#include <bits/stdc++.h>
#define chmax(x, v) x = max(x, v)
#define pii pair<int, int>
#define pb push_back
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define int long long
using namespace std;
const int N = 105, MOD = 1e9 + 7, INDEFINI = -1;
signed main(){
int nBoats;
cin >> nBoats;
vector<int> vals(nBoats);
for (int& val : vals){
cin >> val;
cin >> val;
}
int nVals = nBoats;
int dp[nVals];
dp[0] = 1;
int sum = 1;
for (int ind = 1; ind < nVals; ++ind){
dp[ind] = 1;
for (int j = 0; j < ind; ++j){
if (vals[j] < vals[ind])
dp[ind] = (dp[ind] + dp[j])%MOD;
}
sum = (sum + dp[ind])%MOD;
}
cout << sum << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
2 ms |
204 KB |
Output is correct |
7 |
Correct |
3 ms |
252 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
2 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
2 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
2 ms |
204 KB |
Output is correct |
14 |
Correct |
2 ms |
204 KB |
Output is correct |
15 |
Correct |
2 ms |
204 KB |
Output is correct |
16 |
Correct |
2 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
204 KB |
Output is correct |
18 |
Correct |
2 ms |
204 KB |
Output is correct |
19 |
Correct |
2 ms |
204 KB |
Output is correct |
20 |
Correct |
2 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
2 ms |
204 KB |
Output is correct |
7 |
Correct |
3 ms |
252 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
2 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
2 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
2 ms |
204 KB |
Output is correct |
14 |
Correct |
2 ms |
204 KB |
Output is correct |
15 |
Correct |
2 ms |
204 KB |
Output is correct |
16 |
Correct |
2 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
204 KB |
Output is correct |
18 |
Correct |
2 ms |
204 KB |
Output is correct |
19 |
Correct |
2 ms |
204 KB |
Output is correct |
20 |
Correct |
2 ms |
204 KB |
Output is correct |
21 |
Incorrect |
2 ms |
204 KB |
Output isn't correct |
22 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
2 ms |
204 KB |
Output is correct |
7 |
Correct |
3 ms |
252 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
2 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
2 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
2 ms |
204 KB |
Output is correct |
14 |
Correct |
2 ms |
204 KB |
Output is correct |
15 |
Correct |
2 ms |
204 KB |
Output is correct |
16 |
Correct |
2 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
204 KB |
Output is correct |
18 |
Correct |
2 ms |
204 KB |
Output is correct |
19 |
Correct |
2 ms |
204 KB |
Output is correct |
20 |
Correct |
2 ms |
204 KB |
Output is correct |
21 |
Incorrect |
2 ms |
204 KB |
Output isn't correct |
22 |
Halted |
0 ms |
0 KB |
- |