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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 |
---|---|---|---|---|---|---|---|---|---|
#593461 | #2892. 合法序列 | ship2077 | AC ✓ | 6ms | 3932kb | C++23 | 997b | 2024-09-27 14:14:06 | 2024-09-27 14:14:07 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
constexpr int mod=998244353;
int n,k,m,ans,dp[2][35];
int rdc(int x){return x>=mod?x-mod:x;}
int main(){
scanf("%d%d",&n,&k); m=1<<k;n-=m;
for (int sta=0;sta<1<<m;sta++){
bool flag=1;int x=0;
for (int i=0;i<m;i++){
(x<<=1)|=sta>>i&1;
if (i<k-1) continue;
int p=x&(m-1);
if (~sta>>p&1) {flag=0;break;}
}
if (!flag) continue; x&=m-1;
for (int i=0;i<m;i++) dp[0][i]=0;
dp[0][x]=1;
for (int i=1;i<=n;i++){ int now=i&1;
for (int j=0;j<m;j++) dp[now][j]=0;
for (int j=0;j<m;j++) if (dp[!now][j])
for (int t:{0,1}){
int p=(j<<1|t)&(m-1);
if (sta>>p&1) dp[now][p]=rdc(dp[now][p]+dp[!now][j]);
}
}
for (int i=0;i<m;i++)
ans=rdc(ans+dp[n&1][i]);
}
printf("%d\n",ans);
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3792kb
input:
2 1
output:
1
result:
ok single line: '1'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3872kb
input:
10 3
output:
27
result:
ok single line: '27'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3744kb
input:
11 3
output:
46
result:
ok single line: '46'
Test #4:
score: 0
Accepted
time: 1ms
memory: 3868kb
input:
500 3
output:
402086823
result:
ok single line: '402086823'
Test #5:
score: 0
Accepted
time: 1ms
memory: 3856kb
input:
16 4
output:
268
result:
ok single line: '268'
Test #6:
score: 0
Accepted
time: 1ms
memory: 3852kb
input:
17 4
output:
520
result:
ok single line: '520'
Test #7:
score: 0
Accepted
time: 1ms
memory: 3872kb
input:
18 4
output:
939
result:
ok single line: '939'
Test #8:
score: 0
Accepted
time: 0ms
memory: 3920kb
input:
19 4
output:
1634
result:
ok single line: '1634'
Test #9:
score: 0
Accepted
time: 1ms
memory: 3916kb
input:
20 4
output:
2678
result:
ok single line: '2678'
Test #10:
score: 0
Accepted
time: 6ms
memory: 3856kb
input:
500 4
output:
905810545
result:
ok single line: '905810545'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3928kb
input:
156 3
output:
158348364
result:
ok single line: '158348364'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3748kb
input:
3 1
output:
2
result:
ok single line: '2'
Test #13:
score: 0
Accepted
time: 0ms
memory: 3752kb
input:
419 1
output:
309520444
result:
ok single line: '309520444'
Test #14:
score: 0
Accepted
time: 0ms
memory: 3752kb
input:
148 1
output:
981388471
result:
ok single line: '981388471'
Test #15:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
208 1
output:
17788609
result:
ok single line: '17788609'
Test #16:
score: 0
Accepted
time: 4ms
memory: 3856kb
input:
325 4
output:
534470501
result:
ok single line: '534470501'
Test #17:
score: 0
Accepted
time: 0ms
memory: 3868kb
input:
478 1
output:
275981743
result:
ok single line: '275981743'
Test #18:
score: 0
Accepted
time: 0ms
memory: 3792kb
input:
437 3
output:
448979837
result:
ok single line: '448979837'
Test #19:
score: 0
Accepted
time: 0ms
memory: 3748kb
input:
260 3
output:
249722589
result:
ok single line: '249722589'
Test #20:
score: 0
Accepted
time: 0ms
memory: 3800kb
input:
406 2
output:
762498912
result:
ok single line: '762498912'
Test #21:
score: 0
Accepted
time: 0ms
memory: 3872kb
input:
348 2
output:
718553190
result:
ok single line: '718553190'
Test #22:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
350 1
output:
496751081
result:
ok single line: '496751081'
Test #23:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
500 1
output:
154029661
result:
ok single line: '154029661'
Test #24:
score: 0
Accepted
time: 0ms
memory: 3932kb
input:
344 4
output:
864324256
result:
ok single line: '864324256'
Test #25:
score: 0
Accepted
time: 0ms
memory: 3920kb
input:
127 3
output:
306783420
result:
ok single line: '306783420'
Test #26:
score: 0
Accepted
time: 2ms
memory: 3868kb
input:
170 4
output:
138463737
result:
ok single line: '138463737'
Test #27:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
199 3
output:
988988696
result:
ok single line: '988988696'
Test #28:
score: 0
Accepted
time: 0ms
memory: 3868kb
input:
206 3
output:
992080398
result:
ok single line: '992080398'
Test #29:
score: 0
Accepted
time: 0ms
memory: 3784kb
input:
82 2
output:
755922348
result:
ok single line: '755922348'
Test #30:
score: 0
Accepted
time: 0ms
memory: 3920kb
input:
351 2
output:
285073312
result:
ok single line: '285073312'
Test #31:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
274 1
output:
609866862
result:
ok single line: '609866862'
Test #32:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
416 3
output:
49398792
result:
ok single line: '49398792'
Test #33:
score: 0
Accepted
time: 0ms
memory: 3932kb
input:
4 2
output:
2
result:
ok single line: '2'
Test #34:
score: 0
Accepted
time: 0ms
memory: 3800kb
input:
5 2
output:
4
result:
ok single line: '4'
Test #35:
score: 0
Accepted
time: 0ms
memory: 3756kb
input:
6 2
output:
7
result:
ok single line: '7'
Test #36:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
500 2
output:
255888452
result:
ok single line: '255888452'
Test #37:
score: 0
Accepted
time: 0ms
memory: 3924kb
input:
8 3
output:
8
result:
ok single line: '8'
Test #38:
score: 0
Accepted
time: 0ms
memory: 3872kb
input:
9 3
output:
15
result:
ok single line: '15'