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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#243645 | #7647. 树哈希 | AFewSuns | 77 | 3272ms | 10060kb | C++14 | 3.8kb | 2023-11-08 15:24:20 | 2023-11-08 15:24:20 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
namespace my_std{
#define ll long long
#define bl bool
ll my_pow(ll a,ll b,ll mod){
ll res=1;
if(!b) return 1;
while(b){
if(b&1) res=(res*a)%mod;
a=(a*a)%mod;
b>>=1;
}
return res;
}
ll qpow(ll a,ll b){
ll res=1;
if(!b) return 1;
while(b){
if(b&1) res*=a;
a*=a;
b>>=1;
}
return res;
}
#define db double
#define pf printf
#define pc putchar
#define fr(i,x,y) for(register ll i=(x);i<=(y);i++)
#define pfr(i,x,y) for(register ll i=(x);i>=(y);i--)
#define go(u) for(ll i=head[u];i;i=e[i].nxt)
#define enter pc('\n')
#define space pc(' ')
#define fir first
#define sec second
#define MP make_pair
#define il inline
#define inf 8e18
#define random(x) rand()*rand()%(x)
#define inv(a,mod) my_pow((a),(mod-2),(mod))
il ll read(){
ll sum=0,f=1;
char ch=0;
while(!isdigit(ch)){
if(ch=='-') f=-1;
ch=getchar();
}
while(isdigit(ch)){
sum=sum*10+(ch^48);
ch=getchar();
}
return sum*f;
}
il void write(ll x){
if(x<0){
x=-x;
pc('-');
}
if(x>9) write(x/10);
pc(x%10+'0');
}
il void writeln(ll x){
write(x);
enter;
}
il void writesp(ll x){
write(x);
space;
}
}
using namespace my_std;
ll n,q,mod,pw[110],jc[110],jcinv[110],PW[110][110],C[110][110];
ll m=0,cnt[110],f[110],g[110],gg[110],ans[110];
ll A[110][110][110],B[110];
struct FastMod{
#define ull unsigned long long
ull n,m;
il void init(ull p){
n=p;
m=((__int128)1<<64)/n;
}
il ll reduce(ull x){
ull res=((__int128)x*m)>>64;
res=x-res*n;
return (res>=n)?(res-n):res;
}
#undef ull
}F;
il void inc(ll &x,ll y){
((x+=y)>=mod)?(x-=mod):0;
}
il ll work(ll x){
if(x==1) return F.reduce(PW[f[1]][f[1]-1]*F.reduce(pw[f[1]]*jcinv[f[x]]));
fr(i,0,x) g[i]=0;
g[0]=1;
fr(p,1,x-1){
if(!f[p]) continue;
fr(i,0,x) gg[i]=g[i];
fr(i,0,x) g[i]=0;
fr(i,0,x) for(ll j=0;j<=i;j+=p) if(gg[i-j]) inc(g[i],F.reduce(gg[i-j]*A[p][f[p]][j]));
}
inc(g[0],mod-1);
fr(i,0,x) g[i]=F.reduce(g[i]*q);
fr(i,0,x) gg[i]=0;
gg[0]=1;
fr(i,0,x-1){
gg[i]=F.reduce((i+1)*g[i+1]);
fr(j,0,i-1) inc(gg[i],mod-F.reduce(gg[j]*g[i-j]));
}
ll sum=F.reduce(gg[x-1]*F.reduce(jc[x-1]*jcinv[x])),mul=1,res=0;
fr(k,1,f[x]){
mul=F.reduce(mul*sum);
if(k==f[x]) inc(res,mul);
else inc(res,F.reduce(mul*F.reduce(k*F.reduce(PW[f[x]][f[x]-k-1]*F.reduce(C[f[x]][k]*pw[f[x]-k])))));
}
return F.reduce(res*jcinv[f[x]]);
}
void dfs(ll lim,ll sum,ll res){
if(cnt[m-1]!=cnt[m]&&m>1){
ll x=cnt[m-1];
res=F.reduce(res*work(x));
// fr(i,0,n) g[i]=B[i];
// fr(i,0,n) B[i]=0;
// fr(i,0,n) for(ll j=0;j<=i;j+=x) inc(B[i],F.reduce(g[i-j]*A[x][f[x]][j]));
}
inc(ans[sum],F.reduce(res*work(cnt[m])));
fr(i,lim,n-sum){
cnt[++m]=i;
f[i]++;
dfs(i,sum+i,res);
m--;
f[i]--;
if(!sum) break;
}
// if(cnt[m-1]!=cnt[m]&&m>1){
// ll x=cnt[m-1];
// fr(i,0,n) for(ll j=x;j<=i;j+=x) inc(B[i],mod-F.reduce(B[i-j]*A[x][f[x]][j]));
// }
}
il void init(){
pw[0]=jc[0]=1;
