# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
994584 | 2024-06-08T01:57:29 Z | PenguinsAreCute | Trains (BOI24_trains) | C++17 | 297 ms | 247768 KB |
#include <bits/stdc++.h> using namespace std; #define int long long const int SQ = 313; const int MOD = 1e9 + 7; main() { int n; cin >> n; int d[n], x[n]; for(int i=0;i<n;i++) cin>>d[i]>>x[i]; int dp[n], pre[n][SQ]; for(int i=n;i--;) { dp[i]=1; if(d[i]>=SQ) for(int j=1;j<=x[i]&&i+j*d[i]<n;j++) {dp[i]+=dp[i+j*d[i]]; if(dp[i]>=MOD) dp[i]-=MOD;} else if(d[i]) { if(i+d[i]<n) dp[i]+=pre[i+d[i]][d[i]]; if(i+d[i]*(x[i]+1)<n) dp[i]-=pre[i+d[i]*(x[i]+1)][d[i]]; if(dp[i]>=MOD) dp[i]-=MOD; if(dp[i]<0) dp[i]+=MOD; } for(int j=1;j<SQ;j++) {pre[i][j]=dp[i]+(i+j<n?pre[i+j][j]:0); if(pre[i][j]>=MOD) pre[i][j]-=MOD;} } cout << dp[0]; }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 348 KB | Output is correct |
2 | Correct | 0 ms | 348 KB | Output is correct |
3 | Correct | 0 ms | 344 KB | Output is correct |
4 | Correct | 0 ms | 348 KB | Output is correct |
5 | Correct | 0 ms | 348 KB | Output is correct |
6 | Correct | 1 ms | 344 KB | Output is correct |
7 | Correct | 0 ms | 348 KB | Output is correct |
8 | Correct | 0 ms | 348 KB | Output is correct |
9 | Correct | 0 ms | 348 KB | Output is correct |
10 | Correct | 0 ms | 348 KB | Output is correct |
11 | Correct | 0 ms | 348 KB | Output is correct |
12 | Correct | 1 ms | 348 KB | Output is correct |
13 | Correct | 0 ms | 348 KB | Output is correct |
14 | Correct | 0 ms | 348 KB | Output is correct |
15 | Correct | 0 ms | 348 KB | Output is correct |
16 | Correct | 0 ms | 348 KB | Output is correct |
17 | Correct | 0 ms | 348 KB | Output is correct |
18 | Correct | 0 ms | 348 KB | Output is correct |
19 | Correct | 0 ms | 348 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 348 KB | Output is correct |
2 | Correct | 0 ms | 348 KB | Output is correct |
3 | Correct | 0 ms | 344 KB | Output is correct |
4 | Correct | 0 ms | 348 KB | Output is correct |
5 | Correct | 0 ms | 348 KB | Output is correct |
6 | Correct | 1 ms | 344 KB | Output is correct |
7 | Correct | 0 ms | 348 KB | Output is correct |
8 | Correct | 0 ms | 348 KB | Output is correct |
9 | Correct | 0 ms | 348 KB | Output is correct |
10 | Correct | 0 ms | 348 KB | Output is correct |
11 | Correct | 0 ms | 348 KB | Output is correct |
12 | Correct | 1 ms | 348 KB | Output is correct |
13 | Correct | 0 ms | 348 KB | Output is correct |
14 | Correct | 0 ms | 348 KB | Output is correct |
15 | Correct | 0 ms | 348 KB | Output is correct |
16 | Correct | 0 ms | 348 KB | Output is correct |
17 | Correct | 0 ms | 348 KB | Output is correct |
18 | Correct | 0 ms | 348 KB | Output is correct |
19 | Correct | 0 ms | 348 KB | Output is correct |
20 | Correct | 22 ms | 20828 KB | Output is correct |
21 | Correct | 6 ms | 7772 KB | Output is correct |
22 | Correct | 19 ms | 25160 KB | Output is correct |
23 | Correct | 17 ms | 16436 KB | Output is correct |
24 | Correct | 8 ms | 10356 KB | Output is correct |
25 | Correct | 23 ms | 22564 KB | Output is correct |
26 | Correct | 12 ms | 11608 KB | Output is correct |
27 | Correct | 20 ms | 21552 KB | Output is correct |
28 | Correct | 27 ms | 24924 KB | Output is correct |
29 | Correct | 27 ms | 24920 KB | Output is correct |
30 | Correct | 24 ms | 24924 KB | Output is correct |
31 | Correct | 28 ms | 24924 KB | Output is correct |
32 | Correct | 30 ms | 25156 KB | Output is correct |
33 | Correct | 25 ms | 25048 KB | Output is correct |
34 | Correct | 19 ms | 24924 KB | Output is correct |
35 | Correct | 21 ms | 24940 KB | Output is correct |
36 | Correct | 25 ms | 24960 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 356 KB | Output is correct |
2 | Correct | 17 ms | 16220 KB | Output is correct |
3 | Correct | 11 ms | 11356 KB | Output is correct |
4 | Correct | 23 ms | 21336 KB | Output is correct |
5 | Correct | 197 ms | 191512 KB | Output is correct |
6 | Correct | 263 ms | 247632 KB | Output is correct |
7 | Correct | 258 ms | 247672 KB | Output is correct |
8 | Correct | 1 ms | 348 KB | Output is correct |
9 | Correct | 0 ms | 348 KB | Output is correct |
10 | Correct | 0 ms | 348 KB | Output is correct |
11 | Correct | 26 ms | 25164 KB | Output is correct |
12 | Correct | 269 ms | 247744 KB | Output is correct |
13 | Correct | 0 ms | 348 KB | Output is correct |
