QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#804084 | #9561. 树数叔术 | Larunatrecy | 100 ✓ | 16ms | 3904kb | C++14 | 1.1kb | 2024-12-07 20:17:05 | 2024-12-07 20:17:05 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
template <typename T>inline void read(T &x)
{
x=0;char c=getchar();bool f=0;
for(;c<'0'||c>'9';c=getchar())f|=(c=='-');
for(;c>='0'&&c<='9';c=getchar())x=(x<<1)+(x<<3)+(c-'0');
x=(f?-x:x);
}
typedef long long LL;
const int N = 200;
int n,V,mod;
int f[N][N],g[N][N],C[N][N];
inline int add(int x,int y){return x+y>=mod?x+y-mod:x+y;}
int main()
{
read(n);read(V);read(mod);
if(V>=n)
{
cout<<0;
return 0;
}
for(int i=0;i<=V-1;i++)
{
f[i][2]=1;
for(int j=3;j<=n;j++)
f[i][j]=1ll*f[i][j-1]*i%mod;
}
int cur=1;
for(int i=2;i<=V;i++)
{
for(int j=0;j<=V-i+1;j++)
{
for(int k=2;k<=n;k++)
{
g[j][k]=1ll*f[j][k-1]*(k-1)%mod;
g[j][k]=add(g[j][k],1ll*g[j][k-1]*j%mod);
}
}
for(int j=0;j<=V-i+1;j++)
{
for(int k=2;k<=n;k++)
if(f[j][k])
{
if(j)g[j-1][k]=add(g[j-1][k],f[j][k]);
g[j][k]=add(g[j][k],mod-f[j][k]);
}
}
for(int j=0;j<=V-i+1;j++)
for(int k=2;k<=n;k++)
f[j][k]=g[j][k],g[j][k]=0;
}
int ans=f[0][n];
for(int i=1;i<=n;i++)ans=1ll*ans*i%mod;
cout<<ans;
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 5
Accepted
Test #1:
score: 5
Accepted
time: 0ms
memory: 3524kb
input:
1 1 624295285
output:
0
result:
ok single line: '0'
Test #2:
score: 5
Accepted
time: 0ms
memory: 3664kb
input:
4 684813415 564954712
output:
0
result:
ok single line: '0'
Test #3:
score: 5
Accepted
time: 0ms
memory: 3492kb
input:
4 2 844826878
output:
24
result:
ok single line: '24'
Test #4:
score: 5
Accepted
time: 0ms
memory: 3668kb
input:
4 17724073 252218682
output:
0
result:
ok single line: '0'
Test #5:
score: 5
Accepted
time: 0ms
memory: 3680kb
input:
4 3 697681963
output:
384
result:
ok single line: '384'
Subtask #2:
score: 15
Accepted
Test #6:
score: 15
Accepted
time: 0ms
memory: 3612kb
input:
6 4 956647977
output:
238320
result:
ok single line: '238320'
Test #7:
score: 15
Accepted
time: 0ms
memory: 3672kb
input:
6 450615260 491361886
output:
0
result:
ok single line: '0'
Test #8:
score: 15
Accepted
time: 0ms
memory: 3684kb
input:
6 5 339344353
output:
933120
result:
ok single line: '933120'
Test #9:
score: 15
Accepted
time: 0ms
memory: 3624kb
input:
6 3 842228619
output:
23760
result:
ok single line: '23760'
Test #10:
score: 15
Accepted
time: 0ms
memory: 3628kb
input:
6 5 331699652
output:
933120
result:
ok single line: '933120'
Subtask #3:
score: 30
Accepted
Test #11:
score: 30
Accepted
time: 1ms
memory: 3572kb
input:
48 26 424594716
output:
362283012
result:
ok single line: '362283012'
Test #12:
score: 30
Accepted
time: 0ms
memory: 3660kb
input:
49 1000000000 738885247
output:
0
result:
ok single line: '0'
Test #13:
score: 30
Accepted
time: 1ms
memory: 3672kb
input:
48 39 688951620
output:
598399200
result:
ok single line: '598399200'
Test #14:
score: 30
Accepted
time: 0ms
memory: 3604kb
input:
50 476039414 292870080
output:
0
result:
ok single line: '0'
Test #15:
score: 30
Accepted
time: 1ms
memory: 3564kb
input:
50 48 245196368
output:
123576912
result:
ok single line: '123576912'
Subtask #4:
score: 50
Accepted
Test #16:
score: 50
Accepted
time: 0ms
memory: 3656kb
input:
150 526250070 197316869
output:
0
result:
ok single line: '0'
Test #17:
score: 50
Accepted
time: 10ms
memory: 3720kb
input:
149 116 671784452
output:
18945228
result:
ok single line: '18945228'
Test #18:
score: 50
Accepted
time: 15ms
memory: 3904kb
input:
146 144 906402626
output:
438777234
result:
ok single line: '438777234'
Test #19:
score: 50
Accepted
time: 15ms
memory: 3756kb
input:
147 143 705666477
output:
70408701
result:
ok single line: '70408701'
Test #20:
score: 50
Accepted
time: 16ms
memory: 3892kb
input:
150 147 453481175
output:
336290325
result:
ok single line: '336290325'