# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
43967 | 2018-03-29T01:18:01 Z | model_code | Asceticism (JOI18_asceticism) | C++17 | 27 ms | 3196 KB |
#include<stdio.h> #include<math.h> #include<algorithm> #include<queue> #include<deque> #include<string> #include<string.h> #include<vector> #include<set> #include<map> #include<stdlib.h> #include<cassert> using namespace std; const long long mod=1000000007; const long long inf=mod*mod; const long long d2=500000004; const double EPS=1e-6; const double PI=acos(-1.0); int ABS(int a){return max(a,-a);} long long ABS(long long a){return max(a,-a);} long long finv[110000]; long long inv[110000]; long long fact[110000]; long long C(int a,int b){ if(a<b)return 0; return fact[a]*finv[b]%mod*finv[a-b]%mod; } long long pw(long long a,long long b){ long long ret=1; while(b){ if(b%2)ret=ret*a%mod; a=a*a%mod; b/=2; } return ret; } long long f(int a,int b){ long long ret=0; for(int i=0;i<=b;i++){ long long t=pw(b-i,a)*finv[a]%mod*C(a,i)%mod; if(i%2)ret=(ret+mod-t)%mod; else ret=(ret+t)%mod; } return ret; } long long calc(int a,int b){ long long ret=f(a,b+1); ret=(ret+mod-f(a,b))%mod; return ret; } int main(){ fact[0]=1; for(int i=1;i<110000;i++)fact[i]=fact[i-1]*i%mod; inv[1]=1; for(int i=2;i<110000;i++){ inv[i]=(mod-(mod/i)*inv[mod%i]%mod)%mod; } finv[0]=1; for(int i=1;i<110000;i++){ finv[i]=finv[i-1]*inv[i]%mod; } int N,K;scanf("%d%d",&N,&K); K--; printf("%lld\n",calc(N,K)*fact[N]%mod); }
Compilation message
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 10 ms | 2904 KB | Output is correct |
2 | Correct | 8 ms | 3052 KB | Output is correct |
3 | Correct | 8 ms | 3064 KB | Output is correct |
4 | Correct | 8 ms | 3064 KB | Output is correct |
5 | Correct | 8 ms | 3064 KB | Output is correct |
6 | Correct | 8 ms | 3064 KB | Output is correct |
7 | Correct | 9 ms | 3064 KB | Output is correct |
8 | Correct | 9 ms | 3064 KB | Output is correct |
9 | Correct | 8 ms | 3064 KB | Output is correct |
10 | Correct | 8 ms | 3064 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 10 ms | 2904 KB | Output is correct |
2 | Correct | 8 ms | 3052 KB | Output is correct |
3 | Correct | 8 ms | 3064 KB | Output is correct |
4 | Correct | 8 ms | 3064 KB | Output is correct |
5 | Correct | 8 ms | 3064 KB | Output is correct |
6 | Correct | 8 ms | 3064 KB | Output is correct |
7 | Correct | 9 ms | 3064 KB | Output is correct |
8 | Correct | 9 ms | 3064 KB | Output is correct |
9 | Correct | 8 ms | 3064 KB | Output is correct |
10 | Correct | 8 ms | 3064 KB | Output is correct |
11 | Correct | 8 ms | 3064 KB | Output is correct |
12 | Correct | 8 ms | 3064 KB | Output is correct |
13 | Correct | 8 ms | 3080 KB | Output is correct |
14 | Correct | 8 ms | 3080 KB | Output is correct |
15 | Correct | 8 ms | 3080 KB | Output is correct |
16 | Correct | 8 ms | 3080 KB | Output is correct |
17 | Correct | 8 ms | 3124 KB | Output is correct |
18 | Correct | 9 ms | 3124 KB | Output is correct |
19 | Correct | 8 ms | 3136 KB | Output is correct |
20 | Correct | 8 ms | 3156 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 10 ms | 2904 KB | Output is correct |
2 | Correct | 8 ms | 3052 KB | Output is correct |
3 | Correct | 8 ms | 3064 KB | Output is correct |
4 | Correct | 8 ms | 3064 KB | Output is correct |
5 | Correct | 8 ms | 3064 KB | Output is correct |
