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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#765138#9479. And DNAint_RAC ✓1ms3744kbC++141.6kb2024-11-20 12:28:592024-11-20 12:29:02

Judging History

你现在查看的是最新测评结果

  • [2024-11-20 12:29:02]
  • 评测
  • 测评结果:AC
  • 用时:1ms
  • 内存:3744kb
  • [2024-11-20 12:28:59]
  • 提交

answer

#include<stdio.h>
#include<iostream>
#include<algorithm>
#include<vector>
#include<string.h>
#define ll long long
using namespace std;
const int mod=998244353;
int n,m;ll f[35][35][2],sum,ans,P=1;
struct node
{
    ll a[3][3];
    node operator * (const node o)
    {
        node z;memset(z.a,0,sizeof(z.a));
        for(int i:{0,1,2}) for(int j:{0,1,2}) for(int k:{0,1,2})
            z.a[i][j]=(z.a[i][j]+a[i][k]*o.a[k][j])%mod;
        return z;
    }
}g;
inline node ksm(node a,int b)
{
    node ans;memset(ans.a,0,sizeof(ans.a));
    for(int i:{0,1,2}) ans.a[i][i]=1;
    for(;b;a=a*a,b>>=1)
        if(b&1) ans=ans*a;return ans;
}
signed main()
{
#ifndef ONLINE_JUDGE
    freopen("in.in","r",stdin);
    freopen("out.out","w",stdout);
#endif
    cin.tie(0),cout.tie(0);
    ios::sync_with_stdio(0);
    cin>>n>>m,f[0][0][0]=1;
    for(int i=1;i<=30;++i)
    {
        if((m>>(i-1))&1)
        {
            for(int j=0;j<i;++j)
            {
                f[i][j+1][0]+=f[i-1][j][0];
                f[i][j][0]+=f[i-1][j][1];
                f[i][j][1]+=f[i-1][j][1];
            }
        }
        else
        {
            for(int j=0;j<i;++j)
            {
                f[i][j][0]+=f[i-1][j][0];
                f[i][j][1]+=f[i-1][j][0];
                f[i][j+1][1]+=f[i-1][j][1];
            }
        }
    }
    memset(g.a,0,sizeof(g.a));
    g.a[0][1]=g.a[1][0]=g.a[1][2]=g.a[2][0]=1;
    g=ksm(g,n),sum=(g.a[0][0]+g.a[1][1]+g.a[2][2])%mod;
    for(int j=0;j<=30;++j)
        ans+=P*f[30][j][0]%mod,P=P*sum%mod;
    cout<<ans%mod<<'\n';return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3688kb

input:

3 2

output:

4

result:

ok "4"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3608kb

input:

3 0

output:

1

result:

ok "1"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3680kb

input:

100 100

output:

343406454

result:

ok "343406454"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3684kb

input:

686579306 119540831

output:

260602195

result:

ok "260602195"

Test #5:

score: 0
Accepted
time: 0ms
memory: 3736kb

input:

26855095 796233790

output:

492736984

result:

ok "492736984"

Test #6:

score: 0
Accepted
time: 0ms
memory: 3660kb

input:

295310488 262950628

output:

503008241

result:

ok "503008241"

Test #7:

score: 0
Accepted
time: 0ms
memory: 3668kb

input:

239670714 149827706

output:

994702969

result:

ok "994702969"

Test #8:

score: 0
Accepted
time: 0ms
memory: 3660kb

input:

790779949 110053353

output:

898252188

result:

ok "898252188"

Test #9:

score: 0
Accepted
time: 0ms
memory: 3680kb

input:

726600542 795285932

output:

183726777

result:

ok "183726777"

Test #10:

score: 0
Accepted
time: 0ms
memory: 3660kb

input:

957970519 585582861

output:

298814018

result:

ok "298814018"

Test #11:

score: 0
Accepted
time: 0ms
memory: 3672kb

input:

93349859 634036506

output:

110693443

result:

ok "110693443"

Test #12:

score: 0
Accepted
time: 0ms
memory: 3676kb

input:

453035113 34126396

output:

306244220

result:

ok "306244220"

Test #13:

score: 0
Accepted
time: 0ms
memory: 3672kb

input:

31994526 100604502

output:

930620701

result:

ok "930620701"

Test #14:

score: 0
Accepted
time: 0ms
memory: 3672kb

input:

234760741 249817734

output:

440195858

result:

ok "440195858"

Test #15:

score: 0
Accepted
time: 0ms
memory: 3672kb

input:

542621111 646412689

output:

207377992

result:

ok "207377992"

Test #16:

score: 0
Accepted
time: 0ms
memory: 3600kb

input:

28492783 602632297

output:

65234506

result:

ok "65234506"

Test #17:

score: 0
Accepted
time: 0ms
memory: 3744kb

input:

213500301 768820204

output:

540205113

result:

ok "540205113"

Test #18:

score: 0
Accepted
time: 0ms
memory: 3676kb

input:

697808101 753041955

output:

93561295

result:

ok "93561295"

Test #19:

score: 0
Accepted
time: 0ms
memory: 3680kb

input:

585126464 450455977

output:

91109717

result:

ok "91109717"

Test #20:

score: 0
Accepted
time: 0ms
memory: 3604kb

input:

236696315 482334538

output:

925575199

result:

ok "925575199"

Test #21:

score: 0
Accepted
time: 0ms
memory: 3684kb

input:

632719214 298704996

output:

358926097

result:

ok "358926097"

Test #22:

score: 0
Accepted
time: 0ms
memory: 3736kb

input:

869119333 933404114

output:

318501108

result:

ok "318501108"

Test #23:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

6977994 814763202

output:

585332987

result:

ok "585332987"

Test #24:

score: 0
Accepted
time: 0ms
memory: 3672kb

input:

3 1

output:

3

result:

ok "3"

Test #25:

score: 0
Accepted
time: 0ms
memory: 3684kb

input:

3 1000000000

output:

279679226

result:

ok "279679226"

Test #26:

score: 0
Accepted
time: 0ms
memory: 3552kb

input:

4 0

output:

1

result:

ok "1"

Test #27:

score: 0
Accepted
time: 0ms
memory: 3688kb

input:

4 1

output:

2

result:

ok "2"

Test #28:

score: 0
Accepted
time: 0ms
memory: 3604kb

input:

4 1000000000

output:

1755648

result:

ok "1755648"

Test #29:

score: 0
Accepted
time: 0ms
memory: 3688kb

input:

1000000000 0

output:

1

result:

ok "1"

Test #30:

score: 0
Accepted
time: 0ms
memory: 3676kb

input:

1000000000 1

output:

696798313

result:

ok "696798313"

Test #31:

score: 0
Accepted
time: 0ms
memory: 3688kb

input:

1000000000 1000000000

output:

703786301

result:

ok "703786301"

Extra Test:

score: 0
Extra Test Passed