Submission #2407099
Source Code Expand
#include <iostream> #include <algorithm> #include<cmath> #include<cstring> #include<cstdio> #include<cstdlib> #include<vector> #include<iomanip> #define sqr(x) (x)*(x) using namespace std; long long n,m,i,j,k,l,dp[200005][3][3][2],sum,cnt,cnt2,mod=998244353,ans; string st; int main() { ios_base::sync_with_stdio(0); cin>>st; if (st.length()==2) { if (st[0]==st[1]) cout<<1; else cout<<2; return 0; } if (st.length()==3) { if (st[0]!=st[1]&&st[1]!=st[2]&&st[0]!=st[2]) cout<<3; else if (st[0]==st[1]&&st[1]==st[2]) cout<<1; else if (st[0]!=st[2]) cout<<6; else cout<<7; return 0; } for (i=0;i<st.length();i++) { sum+=st[i]-'a'; if (i&&st[i-1]!=st[i]) cnt++; if (i&&st[i-1]==st[i]) cnt2++; } if (cnt==0) { cout<<1; return 0; } dp[1][0][0][0]=1; dp[1][1][1][0]=1; dp[1][2][2][0]=1; n=st.length(); for (i=2;i<=n;i++) { for (j=0;j<3;j++) { for (k=0;k<3;k++) { for (l=0;l<3;l++) { if (l!=k) { (dp[i][(j+l)%3][l][0]+=dp[i-1][j][k][0])%=mod; (dp[i][(j+l)%3][l][1]+=dp[i-1][j][k][1])%=mod; } else { (dp[i][(j+l)%3][l][1]+=dp[i-1][j][k][0]+dp[i-1][j][k][1])%=mod; } } } } } if (!cnt2) ans=1; else ans=0; for (i=0;i<3;i++) (ans+=dp[n][sum%3][i][1])%=mod; cout<<ans; return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - Normalization |
User | csy2005 |
Language | C++14 (GCC 5.4.1) |
Score | 700 |
Code Size | 1362 Byte |
Status | AC |
Exec Time | 113 ms |
Memory | 28692 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 700 / 700 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | s1.txt, s2.txt, s3.txt, s4.txt |
All | 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, 45.txt, 46.txt, 47.txt, 48.txt, 49.txt, 50.txt, 51.txt, 52.txt, 53.txt, 54.txt, 55.txt, 56.txt, 57.txt, 58.txt, 59.txt, 60.txt, 61.txt, 62.txt, 63.txt, 64.txt, 65.txt, 66.txt, 67.txt, 68.txt, 69.txt, 70.txt, 71.txt, 72.txt, 73.txt, 74.txt, s1.txt, s2.txt, s3.txt, s4.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | AC | 1 ms | 256 KB |
02.txt | AC | 1 ms | 256 KB |
03.txt | AC | 1 ms | 256 KB |
04.txt | AC | 1 ms | 256 KB |
05.txt | AC | 1 ms | 256 KB |
06.txt | AC | 1 ms | 256 KB |
07.txt | AC | 1 ms | 256 KB |
08.txt | AC | 1 ms | 256 KB |
09.txt | AC | 1 ms | 256 KB |
10.txt | AC | 1 ms | 256 KB |
11.txt | AC | 1 ms | 256 KB |
12.txt | AC | 1 ms | 256 KB |
13.txt | AC | 1 ms | 256 KB |
14.txt | AC | 2 ms | 256 KB |
15.txt | AC | 1 ms | 256 KB |
16.txt | AC | 1 ms | 256 KB |
17.txt | AC | 1 ms | 256 KB |
18.txt | AC | 1 ms | 256 KB |
19.txt | AC | 1 ms | 256 KB |
20.txt | AC | 1 ms | 256 KB |
21.txt | AC | 1 ms | 256 KB |
22.txt | AC | 1 ms | 256 KB |
23.txt | AC | 1 ms | 256 KB |
24.txt | AC | 1 ms | 256 KB |
25.txt | AC | 1 ms | 256 KB |
26.txt | AC | 1 ms | 256 KB |
27.txt | AC | 1 ms | 256 KB |
28.txt | AC | 1 ms | 256 KB |
29.txt | AC | 1 ms | 256 KB |
30.txt | AC | 1 ms | 256 KB |
31.txt | AC | 1 ms | 256 KB |
32.txt | AC | 1 ms | 256 KB |
33.txt | AC | 1 ms | 256 KB |
34.txt | AC | 1 ms | 256 KB |
35.txt | AC | 1 ms | 256 KB |
36.txt | AC | 1 ms | 256 KB |
37.txt | AC | 92 ms | 25168 KB |
38.txt | AC | 12 ms | 4352 KB |
39.txt | AC | 7 ms | 1664 KB |
40.txt | AC | 46 ms | 12672 KB |
41.txt | AC | 111 ms | 28308 KB |
42.txt | AC | 101 ms | 27216 KB |
43.txt | AC | 72 ms | 18896 KB |
44.txt | AC | 109 ms | 27856 KB |
45.txt | AC | 59 ms | 16848 KB |
46.txt | AC | 100 ms | 27216 KB |
47.txt | AC | 87 ms | 22992 KB |
48.txt | AC | 55 ms | 14720 KB |
49.txt | AC | 55 ms | 14720 KB |
50.txt | AC | 38 ms | 10624 KB |
51.txt | AC | 60 ms | 16848 KB |
52.txt | AC | 13 ms | 4352 KB |
53.txt | AC | 80 ms | 20944 KB |
54.txt | AC | 25 ms | 6528 KB |
55.txt | AC | 69 ms | 18896 KB |
56.txt | AC | 73 ms | 18896 KB |
57.txt | AC | 11 ms | 4352 KB |
58.txt | AC | 98 ms | 25168 KB |
59.txt | AC | 4 ms | 896 KB |
60.txt | AC | 76 ms | 20944 KB |
61.txt | AC | 2 ms | 384 KB |
62.txt | AC | 1 ms | 384 KB |
63.txt | AC | 2 ms | 592 KB |
64.txt | AC | 2 ms | 592 KB |
65.txt | AC | 2 ms | 592 KB |
66.txt | AC | 2 ms | 512 KB |
67.txt | AC | 113 ms | 28692 KB |
68.txt | AC | 113 ms | 28692 KB |
69.txt | AC | 113 ms | 28692 KB |
70.txt | AC | 113 ms | 28692 KB |
71.txt | AC | 112 ms | 28692 KB |
72.txt | AC | 112 ms | 28692 KB |
73.txt | AC | 112 ms | 28692 KB |
74.txt | AC | 112 ms | 28692 KB |
s1.txt | AC | 1 ms | 256 KB |
s2.txt | AC | 1 ms | 256 KB |
s3.txt | AC | 1 ms | 256 KB |
s4.txt | AC | 1 ms | 256 KB |