# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
1084762 |
2024-09-06T23:23:50 Z |
zxcigan |
Trains (BOI24_trains) |
C++17 |
|
207 ms |
11088 KB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define int long long
const int N = 2e5;
const int mod = 1e9 + 7;
const int B = 335;
int dp[N];
int32_t main() {
#ifdef LOCAL
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif // LOCAL
ios_base::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
dp[1] = 1;
int s = 0;
vector<vector<int>> add (B + 1, vector<int> (B + 1, 0));
multiset<array<int,4>> st;
for (int i = 1; i <= n; ++i) {
int x, d;
cin >> d >> x;
for (int j = 1; j < B; ++j) {
(dp[i] += add[j][i % j]) %= mod;
}
if (x && d) {
if (d >= B) {
for (int j = 1; j <= x; ++j) {
if (i + d * j > n) break;
(dp[i + d * j] += dp[i]) %= mod;
}
} else {
(add[d][i % d] += dp[i]) %= mod;
st.insert ({i + x * d, d, i % d, dp[i]});
}
}
while ((int)st.size() && (*st.begin())[0] == i) {
array<int,4> v = (*st.begin());
add[v[1]][v[2]] -= v[3];
if (add[v[1]][v[2]] < 0) add[v[1]][v[2]] += mod;
st.erase (st.begin());
}
(s += dp[i]) %= mod;
}
cout << s << '\n';
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1116 KB |
Output is correct |
2 |
Correct |
0 ms |
1116 KB |
Output is correct |
3 |
Correct |
1 ms |
1116 KB |
Output is correct |
4 |
Correct |
1 ms |
1116 KB |
Output is correct |
5 |
Correct |
1 ms |
1112 KB |
Output is correct |
6 |
Correct |
0 ms |
1116 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 KB |
Output is correct |
8 |
Correct |
1 ms |
1116 KB |
Output is correct |
9 |
Correct |
1 ms |
1116 KB |
Output is correct |
10 |
Correct |
1 ms |
1372 KB |
Output is correct |
11 |
Correct |
1 ms |
1116 KB |
Output is correct |
12 |
Correct |
1 ms |
1112 KB |
Output is correct |
13 |
Correct |
2 ms |
1112 KB |
Output is correct |
14 |
Correct |
1 ms |
1116 KB |
Output is correct |
15 |
Correct |
1 ms |
1116 KB |
Output is correct |
16 |
Correct |
1 ms |
1116 KB |
Output is correct |
17 |
Correct |
1 ms |
1116 KB |
Output is correct |
18 |
Correct |
1 ms |
1116 KB |
Output is correct |
19 |
Correct |
1 ms |
1116 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1116 KB |
Output is correct |
2 |
Correct |
0 ms |
1116 KB |
Output is correct |
3 |
Correct |
1 ms |
1116 KB |
Output is correct |
4 |
Correct |
1 ms |
1116 KB |
Output is correct |
5 |
Correct |
1 ms |
1112 KB |
Output is correct |
6 |
Correct |
0 ms |
1116 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 KB |
Output is correct |
8 |
Correct |
1 ms |
1116 KB |
Output is correct |
9 |
Correct |
1 ms |
1116 KB |
Output is correct |
10 |
Correct |
1 ms |
1372 KB |
Output is correct |
11 |
Correct |
1 ms |
1116 KB |
Output is correct |
12 |
Correct |
1 ms |
1112 KB |
Output is correct |
13 |
Correct |
2 ms |
1112 KB |
Output is correct |
14 |
Correct |
1 ms |
1116 KB |
Output is correct |
15 |
Correct |
1 ms |
1116 KB |
Output is correct |
16 |
Correct |
1 ms |
1116 KB |
Output is correct |
17 |
Correct |
1 ms |
1116 KB |
Output is correct |
18 |
