# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
771715 | 2023-07-03T08:20:44 Z | Amylopectin | Kangaroo (CEOI16_kangaroo) | C++14 | 20 ms | 24004 KB |
#include <stdio.h> #include <iostream> using namespace std; const long long mxn = 3e3 + 10,mo = 1e9 + 7; long long dp[mxn][mxn] = {}; int main() { long long i,j,n,m,stt,enn,cap,cou = 0; scanf("%lld %lld %lld",&n,&stt,&enn); dp[0][0] = 1; cap = n/2 + 2; for(i=1; i<=n; i++) { if(i == stt || i == enn) { cou ++; for(j=0; j<=cap; j++) { dp[i][j+1] += dp[i-1][j]; dp[i][j+1] %= mo; dp[i][j] += dp[i-1][j]; dp[i][j] %= mo; } continue; } for(j=0; j<=cap; j++) { // if(j > 0) dp[i][j] += dp[i-1][j+1] * (j); dp[i][j] %= mo; if(j+1-cou >= 0) dp[i][j+1] += dp[i-1][j] * (j+1-cou); dp[i][j+1] %= mo; } } printf("%lld\n",dp[n][1]); return 0; }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 212 KB | Output is correct |
2 | Correct | 0 ms | 340 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 212 KB | Output is correct |
2 | Correct | 0 ms | 340 KB | Output is correct |
3 | Correct | 0 ms | 340 KB | Output is correct |
4 | Correct | 0 ms | 468 KB | Output is correct |
5 | Correct | 0 ms | 468 KB | Output is correct |
6 | Correct | 0 ms | 468 KB | Output is correct |
7 | Correct | 0 ms | 468 KB | Output is correct |
8 | Correct | 0 ms | 468 KB | Output is correct |
9 | Correct | 1 ms | 468 KB | Output is correct |
10 | Correct | 0 ms | 468 KB | Output is correct |
11 | Correct | 0 ms | 468 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 212 KB | Output is correct |
2 | Correct | 0 ms | 340 KB | Output is correct |
3 | Correct | 0 ms | 340 KB | Output is correct |
4 | Correct | 0 ms | 468 KB | Output is correct |
5 | Correct | 0 ms | 468 KB | Output is correct |
6 | Correct | 0 ms | 468 KB | Output is correct |
7 | Correct | 0 ms | 468 KB | Output is correct |
8 | Correct | 0 ms | 468 KB | Output is correct |
9 | Correct | 1 ms | 468 KB | Output is correct |
10 | Correct | 0 ms | 468 KB | Output is correct |
11 | Correct | 0 ms | 468 KB | Output is correct |
12 | Correct | 1 ms | 1236 KB | Output is correct |
13 | Correct | 1 ms | 1108 KB | Output is correct |
14 | Correct | 1 ms | 1236 KB | Output is correct |
15 | Correct | 1 ms | 1236 KB | Output is correct |
16 | Correct | 1 ms | 1236 KB | Output is correct |
17 | Correct | 1 ms | 1236 KB | Output is correct |
18 | Correct | 1 ms | 1108 KB | Output is correct |
19 | Correct | 1 ms | 1236 KB | Output is correct |
20 | Correct | 1 ms | 1236 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 212 KB | Output is correct |
2 | Correct | 0 ms | 340 KB | Output is correct |
3 | Correct | 0 ms | 340 KB | Output is correct |
4 | Correct | 0 ms | 468 KB | Output is correct |
5 | Correct | 0 ms | 468 KB | Output is correct |
6 | Correct | 0 ms | 468 KB | Output is correct |
7 | Correct | 0 ms | 468 KB | Output is correct |
8 | Correct | 0 ms | 468 KB | Output is correct |
9 | Correct | 1 ms | 468 KB | Output is correct |
10 | Correct | 0 ms | 468 KB | Output is correct |
11 | Correct | 0 ms | 468 KB | Output is correct |
12 | Correct | 1 ms | 1236 KB | Output is correct |
13 | Correct | 1 ms | 1108 KB | Output is correct |
14 | Correct | 1 ms | 1236 KB | Output is correct |
15 | Correct | 1 ms | 1236 KB | Output is correct |
16 | Correct | 1 ms | 1236 KB | Output is correct |
17 | Correct | 1 ms | 1236 KB | Output is correct |
18 | Correct | 1 ms | 1108 KB | Output is correct |
19 | Correct | 1 ms | 1236 KB | Output is correct |
20 | Correct | 1 ms | 1236 KB | Output is correct |
21 | Correct | 3 ms | 4564 KB | Output is correct |
22 | Correct | 3 ms | 4948 KB | Output is correct |
23 | Correct | 4 ms | 5588 KB | Output is correct |
24 | Correct | 19 ms | 23948 KB | Output is correct |
25 | Correct | 19 ms | 24004 KB | Output is correct |
26 | Correct | 20 ms | 23948 KB | Output is correct |
27 | Correct | 19 ms | 23816 KB | Output is correct |
28 | Correct | 11 ms | 15060 KB | Output is correct |