| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1000121 |
2024-06-16T16:55:27 Z |
OAleksa |
Trains (BOI24_trains) |
C++14 |
|
2000 ms |
4724 KB |
#include <bits/stdc++.h>
#define f first
#define s second
#define int long long
using namespace std;
const int N = 2e5 + 69;
const int mod = 1e9 + 7;
int n, d[N], x[N], dp[N];
int add(int x, int y) {
x += y;
if (x >= mod)
x -= mod;
return x;
}
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int tt = 1;
//cin >> tt;
while (tt--) {
cin >> n;
for (int i = 1;i <= n;i++)
cin >> d[i] >> x[i];
dp[1] = 1;
for (int i = 1;i <= n;i++) {
if (d[i] == 0)
continue;
for (int j = i + d[i], j1 = 1;j <= n && j1 <= x[i];j += d[i], j1++)
dp[j] = add(dp[j], dp[i]);
}
int ans = 0;
for (int i = 1;i <= n;i++)
ans = add(ans, dp[i]);
cout << ans;
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 3 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 4 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 7 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 8 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 16 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 17 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 18 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 19 |
Correct |
1 ms |
4444 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 3 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 4 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 7 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 8 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 16 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 17 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 18 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 19 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 20 |
Correct |
3 ms |
4444 KB |
Output is correct |
| 21 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 22 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 23 |
Correct |
15 ms |
4616 KB |
Output is correct |
| 24 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 25 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 26 |
Correct |
9 ms |
4604 KB |
Output is correct |
| 27 |
Correct |
27 ms |
4444 KB |
Output is correct |
| 28 |
Correct |
9 ms |
4440 KB |
Output is correct |
| 29 |
Correct |
38 ms |
4444 KB |
Output is correct |
| 30 |
Correct |
2 ms |
4440 KB |
Output is correct |
| 31 |
Correct |
21 ms |
4644 KB |
Output is correct |
| 32 |
Correct |
44 ms |
4556 KB |
Output is correct |
| 33 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 34 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 35 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 36 |
Correct |
3 ms |
4444 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
14 ms |
4620 KB |
Output is correct |
| 3 |
Correct |
8 ms |
4440 KB |
Output is correct |
| 4 |
Correct |
27 ms |
4444 KB |
Output is correct |
| 5 |
Correct |
10 ms |
4708 KB |
Output is correct |
| 6 |
Execution timed out |
2050 ms |
4700 KB |
Time limit exceeded |
| 7 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
276 ms |
4696 KB |
Output is correct |
| 2 |
Correct |
189 ms |
4720 KB |
Output is correct |
| 3 |
Correct |
1668 ms |
4724 KB |
Output is correct |
| 4 |
Correct |
937 ms |
4720 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 7 |
Correct |
37 ms |
4444 KB |
Output is correct |
| 8 |
Execution timed out |
2045 ms |
4696 KB |
Time limit exceeded |
| 9 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 3 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 4 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 7 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 8 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 16 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 17 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 18 |
Correct |
0 ms |
4444 KB |
Output is correct |
| 19 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 20 |
Correct |
3 ms |
4444 KB |
Output is correct |
| 21 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 22 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 23 |
Correct |
15 ms |
4616 KB |
Output is correct |
| 24 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 25 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 26 |
Correct |
9 ms |
4604 KB |
Output is correct |
| 27 |
Correct |
27 ms |
4444 KB |
Output is correct |
| 28 |
Correct |
9 ms |
4440 KB |
Output is correct |
| 29 |
Correct |
38 ms |
4444 KB |
Output is correct |
| 30 |
Correct |
2 ms |
4440 KB |
Output is correct |
| 31 |
Correct |
21 ms |
4644 KB |
Output is correct |
| 32 |
Correct |
44 ms |
4556 KB |
Output is correct |
| 33 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 34 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 35 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 36 |
Correct |
3 ms |
4444 KB |
Output is correct |
| 37 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 38 |
Correct |
14 ms |
4620 KB |
Output is correct |
| 39 |
Correct |
8 ms |
4440 KB |
Output is correct |
| 40 |
Correct |
27 ms |
4444 KB |
Output is correct |
| 41 |
Correct |
10 ms |
4708 KB |
Output is correct |
| 42 |
Execution timed out |
2050 ms |
4700 KB |
Time limit exceeded |
| 43 |
Halted |
0 ms |
0 KB |
- |
