| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 960121 |
2024-04-09T17:00:29 Z |
kim |
Boat (APIO16_boat) |
C++17 |
|
7 ms |
7516 KB |
#include<bits/stdc++.h>
using namespace std;
using ll=long long;
#define eb emplace_back
const ll md=1e9+7;
vector<int> comp;
int a[505],b[505];
ll dp[505][1005],qs[505][1005];
int main(){
ios::sync_with_stdio(false); cin.tie(0);
int n; cin>>n;
for(int i=1;i<=n;++i){
cin>>a[i]>>b[i];
comp.eb(--a[i]), comp.eb(b[i]);
}
comp.eb(0);
sort(comp.begin(),comp.end());
comp.erase(unique(comp.begin(),comp.end()),comp.end());
int m=comp.size();
dp[0][0]=1;
for(int i=0;i<m;++i) qs[0][i]=1;
for(int i=1;i<=n;++i){
a[i]=lower_bound(comp.begin(),comp.end(),a[i])-comp.begin();
b[i]=lower_bound(comp.begin(),comp.end(),b[i])-comp.begin();
qs[i][0]=1;
for(int j=1;j<m;++j){
if(a[i]<j&&j<=b[i]) dp[i][j]=((qs[i-1][j-1]*(comp[j]-comp[j-1]))%md+md)%md;
qs[i][j]=((dp[i][j]+qs[i-1][j]+qs[i][j-1]-qs[i-1][j-1])%md+md)%md;
}
}
cout<<(qs[n][m-1]+md-1)%md;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
6488 KB |
Output is correct |
| 2 |
Correct |
5 ms |
6488 KB |
Output is correct |
| 3 |
Correct |
6 ms |
6492 KB |
Output is correct |
| 4 |
Correct |
7 ms |
6492 KB |
Output is correct |
| 5 |
Correct |
7 ms |
6492 KB |
Output is correct |
| 6 |
Correct |
7 ms |
6504 KB |
Output is correct |
| 7 |
Correct |
6 ms |
6488 KB |
Output is correct |
| 8 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 9 |
Correct |
6 ms |
6436 KB |
Output is correct |
| 10 |
Correct |
5 ms |
6488 KB |
Output is correct |
| 11 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 12 |
Correct |
6 ms |
6424 KB |
Output is correct |
| 13 |
Correct |
6 ms |
6492 KB |
Output is correct |
| 14 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 15 |
Correct |
6 ms |
6492 KB |
Output is correct |
| 16 |
Correct |
3 ms |
6492 KB |
Output is correct |
| 17 |
Correct |
3 ms |
6488 KB |
Output is correct |
| 18 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 19 |
Correct |
4 ms |
6492 KB |
Output is correct |
| 20 |
Correct |
3 ms |
6492 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
6488 KB |
Output is correct |
| 2 |
Correct |
5 ms |
6488 KB |
Output is correct |
| 3 |
Correct |
6 ms |
6492 KB |
Output is correct |
| 4 |
Correct |
7 ms |
6492 KB |
Output is correct |
| 5 |
Correct |
7 ms |
6492 KB |
Output is correct |
| 6 |
Correct |
7 ms |
6504 KB |
Output is correct |
| 7 |
Correct |
6 ms |
6488 KB |
Output is correct |
| 8 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 9 |
Correct |
6 ms |
6436 KB |
Output is correct |
| 10 |
Correct |
5 ms |
6488 KB |
Output is correct |
| 11 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 12 |
Correct |
6 ms |
6424 KB |
Output is correct |
| 13 |
Correct |
6 ms |
6492 KB |
Output is correct |
| 14 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 15 |
Correct |
6 ms |
6492 KB |
Output is correct |
| 16 |
Correct |
3 ms |
6492 KB |
Output is correct |
| 17 |
Correct |
3 ms |
6488 KB |
Output is correct |
| 18 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 19 |
Correct |
4 ms |
6492 KB |
Output is correct |
| 20 |
Correct |
3 ms |
6492 KB |
Output is correct |
| 21 |
Incorrect |
6 ms |
7516 KB |
Output isn't correct |
| 22 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
4956 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
6488 KB |
Output is correct |
| 2 |
Correct |
5 ms |
6488 KB |
Output is correct |
| 3 |
Correct |
6 ms |
6492 KB |
Output is correct |
| 4 |
Correct |
7 ms |
6492 KB |
Output is correct |
| 5 |
Correct |
7 ms |
6492 KB |
Output is correct |
| 6 |
Correct |
7 ms |
6504 KB |
Output is correct |
| 7 |
Correct |
6 ms |
6488 KB |
Output is correct |
| 8 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 9 |
Correct |
6 ms |
6436 KB |
Output is correct |
| 10 |
Correct |
5 ms |
6488 KB |
Output is correct |
| 11 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 12 |
Correct |
6 ms |
6424 KB |
Output is correct |
| 13 |
Correct |
6 ms |
6492 KB |
Output is correct |
| 14 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 15 |
Correct |
6 ms |
6492 KB |
Output is correct |
| 16 |
Correct |
3 ms |
6492 KB |
Output is correct |
| 17 |
Correct |
3 ms |
6488 KB |
Output is correct |
| 18 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 19 |
Correct |
4 ms |
6492 KB |
Output is correct |
| 20 |
Correct |
3 ms |
6492 KB |
Output is correct |
| 21 |
Incorrect |
6 ms |
7516 KB |
Output isn't correct |
| 22 |
Halted |
0 ms |
0 KB |
- |