14 | Correct | 27 ms | 24924 KB | Output is correct |
15 | Correct | 264 ms | 247768 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 128 ms | 119448 KB | Output is correct |
2 | Correct | 110 ms | 99152 KB | Output is correct |
3 | Correct | 260 ms | 247604 KB | Output is correct |
4 | Correct | 192 ms | 177492 KB | Output is correct |
5 | Correct | 0 ms | 344 KB | Output is correct |
6 | Correct | 0 ms | 348 KB | Output is correct |
7 | Correct | 27 ms | 24924 KB | Output is correct |
8 | Correct | 267 ms | 247632 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 348 KB | Output is correct |
2 | Correct | 0 ms | 348 KB | Output is correct |
3 | Correct | 0 ms | 344 KB | Output is correct |
4 | Correct | 0 ms | 348 KB | Output is correct |
5 | Correct | 0 ms | 348 KB | Output is correct |
6 | Correct | 1 ms | 344 KB | Output is correct |
7 | Correct | 0 ms | 348 KB | Output is correct |
8 | Correct | 0 ms | 348 KB | Output is correct |
9 | Correct | 0 ms | 348 KB | Output is correct |
10 | Correct | 0 ms | 348 KB | Output is correct |
11 | Correct | 0 ms | 348 KB | Output is correct |
12 | Correct | 1 ms | 348 KB | Output is correct |
13 | Correct | 0 ms | 348 KB | Output is correct |
14 | Correct | 0 ms | 348 KB | Output is correct |
15 | Correct | 0 ms | 348 KB | Output is correct |
16 | Correct | 0 ms | 348 KB | Output is correct |
17 | Correct | 0 ms | 348 KB | Output is correct |
18 | Correct | 0 ms | 348 KB | Output is correct |
19 | Correct | 0 ms | 348 KB | Output is correct |
20 | Correct | 22 ms | 20828 KB | Output is correct |
21 | Correct | 6 ms | 7772 KB | Output is correct |
22 | Correct | 19 ms | 25160 KB | Output is correct |
23 | Correct | 17 ms | 16436 KB | Output is correct |
24 | Correct | 8 ms | 10356 KB | Output is correct |
25 | Correct | 23 ms | 22564 KB | Output is correct |
26 | Correct | 12 ms | 11608 KB | Output is correct |
27 | Correct | 20 ms | 21552 KB | Output is correct |
28 | Correct | 27 ms | 24924 KB | Output is correct |
29 | Correct | 27 ms | 24920 KB | Output is correct |
30 | Correct | 24 ms | 24924 KB | Output is correct |
31 | Correct | 28 ms | 24924 KB | Output is correct |
32 | Correct | 30 ms | 25156 KB | Output is correct |
33 | Correct | 25 ms | 25048 KB | Output is correct |
34 | Correct | 19 ms | 24924 KB | Output is correct |
35 | Correct | 21 ms | 24940 KB | Output is correct |
36 | Correct | 25 ms | 24960 KB | Output is correct |
37 | Correct | 1 ms | 356 KB | Output is correct |
38 | Correct | 17 ms | 16220 KB | Output is correct |
39 | Correct | 11 ms | 11356 KB | Output is correct |
40 | Correct | 23 ms | 21336 KB | Output is correct |
41 | Correct | 197 ms | 191512 KB | Output is correct |
42 | Correct | 263 ms | 247632 KB | Output is correct |
43 | Correct | 258 ms | 247672 KB | Output is correct |
44 | Correct | 1 ms | 348 KB | Output is correct |
45 | Correct | 0 ms | 348 KB | Output is correct |
46 | Correct | 0 ms | 348 KB | Output is correct |
47 | Correct | 26 ms | 25164 KB | Output is correct |
48 | Correct | 269 ms | 247744 KB | Output is correct |
49 | Correct | 0 ms | 348 KB | Output is correct |
50 | Correct | 27 ms | 24924 KB | Output is correct |
51 | Correct | 264 ms | 247768 KB | Output is correct |
52 | Correct | 128 ms | 119448 KB | Output is correct |
53 | Correct | 110 ms | 99152 KB | Output is correct |
54 | Correct | 260 ms | 247604 KB | Output is correct |
55 | Correct | 192 ms | 177492 KB | Output is correct |
56 | Correct | 0 ms | 344 KB | Output is correct |
57 | Correct | 0 ms | 348 KB | Output is correct |
58 | Correct | 27 ms | 24924 KB | Output is correct |
59 | Correct | 267 ms | 247632 KB | Output is correct |
60 | Correct | 221 ms | 206416 KB | Output is correct |
61 | Correct | 261 ms | 247748 KB | Output is correct |
62 | Correct | 255 ms | 247560 KB | Output is correct |
63 | Correct | 257 ms | 247744 KB | Output is correct |
64 | Correct | 216 ms | 247636 KB | Output is correct |
65 | Correct | 297 ms | 247748 KB | Output is correct |
66 | Correct | 251 ms | 247632 KB | Output is correct |
67 | Correct | 210 ms | 247760 KB | Output is correct |
68 | Correct | 240 ms | 247596 KB | Output is correct |
69 | Correct | 271 ms | 247632 KB | Output is correct |
70 | Correct | 199 ms | 247636 KB | Output is correct |
71 | Correct | 200 ms | 247636 KB | Output is correct |
72 | Correct | 263 ms | 247632 KB | Output is correct |