6 | Correct | 8 ms | 3064 KB | Output is correct |
7 | Correct | 9 ms | 3064 KB | Output is correct |
8 | Correct | 9 ms | 3064 KB | Output is correct |
9 | Correct | 8 ms | 3064 KB | Output is correct |
10 | Correct | 8 ms | 3064 KB | Output is correct |
11 | Correct | 8 ms | 3064 KB | Output is correct |
12 | Correct | 8 ms | 3064 KB | Output is correct |
13 | Correct | 8 ms | 3080 KB | Output is correct |
14 | Correct | 8 ms | 3080 KB | Output is correct |
15 | Correct | 8 ms | 3080 KB | Output is correct |
16 | Correct | 8 ms | 3080 KB | Output is correct |
17 | Correct | 8 ms | 3124 KB | Output is correct |
18 | Correct | 9 ms | 3124 KB | Output is correct |
19 | Correct | 8 ms | 3136 KB | Output is correct |
20 | Correct | 8 ms | 3156 KB | Output is correct |
21 | Correct | 9 ms | 3156 KB | Output is correct |
22 | Correct | 8 ms | 3156 KB | Output is correct |
23 | Correct | 9 ms | 3156 KB | Output is correct |
24 | Correct | 8 ms | 3180 KB | Output is correct |
25 | Correct | 8 ms | 3180 KB | Output is correct |
26 | Correct | 8 ms | 3180 KB | Output is correct |
27 | Correct | 8 ms | 3180 KB | Output is correct |
28 | Correct | 8 ms | 3180 KB | Output is correct |
29 | Correct | 10 ms | 3180 KB | Output is correct |
30 | Correct | 8 ms | 3180 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 10 ms | 2904 KB | Output is correct |
2 | Correct | 8 ms | 3052 KB | Output is correct |
3 | Correct | 8 ms | 3064 KB | Output is correct |
4 | Correct | 8 ms | 3064 KB | Output is correct |
5 | Correct | 8 ms | 3064 KB | Output is correct |
6 | Correct | 8 ms | 3064 KB | Output is correct |
7 | Correct | 9 ms | 3064 KB | Output is correct |
8 | Correct | 9 ms | 3064 KB | Output is correct |
9 | Correct | 8 ms | 3064 KB | Output is correct |
10 | Correct | 8 ms | 3064 KB | Output is correct |
11 | Correct | 8 ms | 3064 KB | Output is correct |
12 | Correct | 8 ms | 3064 KB | Output is correct |
13 | Correct | 8 ms | 3080 KB | Output is correct |
14 | Correct | 8 ms | 3080 KB | Output is correct |
15 | Correct | 8 ms | 3080 KB | Output is correct |
16 | Correct | 8 ms | 3080 KB | Output is correct |
17 | Correct | 8 ms | 3124 KB | Output is correct |
18 | Correct | 9 ms | 3124 KB | Output is correct |
19 | Correct | 8 ms | 3136 KB | Output is correct |
20 | Correct | 8 ms | 3156 KB | Output is correct |
21 | Correct | 9 ms | 3156 KB | Output is correct |
22 | Correct | 8 ms | 3156 KB | Output is correct |
23 | Correct | 9 ms | 3156 KB | Output is correct |
24 | Correct | 8 ms | 3180 KB | Output is correct |
25 | Correct | 8 ms | 3180 KB | Output is correct |
26 | Correct | 8 ms | 3180 KB | Output is correct |
27 | Correct | 8 ms | 3180 KB | Output is correct |
28 | Correct | 8 ms | 3180 KB | Output is correct |
29 | Correct | 10 ms | 3180 KB | Output is correct |
30 | Correct | 8 ms | 3180 KB | Output is correct |
31 | Correct | 9 ms | 3180 KB | Output is correct |
32 | Correct | 9 ms | 3196 KB | Output is correct |
33 | Correct | 9 ms | 3196 KB | Output is correct |
34 | Correct | 13 ms | 3196 KB | Output is correct |
35 | Correct | 23 ms | 3196 KB | Output is correct |
36 | Correct | 25 ms | 3196 KB | Output is correct |
37 | Correct | 27 ms | 3196 KB | Output is correct |
38 | Correct | 10 ms | 3196 KB | Output is correct |
39 | Correct | 14 ms | 3196 KB | Output is correct |
40 | Correct | 16 ms | 3196 KB | Output is correct |