Correct |
1 ms |
1116 KB |
Output is correct |
19 |
Correct |
1 ms |
1116 KB |
Output is correct |
20 |
Correct |
15 ms |
1628 KB |
Output is correct |
21 |
Correct |
5 ms |
1372 KB |
Output is correct |
22 |
Correct |
17 ms |
1628 KB |
Output is correct |
23 |
Correct |
12 ms |
1624 KB |
Output is correct |
24 |
Correct |
7 ms |
1468 KB |
Output is correct |
25 |
Correct |
19 ms |
2088 KB |
Output is correct |
26 |
Correct |
10 ms |
1628 KB |
Output is correct |
27 |
Correct |
16 ms |
2004 KB |
Output is correct |
28 |
Correct |
21 ms |
2140 KB |
Output is correct |
29 |
Correct |
18 ms |
2124 KB |
Output is correct |
30 |
Correct |
16 ms |
1372 KB |
Output is correct |
31 |
Correct |
18 ms |
1760 KB |
Output is correct |
32 |
Correct |
20 ms |
2140 KB |
Output is correct |
33 |
Correct |
18 ms |
1676 KB |
Output is correct |
34 |
Correct |
16 ms |
1372 KB |
Output is correct |
35 |
Correct |
15 ms |
1368 KB |
Output is correct |
36 |
Correct |
20 ms |
2140 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1112 KB |
Output is correct |
2 |
Correct |
12 ms |
1740 KB |
Output is correct |
3 |
Correct |
9 ms |
1584 KB |
Output is correct |
4 |
Correct |
16 ms |
1884 KB |
Output is correct |
5 |
Correct |
117 ms |
1872 KB |
Output is correct |
6 |
Correct |
170 ms |
9808 KB |
Output is correct |
7 |
Correct |
181 ms |
8964 KB |
Output is correct |
8 |
Correct |
1 ms |
1112 KB |
Output is correct |
9 |
Correct |
0 ms |
1116 KB |
Output is correct |
10 |
Correct |
1 ms |
1116 KB |
Output is correct |
11 |
Correct |
17 ms |
2084 KB |
Output is correct |
12 |
Correct |
179 ms |
9816 KB |
Output is correct |
13 |
Correct |
1 ms |
1112 KB |
Output is correct |
14 |
Correct |
20 ms |
2104 KB |
Output is correct |
15 |
Correct |
207 ms |
9808 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
87 ms |
5460 KB |
Output is correct |
2 |
Correct |
74 ms |
4564 KB |
Output is correct |
3 |
Correct |
180 ms |
10240 KB |
Output is correct |
4 |
Correct |
131 ms |
8272 KB |
Output is correct |
5 |
Correct |
1 ms |
1112 KB |
Output is correct |
6 |
Correct |
1 ms |
1116 KB |
Output is correct |
7 |
Correct |
19 ms |
2100 KB |
Output is correct |
8 |
Correct |
176 ms |
10616 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1116 KB |
Output is correct |
2 |
Correct |
0 ms |
1116 KB |
Output is correct |
3 |
Correct |
1 ms |
1116 KB |
Output is correct |
4 |
Correct |
1 ms |
1116 KB |
Output is correct |
5 |
Correct |
1 ms |
1112 KB |
Output is correct |
6 |
Correct |
0 ms |
1116 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 KB |
Output is correct |
8 |
Correct |
1 ms |
1116 KB |
Output is correct |
9 |
Correct |
1 ms |
1116 KB |
Output is correct |
10 |
Correct |
1 ms |
1372 KB |
Output is correct |
11 |
Correct |
1 ms |
1116 KB |
Output is correct |
12 |
Correct |
1 ms |
1112 KB |
Output is correct |
13 |
Correct |
2 ms |
1112 KB |
Output is correct |
14 |
Correct |
1 ms |
1116 KB |
Output is correct |
15 |
Correct |
1 ms |
1116 KB |
Output is correct |
16 |
Correct |
