QOJ.ac
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 |
---|---|---|---|---|---|---|---|---|---|
#577223 | #9309. Graph | Gricew | AC ✓ | 309ms | 38432kb | C++14 | 2.0kb | 2024-09-20 09:24:04 | 2024-09-20 09:24:07 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N=1000000;
int p1,vt,z[N+5],pr[N+5];
long long x,v[N+5],f[2][N+5],s[N+5],g[N+5];
const signed mod=998244353;
long long fpow(long long a,int b){
long long ans=1;
while(b){
if(b&1) ans=ans*a%mod;
a=a*a%mod;
b>>=1;
}
return ans;
}
void dd(){
p1=0;
for(int i=2;i<=N;i++){
if(!z[i]){
pr[++p1]=i;
s[p1]=p1;
}
for(int j=1;j<=p1&&i*pr[j]<=N;j++){
z[i*pr[j]]=1;
if(i%pr[j]==0) break;
}
}
}
void init(long long n){
x=sqrt(n)+1;
vt=0;
for(long long l=1,r;l<=n;l=r+1){
r=n/(n/l);
v[++vt]=n/l;
if(n/l<=x) f[0][n/l]=vt;
else f[1][l]=vt;
long long t=n/l;
g[vt]=t-1;
}
long long w;
for(int i=1;i<=p1;i++){
w=1ll*pr[i]*pr[i];
long long t;
for(int j=1;j<=vt&&w<=v[j];j++){
t=v[j]/pr[i];
if(t<=x) t=f[0][t];
else t=f[1][n/t];
g[j]-=g[t]-s[i-1];
}
}
}
long long S(long long p,int q,long long n){
if(pr[q]>=p) return 0;
long long td=(p<=x?f[0][p]:f[1][n/p]);
long long re=g[td]-s[q];
return re;
}
long long calc(long long p,long long n){
if(p<=1) return 0;
return S(p,0,n);
}
long long ans(long long n,long long _n){
if(n<=2) return 1;
long long cnt=calc(n,_n)-calc(n/2,_n)+1;
long long res=n-cnt;
if(res==0){
return fpow(n%mod,cnt-2);
}else{
return fpow(n%mod,cnt-1)*(res%mod)%mod;
}
}
long long solve(long long n){
long long a=1;
for(int l=1;l<=n;++l){
long long r(n/(n/l));
a=a*fpow(ans(n/l,n),r-l+1)%mod;
l=r;
}
return a;
}
signed main()
{
long long n;
scanf("%lld",&n);
dd();
init(n);
if(n==1){
printf("1\n");
}
else{
printf("%lld\n",solve(n));
}
return 0;
}
这程序好像有点Bug,我给组数据试试?
詳細信息
Test #1:
score: 100
Accepted
time: 9ms
memory: 23860kb
input:
4
output:
8
result:
ok answer is '8'
Test #2:
score: 0
Accepted
time: 4ms
memory: 19940kb
input:
2
output:
1
result:
ok answer is '1'
Test #3:
score: 0
Accepted
time: 3ms
memory: 23912kb
input:
123
output:
671840470
result:
ok answer is '671840470'
Test #4:
score: 0
Accepted
time: 2ms
memory: 21848kb
input:
233
output:
353738465
result:
ok answer is '353738465'
Test #5:
score: 0
Accepted
time: 2ms
memory: 23956kb
input:
5981
output:
970246821
result:
ok answer is '970246821'
Test #6:
score: 0
Accepted
time: 8ms
memory: 21852kb
input:
86422
output:
897815688
result:
ok answer is '897815688'
Test #7:
score: 0
Accepted
time: 8ms
memory: 23900kb
input:
145444
output:
189843901
result:
ok answer is '189843901'
Test #8:
score: 0
Accepted
time: 4ms
memory: 21860kb
input:
901000
output:
819449452
result:
ok answer is '819449452'
Test #9:
score: 0
Accepted
time: 0ms
memory: 23904kb
input:
1000000
output:
113573943
result:
ok answer is '113573943'
Test #10:
score: 0
Accepted
time: 3ms
memory: 21872kb
input:
23333333
output:
949849384
result:
ok answer is '949849384'
Test #11:
score: 0
Accepted
time: 8ms
memory: 24172kb
input:
102850434
output:
604886751
result:
ok answer is '604886751'
Test #12:
score: 0
Accepted
time: 19ms
memory: 22424kb
input:
998244353
output:
0
result:
ok answer is '0'
Test #13:
score: 0
Accepted
time: 19ms
memory: 22308kb
input:
1000000007
output:
318420284
result:
ok answer is '318420284'
Test #14:
score: 0
Accepted
time: 24ms
memory: 28772kb
input:
2147483547
output:
688759898
result:
ok answer is '688759898'
Test #15:
score: 0
Accepted
time: 46ms
memory: 28916kb
input:
5120103302
output:
116870489
result:
ok answer is '116870489'
Test #16:
score: 0
Accepted
time: 104ms
memory: 28512kb
input:
19834593299
output:
523663743
result:
ok answer is '523663743'
Test #17:
score: 0
Accepted
time: 195ms
memory: 33264kb
input:
52500109238
output:
195086665
result:
ok answer is '195086665'
Test #18:
score: 0
Accepted
time: 271ms
memory: 35444kb
input:
84848352911
output:
107959260
result:
ok answer is '107959260'
Test #19:
score: 0
Accepted
time: 307ms
memory: 38236kb
input:
99824435322
output:
0
result:
ok answer is '0'
Test #20:
score: 0
Accepted
time: 301ms
memory: 38432kb
input:
99999999354
output:
316301711
result:
ok answer is '316301711'
Test #21:
score: 0
Accepted
time: 309ms
memory: 38100kb
input:
100000000000
output:
396843576
result:
ok answer is '396843576'
Extra Test:
score: 0
Extra Test Passed