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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 |
---|---|---|---|---|---|---|---|---|---|
#569986 | #9309. Graph | LateRegistration# | AC ✓ | 290ms | 27204kb | C++20 | 1.5kb | 2024-09-17 13:05:35 | 2024-09-17 13:05:35 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
#define mod 998244353
using namespace std;
inline int read()
{
int n=0,f=1,ch=getchar();
while(ch<'0'||ch>'9')
{
if(ch=='-')f=-1;
ch=getchar();
}
while(ch>='0'&&ch<='9')
{
n=n*10+ch-'0';
ch=getchar();
}
return n*f;
}
bool vis[1000005];
int pri[1000005],cnt;
int sp0[1000005];
int g0[1000005];
int id1[1000005],id2[1000005],tot;
int w[1000005];
void findpri(int n)
{
vis[1]=true;
for(int i=2;i<=n;i++)
{
if(!vis[i])
{
pri[++cnt]=i;
sp0[cnt]=(sp0[cnt-1]+1);
}
for(int j=1;j<=cnt&&i*pri[j]<=n;j++)
{
vis[i*pri[j]]=true;
if(i%pri[j]==0)break;
}
}
}
int n,sn;
int findsl(int x)
{
int k=x<=sn?id1[x]:id2[n/x];
return g0[k];
}
int ksm(int n,int k)
{
int ans=1;
while(k>=1)
{
if(k&1)ans=1LL*ans*n%mod;
k>>=1;
n=1LL*n*n%mod;
}
return ans;
}
signed main()
{
int xx;
n=read();
sn=sqrt((double)n);
findpri(sn);
for(int l=1,r;l<=n;l=r+1)
{
r=n/(n/l);
w[++tot]=n/l;
xx=(w[tot]-1);
g0[tot]=xx;
if(n/l<=sn)id1[n/l]=tot;
else id2[n/(n/l)]=tot;
}
for(int i=1;i<=cnt;i++)
{
for(int j=1;j<=tot&&pri[i]*pri[i]<=w[j];j++)
{
int k=w[j]/pri[i]<=sn?id1[w[j]/pri[i]]:id2[n/(w[j]/pri[i])];
g0[j]=(g0[j]-g0[k]+sp0[i-1]);
}
}
int ans=1;
for(int l=1,r;l<=n;l=r+1)
{
r=n/(n/l);
int sth=(findsl(n/l)-findsl(n/(2*l)));
int sy=((n/l)-1-sth)%mod;
if(sy==0)sy=1,sth--;
int now=1LL*ksm((n/l)%mod,sth)*sy%mod;
ans=1LL*ans*ksm(now,r-l+1)%mod;
}
printf("%lld\n",ans);
}
这程序好像有点Bug,我给组数据试试?
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 7812kb
input:
4
output:
8
result:
ok answer is '8'
Test #2:
score: 0
Accepted
time: 1ms
memory: 9920kb
input:
2
output:
1
result:
ok answer is '1'
Test #3:
score: 0
Accepted
time: 1ms
memory: 10072kb
input:
123
output:
671840470
result:
ok answer is '671840470'
Test #4:
score: 0
Accepted
time: 1ms
memory: 7888kb
input:
233
output:
353738465
result:
ok answer is '353738465'
Test #5:
score: 0
Accepted
time: 1ms
memory: 7932kb
input:
5981
output:
970246821
result:
ok answer is '970246821'
Test #6:
score: 0
Accepted
time: 1ms
memory: 7968kb
input:
86422
output:
897815688
result:
ok answer is '897815688'
Test #7:
score: 0
Accepted
time: 1ms
memory: 7952kb
input:
145444
output:
189843901
result:
ok answer is '189843901'
Test #8:
score: 0
Accepted
time: 1ms
memory: 10040kb
input:
901000
output:
819449452
result:
ok answer is '819449452'
Test #9:
score: 0
Accepted
time: 1ms
memory: 7912kb
input:
1000000
output:
113573943
result:
ok answer is '113573943'
Test #10:
score: 0
Accepted
time: 2ms
memory: 10192kb
input:
23333333
output:
949849384
result:
ok answer is '949849384'
Test #11:
score: 0
Accepted
time: 2ms
memory: 8244kb
input:
102850434
output:
604886751
result:
ok answer is '604886751'
Test #12:
score: 0
Accepted
time: 15ms
memory: 10800kb
input:
998244353
output:
0
result:
ok answer is '0'
Test #13:
score: 0
Accepted
time: 14ms
memory: 10808kb
input:
1000000007
output:
318420284
result:
ok answer is '318420284'
Test #14:
score: 0
Accepted
time: 23ms
memory: 13236kb
input:
2147483547
output:
688759898
result:
ok answer is '688759898'
Test #15:
score: 0
Accepted
time: 37ms
memory: 13424kb
input:
5120103302
output:
116870489
result:
ok answer is '116870489'
Test #16:
score: 0
Accepted
time: 98ms
memory: 17224kb
input:
19834593299
output:
523663743
result:
ok answer is '523663743'
Test #17:
score: 0
Accepted
time: 184ms
memory: 23844kb
input:
52500109238
output:
195086665
result:
ok answer is '195086665'
Test #18:
score: 0
Accepted
time: 256ms
memory: 25272kb
input:
84848352911
output:
107959260
result:
ok answer is '107959260'
Test #19:
score: 0
Accepted
time: 290ms
memory: 27088kb
input:
99824435322
output:
0
result:
ok answer is '0'
Test #20:
score: 0
Accepted
time: 290ms
memory: 25300kb
input:
99999999354
output:
316301711
result:
ok answer is '316301711'
Test #21:
score: 0
Accepted
time: 280ms
memory: 27204kb
input:
100000000000
output:
396843576
result:
ok answer is '396843576'
Extra Test:
score: 0
Extra Test Passed