1 ms |
1116 KB |
Output is correct |
17 |
Correct |
1 ms |
1116 KB |
Output is correct |
18 |
Correct |
1 ms |
1116 KB |
Output is correct |
19 |
Correct |
1 ms |
1116 KB |
Output is correct |
20 |
Correct |
15 ms |
1628 KB |
Output is correct |
21 |
Correct |
5 ms |
1372 KB |
Output is correct |
22 |
Correct |
17 ms |
1628 KB |
Output is correct |
23 |
Correct |
12 ms |
1624 KB |
Output is correct |
24 |
Correct |
7 ms |
1468 KB |
Output is correct |
25 |
Correct |
19 ms |
2088 KB |
Output is correct |
26 |
Correct |
10 ms |
1628 KB |
Output is correct |
27 |
Correct |
16 ms |
2004 KB |
Output is correct |
28 |
Correct |
21 ms |
2140 KB |
Output is correct |
29 |
Correct |
18 ms |
2124 KB |
Output is correct |
30 |
Correct |
16 ms |
1372 KB |
Output is correct |
31 |
Correct |
18 ms |
1760 KB |
Output is correct |
32 |
Correct |
20 ms |
2140 KB |
Output is correct |
33 |
Correct |
18 ms |
1676 KB |
Output is correct |
34 |
Correct |
16 ms |
1372 KB |
Output is correct |
35 |
Correct |
15 ms |
1368 KB |
Output is correct |
36 |
Correct |
20 ms |
2140 KB |
Output is correct |
37 |
Correct |
1 ms |
1112 KB |
Output is correct |
38 |
Correct |
12 ms |
1740 KB |
Output is correct |
39 |
Correct |
9 ms |
1584 KB |
Output is correct |
40 |
Correct |
16 ms |
1884 KB |
Output is correct |
41 |
Correct |
117 ms |
1872 KB |
Output is correct |
42 |
Correct |
170 ms |
9808 KB |
Output is correct |
43 |
Correct |
181 ms |
8964 KB |
Output is correct |
44 |
Correct |
1 ms |
1112 KB |
Output is correct |
45 |
Correct |
0 ms |
1116 KB |
Output is correct |
46 |
Correct |
1 ms |
1116 KB |
Output is correct |
47 |
Correct |
17 ms |
2084 KB |
Output is correct |
48 |
Correct |
179 ms |
9816 KB |
Output is correct |
49 |
Correct |
1 ms |
1112 KB |
Output is correct |
50 |
Correct |
20 ms |
2104 KB |
Output is correct |
51 |
Correct |
207 ms |
9808 KB |
Output is correct |
52 |
Correct |
87 ms |
5460 KB |
Output is correct |
53 |
Correct |
74 ms |
4564 KB |
Output is correct |
54 |
Correct |
180 ms |
10240 KB |
Output is correct |
55 |
Correct |
131 ms |
8272 KB |
Output is correct |
56 |
Correct |
1 ms |
1112 KB |
Output is correct |
57 |
Correct |
1 ms |
1116 KB |
Output is correct |
58 |
Correct |
19 ms |
2100 KB |
Output is correct |
59 |
Correct |
176 ms |
10616 KB |
Output is correct |
60 |
Correct |
180 ms |
9300 KB |
Output is correct |
61 |
Correct |
192 ms |
10832 KB |
Output is correct |
62 |
Correct |
172 ms |
2956 KB |
Output is correct |
63 |
Correct |
196 ms |
10832 KB |
Output is correct |
64 |
Correct |
152 ms |
3920 KB |
Output is correct |
65 |
Correct |
176 ms |
5972 KB |
Output is correct |
66 |
Correct |
178 ms |
11088 KB |
Output is correct |
67 |
Correct |
153 ms |
3668 KB |
Output is correct |
68 |
Correct |
177 ms |
6992 KB |
Output is correct |
69 |
Correct |
185 ms |
4568 KB |
Output is correct |
70 |
Correct |
153 ms |
3160 KB |
Output is correct |
71 |
Correct |
150 ms |
2896 KB |
Output is correct |
72 |
Correct |
204 ms |
10576 KB |
Output is correct |