fr(i,1,n) pw[i]=pw[i-1]*q%mod;
fr(i,1,n) jc[i]=jc[i-1]*i%mod;
jcinv[n]=inv(jc[n],mod);
pfr(i,n-1,0) jcinv[i]=jcinv[i+1]*(i+1)%mod;
fr(p,1,n){
A[p][0][0]=1;
fr(i,0,n/p) A[p][1][i]=my_pow(jcinv[i],p,mod);
fr(i,2,n/p) fr(j,0,n/p) fr(k,0,j) inc(A[p][i][j],F.reduce(A[p][i-1][k]*A[p][1][j-k]));
fr(i,1,n/p){
pfr(j,n,0){
if(j%p==0) A[p][i][j]=A[p][i][j/p];
else A[p][i][j]=0;
}
}
}
fr(i,1,n){
PW[i][0]=1;
fr(j,1,n) PW[i][j]=F.reduce(PW[i][j-1]*i);
}
fr(i,0,n){
C[i][0]=1;
fr(j,1,i) C[i][j]=(C[i-1][j-1]+C[i-1][j])%mod;
}
}
int main(){
n=read();
q=read();
mod=read();
F.init(mod);
ll N=n;
n=min(n,57ll);
init();
B[0]=1;
dfs(1,0,1);
fr(i,1,n) writeln(F.reduce(ans[i]*jc[i-1]));
fr(i,n+1,N) writeln(0);
}
/*
100 2 998244353
ans:
2
4
20
172
2052
*/
详细
Subtask #1:
score: 77
Acceptable Answer
Test #1:
score: 77
Acceptable Answer
time: 3272ms
memory: 7960kb
input:
100 910342260 935929297
output:
910342260 816177711 569226551 514707635 267406725 391906453 250727611 208481307 81485772 23235693 216730633 285646992 175230876 274553119 174038157 203318484 775234565 322891510 933522659 900692754 745314049 700055439 779013783 855717291 855228480 586396378 894281940 384312444 837857031 272136268 26...
result:
points 0.770 You got 77 pts!
Test #2:
score: 77
Acceptable Answer
time: 3263ms
memory: 10056kb
input:
100 222959056 947643239
output:
222959056 358599927 365062242 287299555 872152310 785181552 689517811 751458049 373969559 887125628 238000283 265869067 862846962 717459206 118380127 903859172 38731072 220551290 311944377 678478487 757437607 696077670 937732236 530238679 704937150 7448691 641846446 371506084 393996598 847615147 228...
result:
points 0.770 You got 77 pts!
Test #3:
score: 77
Acceptable Answer
time: 3255ms
memory: 8236kb
input:
100 135352674 235854343
output:
135352674 116843515 129198122 128256418 202034449 101078108 134511179 26177395 38146936 177689345 171471260 220203615 2725266 54489245 202150371 51581049 9159057 174134120 214954721 6858381 164936156 136507834 11983036 56210425 230637079 37588391 129846550 182944624 160550968 143284554 172157415 229...
result:
points 0.770 You got 77 pts!
Test #4:
score: 77
Acceptable Answer
time: 3269ms
memory: 10060kb
input:
100 538608644 566215339
output:
538608644 365236991 134179965 39370099 416828003 17910602 226317362 529379896 407121368 81806097 249408176 336758120 296361261 35236747 429449088 328368699 409154256 418665686 24463075 203118458 352974481 3351773 506522141 61405204 248921056 351694297 485859431 419342548 150905111 157365902 53232656...
result:
points 0.770 You got 77 pts!
Test #5:
score: 77
Acceptable Answer
time: 3259ms
memory: 8184kb
input:
100 56831820 281897771
output:
56831820 213573518 5338712 114481529 104176011 222091299 258318286 168492731 248042852 279768543 163273831 250332871 125456436 55441194 94771937 85241933 265069860 227132810 189427807 26222782 184487649 201740742 267160664 98981147 101908728 84191074 210184730 48919201 18122051 176229976 226118070 1...
result:
points 0.770 You got 77 pts!