
Output is correct |
| 53 |
Correct |
4 ms |
716 KB |
Output is correct |
| 54 |
Correct |
3 ms |
716 KB |
Output is correct |
| 55 |
Correct |
3 ms |
716 KB |
Output is correct |
| 56 |
Correct |
3 ms |
716 KB |
Output is correct |
| 57 |
Correct |
3 ms |
716 KB |
Output is correct |
| 58 |
Correct |
3 ms |
720 KB |
Output is correct |
| 59 |
Correct |
357 ms |
4236 KB |
Output is correct |
| 60 |
Correct |
342 ms |
4192 KB |
Output is correct |
| 61 |
Correct |
315 ms |
4192 KB |
Output is correct |
| 62 |
Correct |
365 ms |
4308 KB |
Output is correct |
| 63 |
Correct |
345 ms |
4292 KB |
Output is correct |
| 64 |
Correct |
562 ms |
4372 KB |
Output is correct |
| 65 |
Correct |
569 ms |
4244 KB |
Output is correct |
| 66 |
Correct |
579 ms |
4388 KB |
Output is correct |
| 67 |
Correct |
560 ms |
4320 KB |
Output is correct |
| 68 |
Correct |
576 ms |
4356 KB |
Output is correct |
| 69 |
Correct |
280 ms |
4292 KB |
Output is correct |
| 70 |
Correct |
277 ms |
4332 KB |
Output is correct |
| 71 |
Correct |
277 ms |
4296 KB |
Output is correct |
| 72 |
Correct |
291 ms |
4292 KB |
Output is correct |
| 73 |
Correct |
292 ms |
4200 KB |
Output is correct |
| 74 |
Correct |
74 ms |
2696 KB |
Output is correct |
| 75 |
Correct |
70 ms |
2632 KB |
Output is correct |
| 76 |
Correct |
76 ms |
2772 KB |
Output is correct |
| 77 |
Correct |
75 ms |
2632 KB |
Output is correct |
| 78 |
Correct |
75 ms |
2692 KB |
Output is correct |
