# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
316932 | 2020-10-28T15:52:32 Z | Kuuhaku | 캥거루 (CEOI16_kangaroo) | C++17 | 91 ms | 14200 KB |
#define tasknames "Kangaroo" #include <iostream> #include <stdio.h> using namespace std; const int maxn=2e3+2; int n, cs, cf, dp[maxn][maxn], mod=1e9+7; void Enter() { cin>>n>>cs>>cf; if(cs>cf)swap(cs,cf); dp[1][0]=1; for(int i=1;i<=n;i++) for(int j=0;j<=i;j++) { if(i==cs||i==cf) { dp[i+1][j]=(dp[i+1][j]+dp[i][j])%mod; if(j)dp[i+1][j-1]=(dp[i+1][j-1]+1ll*j*dp[i][j]%mod)%mod; } else { if(i>cf) dp[i+1][j-1]=(dp[i+1][j-1]+1ll*j*dp[i][j]%mod)%mod; if(i>cs) dp[i+1][j-1]=(dp[i+1][j-1]+1ll*j*dp[i][j]%mod)%mod; dp[i+1][j+1]=(dp[i+1][j+1]+dp[i][j])%mod; dp[i+1][j-1]=(dp[i+1][j-1]+1ll*j*(j-1)*dp[i][j]%mod)%mod; } } cout<<dp[n][0]; } int main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); if(fopen(tasknames".INP","r")) { freopen(tasknames".INP","r",stdin); freopen(tasknames".OUT","w",stdout); } Enter(); }
Compilation message
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 384 KB | Output is correct |
2 | Correct | 0 ms | 384 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 384 KB | Output is correct |
2 | Correct | 0 ms | 384 KB | Output is correct |
3 | Correct | 1 ms | 384 KB | Output is correct |
4 | Correct | 1 ms | 512 KB | Output is correct |
5 | Correct | 1 ms | 512 KB | Output is correct |
6 | Correct | 1 ms | 512 KB | Output is correct |
7 | Correct | 1 ms | 512 KB | Output is correct |
8 | Correct | 1 ms | 512 KB | Output is correct |
9 | Correct | 1 ms | 512 KB | Output is correct |
10 | Correct | 1 ms | 512 KB | Output is correct |
11 | Correct | 1 ms | 512 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 384 KB | Output is correct |
2 | Correct | 0 ms | 384 KB | Output is correct |
3 | Correct | 1 ms | 384 KB | Output is correct |
4 | Correct | 1 ms | 512 KB | Output is correct |
5 | Correct | 1 ms | 512 KB | Output is correct |
6 | Correct | 1 ms | 512 KB | Output is correct |
7 | Correct | 1 ms | 512 KB | Output is correct |
8 | Correct | 1 ms | 512 KB | Output is correct |
9 | Correct | 1 ms | 512 KB | Output is correct |
10 | Correct | 1 ms | 512 KB | Output is correct |
11 | Correct | 1 ms | 512 KB | Output is correct |
12 | Correct | 2 ms | 1280 KB | Output is correct |
13 | Correct | 2 ms | 1152 KB | Output is correct |
14 | Correct | 2 ms | 1280 KB | Output is correct |
15 | Correct | 2 ms | 1280 KB | Output is correct |
16 | Correct | 2 ms | 1280 KB | Output is correct |
17 | Correct | 2 ms | 1280 KB | Output is correct |
18 | Correct | 2 ms | 1152 KB | Output is correct |
19 | Correct | 2 ms | 1152 KB | Output is correct |
20 | Correct | 2 ms | 1280 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 384 KB | Output is correct |
2 | Correct | 0 ms | 384 KB | Output is correct |
3 | Correct | 1 ms | 384 KB | Output is correct |
4 | Correct | 1 ms | 512 KB | Output is correct |
5 | Correct | 1 ms | 512 KB | Output is correct |
6 | Correct | 1 ms | 512 KB | Output is correct |
7 | Correct | 1 ms | 512 KB | Output is correct |
8 | Correct | 1 ms | 512 KB | Output is correct |
9 | Correct | 1 ms | 512 KB | Output is correct |
10 | Correct | 1 ms | 512 KB | Output is correct |
11 | Correct | 1 ms | 512 KB | Output is correct |
12 | Correct | 2 ms | 1280 KB | Output is correct |
13 | Correct | 2 ms | 1152 KB | Output is correct |
14 | Correct | 2 ms | 1280 KB | Output is correct |
15 | Correct | 2 ms | 1280 KB | Output is correct |
16 | Correct | 2 ms | 1280 KB | Output is correct |
17 | Correct | 2 ms | 1280 KB | Output is correct |
18 | Correct | 2 ms | 1152 KB | Output is correct |
19 | Correct | 2 ms | 1152 KB | Output is correct |
20 | Correct | 2 ms | 1280 KB | Output is correct |
21 | Correct | 11 ms | 3840 KB | Output is correct |
22 | Correct | 12 ms | 4096 KB | Output is correct |
23 | Correct | 14 ms | 4480 KB | Output is correct |
24 | Correct | 79 ms | 14200 KB | Output is correct |
25 | Correct | 82 ms | 14200 KB | Output is correct |
26 | Correct | 81 ms | 14200 KB | Output is correct |
27 | Correct | 91 ms | 14072 KB | Output is correct |
28 | Correct | 54 ms | 10264 KB | Output is correct |