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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#840163 | #9561. 树数叔术 | niucard | 100 ✓ | 121ms | 11580kb | C++14 | 784b | 2025-01-02 16:01:27 | 2025-01-02 16:01:27 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
int n,v,p,f[160][160][160],c[160][160];
int main()
{
scanf("%d%d%d",&n,&v,&p);
if(v>=n)
{
printf("0");
return 0;
}
c[0][0]=1;
int lx=1;
for(int i=1;i<=n;i++)
{
c[i][0]=1;
for(int j=1;j<=i;j++)
c[i][j]=(c[i-1][j-1]+c[i-1][j])%p;
lx=1LL*lx*i%p;
}
f[0][1][0]=1;
for(int i=0;i<=v;i++)
{
for(int j=i+1;j<=n;j++)
{
for(int k=0;k<=j-(i+1);k++)
{
// cout<<i<<' '<<j<<' '<<k<<' '<<f[i][j][k]<<endl;
if(!f[i][j][k])
continue;
for(int l=1;l<=k;l++)
f[i+1][j][k-l]=(f[i+1][j][k-l]+1LL*f[i][j][k]*c[k][l])%p;
for(int l=j+1;l<=n;l++)
f[i+1][l][k+l-j-1]=(f[i+1][l][k+l-j-1]+1LL*f[i][j][k]*j)%p;
}
}
}
printf("%d",1LL*f[v][n][0]*lx%p);
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: 3884kb
input:
1 1 624295285
output:
0
result:
ok single line: '0'
Test #2:
score: 5
Accepted
time: 0ms
memory: 3776kb
input:
4 684813415 564954712
output:
0
result:
ok single line: '0'
Test #3:
score: 5
Accepted
time: 0ms
memory: 3856kb
input:
4 2 844826878
output:
24
result:
ok single line: '24'
Test #4:
score: 5
Accepted
time: 0ms
memory: 3836kb
input:
4 17724073 252218682
output:
0
result:
ok single line: '0'
Test #5:
score: 5
Accepted
time: 0ms
memory: 3708kb
input:
4 3 697681963
output:
384
result:
ok single line: '384'
Subtask #2:
score: 15
Accepted
Test #6:
score: 15
Accepted
time: 0ms
memory: 3920kb
input:
6 4 956647977
output:
238320
result:
ok single line: '238320'
Test #7:
score: 15
Accepted
time: 0ms
memory: 3872kb
input:
6 450615260 491361886
output:
0
result:
ok single line: '0'
Test #8:
score: 15
Accepted
time: 0ms
memory: 3976kb
input:
6 5 339344353
output:
933120
result:
ok single line: '933120'
Test #9:
score: 15
Accepted
time: 0ms
memory: 3724kb
input:
6 3 842228619
output:
23760
result:
ok single line: '23760'
Test #10:
score: 15
Accepted
time: 0ms
memory: 3860kb
input:
6 5 331699652
output:
933120
result:
ok single line: '933120'
Subtask #3:
score: 30
Accepted
Test #11:
score: 30
Accepted
time: 0ms
memory: 4584kb
input:
48 26 424594716
output:
362283012
result:
ok single line: '362283012'
Test #12:
score: 30
Accepted
time: 0ms
memory: 3812kb
input:
49 1000000000 738885247
output:
0
result:
ok single line: '0'
Test #13:
score: 30
Accepted
time: 0ms
memory: 4672kb
input:
48 39 688951620
output:
598399200
result:
ok single line: '598399200'
Test #14:
score: 30
Accepted
time: 0ms
memory: 3840kb
input:
50 476039414 292870080
output:
0
result:
ok single line: '0'
Test #15:
score: 30
Accepted
time: 2ms
memory: 4796kb
input:
50 48 245196368
output:
123576912
result:
ok single line: '123576912'
Subtask #4:
score: 50
Accepted
Test #16:
score: 50
Accepted
time: 0ms
memory: 3700kb
input:
150 526250070 197316869
output:
0
result:
ok single line: '0'
Test #17:
score: 50
Accepted
time: 114ms
memory: 11108kb
input:
149 116 671784452
output:
18945228
result:
ok single line: '18945228'
Test #18:
score: 50
Accepted
time: 109ms
memory: 10892kb
input:
146 144 906402626
output:
438777234
result:
ok single line: '438777234'
Test #19:
score: 50
Accepted
time: 108ms
memory: 11368kb
input:
147 143 705666477
output:
70408701
result:
ok single line: '70408701'
Test #20:
score: 50
Accepted
time: 121ms
memory: 11580kb
input:
150 147 453481175
output:
336290325
result:
ok single line: '336290325'