QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#765138 | #9479. And DNA | int_R | AC ✓ | 1ms | 3744kb | C++14 | 1.6kb | 2024-11-20 12:28:59 | 2024-11-20 12:29:02 |
Judging History
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