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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#870019#10041. Periodic Sequencerotcar07WA 8ms15396kbC++23759b2025-01-25 14:26:402025-01-25 14:27:05

Judging History

你现在查看的是最新测评结果

  • [2025-01-25 14:27:05]
  • 评测
  • 测评结果:WA
  • 用时:8ms
  • 内存:15396kb
  • [2025-01-25 14:26:40]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
constexpr int N=5e5+5;
int n,m,a[N],b[N];
typedef unsigned long long ull;
constexpr ull bas=233,mod=1000000007;
ull bs[N],hsh[N];
int main(){
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin>>n>>m;
    for(int i=1;i<=n;i++) cin>>a[i];
    for(int i=1;i<=m;i++) cin>>b[i];
    if(n<m) swap(n,m),swap(a,b);
    for(int i=m+1;i<=n;i++) if(a[i]!=a[i-m]) return puts("NO"),0;
    ull w=0;
    for(int i=1;i<=m;i++) w=(w*bas+b[i])%mod;
    for(int i=bs[0]=1;i<=m;i++) bs[i]=bs[i-1]*bas%mod;
    for(int i=1;i<=m;i++) hsh[i]=(hsh[i-1]*bas+a[i])%mod;
    for(int i=1;i<=m;i++){
        if(((hsh[m]-hsh[i]*bs[m-i]%mod+mod)*bs[i]+hsh[i])%mod==w) return puts("YES"),0;
    }
    puts("NO");
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 9824kb

input:

6 3
1 5 6 1 5 6
6 1 5

output:

YES

result:

ok answer is YES

Test #2:

score: 0
Accepted
time: 0ms
memory: 7776kb

input:

7 3
1 5 6 1 5 6 7
5 6 7

output:

NO

result:

ok answer is NO

Test #3:

score: 0
Accepted
time: 0ms
memory: 10892kb

input:

2 3
3 3
3 3 3

output:

YES

result:

ok answer is YES

Test #4:

score: 0
Accepted
time: 0ms
memory: 9824kb

input:

3 2
3 3 3
3 3

output:

YES

result:

ok answer is YES

Test #5:

score: 0
Accepted
time: 2ms
memory: 9968kb

input:

27 81
3 3 9 6 5 8 3 8 7 0 6 3 2 0 5 1 0 5 9 0 3 6 8 1 1 3 5
3 9 6 5 8 3 8 7 0 6 3 2 0 5 1 0 5 9 0 3 6 8 1 1 3 5 3 3 9 6 5 8 3 8 7 0 6 3 2 0 5 1 0 5 9 0 3 6 8 1 1 3 5 3 3 9 6 5 8 3 8 7 0 6 3 2 0 5 1 0 5 9 0 3 6 8 1 1 3 5 3

output:

YES

result:

ok answer is YES

Test #6:

score: 0
Accepted
time: 0ms
memory: 9828kb

input:

42 42
8 1 3 2 8 0 1 1 9 2 4 8 9 2 8 1 3 2 8 0 1 1 9 2 4 8 9 2 8 1 3 2 8 0 1 1 9 2 4 8 9 2
3 2 8 0 1 1 9 2 4 8 9 2 8 1 3 2 8 0 1 1 9 2 4 8 9 2 8 1 3 2 8 0 1 1 9 2 4 8 9 2 8 1

output:

YES

result:

ok answer is YES

Test #7:

score: 0
Accepted
time: 0ms
memory: 9828kb

input:

55 22
3 9 5 8 5 2 4 6 4 3 9 3 9 5 8 5 2 4 6 4 3 9 3 9 5 8 5 2 4 6 4 3 9 3 9 5 8 5 2 4 6 4 3 9 3 9 5 8 5 2 4 6 4 3 9
4 6 4 3 9 3 9 5 8 5 2 4 6 4 3 9 3 9 5 8 5 2

output:

YES

result:

ok answer is YES

Test #8:

score: 0
Accepted
time: 1ms
memory: 7652kb

input:

27 81
9 6 8 1 4 2 3 2 6 0 6 0 1 2 0 0 8 8 0 9 2 7 5 9 1 7 2
2 7 5 9 1 7 2 9 6 1 1 4 2 3 2 6 0 6 0 1 2 0 0 8 8 0 9 2 7 5 9 1 7 2 9 6 1 1 4 2 3 2 6 0 6 0 1 2 0 0 8 8 0 9 2 7 5 9 1 7 2 9 6 1 4 4 2 3 2 6 0 6 0 1 2 0 0 8 8 0 9

output:

NO

result:

ok answer is NO

Test #9:

score: 0
Accepted
time: 0ms
memory: 9824kb

input:

69 69
9 0 6 7 3 4 8 0 7 1 5 3 7 4 0 7 8 9 2 4 3 6 9 9 0 6 8 3 4 8 0 7 1 5 3 7 4 0 7 8 9 2 4 3 6 9 9 0 6 7 3 4 8 0 7 1 5 3 7 4 0 7 8 9 2 4 3 6 9
4 0 7 8 9 2 4 3 6 9 9 0 6 7 3 4 8 0 7 1 5 3 7 4 0 7 8 9 2 4 3 6 9 9 0 6 7 3 4 8 0 7 1 5 3 7 4 0 7 8 9 2 4 8 6 9 9 0 6 7 3 4 8 0 7 1 5 3 7

output:

NO

result:

ok answer is NO

Test #10:

score: 0
Accepted
time: 3ms
memory: 10212kb

input:

63088 63088
2 1 1 0 9 4 3 0 1 0 7 0 2 8 6 9 8 9 5 1 5 1 0 7 7 1 5 0 9 0 4 1 3 3 7 6 2 8 3 2 2 6 7 6 9 8 7 3 8 3 1 4 0 7 8 3 7 2 6 1 1 3 4 9 1 2 3 1 1 6 4 7 5 7 1 2 2 0 5 8 6 0 2 0 4 2 9 9 5 9 1 8 1 5 9 0 1 4 7 6 0 6 3 0 0 5 1 5 1 7 6 2 7 3 8 1 6 1 4 1 6 7 4 2 4 3 1 3 3 6 6 3 5 3 5 1 5 0 4 5 7 4 6 1 ...

output:

NO

result:

ok answer is NO

Test #11:

score: 0
Accepted
time: 3ms
memory: 9952kb

input:

32051 32051
3 5 1 3 5 1 5 8 2 6 9 4 8 0 0 2 4 4 7 8 9 6 1 4 2 5 3 0 5 4 2 6 4 3 1 1 6 0 5 1 6 2 9 3 2 5 0 7 9 1 3 0 9 1 5 0 7 4 3 5 0 6 5 6 2 3 0 7 1 2 7 2 0 5 8 5 1 2 9 5 0 0 2 6 2 7 2 4 0 9 7 4 9 8 7 0 7 6 8 3 4 9 6 7 4 9 1 1 6 5 8 4 5 8 5 2 9 1 0 2 7 1 7 0 6 9 3 1 0 6 4 3 7 8 3 5 8 4 2 1 5 6 3 5 ...

output:

NO

result:

ok answer is NO

Test #12:

score: 0
Accepted
time: 3ms
memory: 7524kb

input:

30020 60040
4 5 4 6 4 6 8 3 1 3 3 4 7 3 4 5 5 5 5 7 3 3 6 5 5 2 1 2 6 5 0 4 3 0 9 0 6 0 3 0 7 1 1 7 6 4 3 1 4 3 5 6 1 2 4 9 2 9 8 3 2 4 2 5 5 3 3 8 2 7 4 1 3 0 5 0 7 7 8 3 5 1 2 0 8 2 9 9 7 8 9 1 6 6 5 4 3 3 0 6 3 2 0 6 6 8 2 6 2 2 2 6 8 4 2 5 9 8 6 2 9 9 0 2 4 4 3 6 0 8 5 7 8 4 0 7 3 9 9 7 2 8 6 1 ...

output:

NO

result:

ok answer is NO

Test #13:

score: 0
Accepted
time: 3ms
memory: 7840kb

input:

31549 63098
1 8 9 8 8 5 9 5 3 6 2 7 6 7 4 5 9 9 4 1 5 9 1 2 4 6 2 8 0 2 6 0 1 1 8 2 6 2 1 9 4 7 0 8 6 9 1 7 3 4 1 0 1 4 7 9 6 4 5 5 9 7 3 8 7 0 0 3 1 2 5 5 8 8 1 4 9 0 3 5 9 2 8 1 1 7 7 6 7 3 4 2 8 8 7 4 7 5 4 5 1 6 3 5 4 7 0 4 4 2 5 2 4 6 2 0 0 1 0 0 3 2 8 7 6 4 1 8 8 7 8 4 7 9 3 5 2 9 2 4 1 8 8 8 ...

output:

NO

result:

ok answer is NO

Test #14:

score: 0
Accepted
time: 4ms
memory: 10212kb

input:

62252 62252
0 3 0 7 2 4 7 5 3 7 6 3 0 6 8 0 5 5 0 2 1 3 2 2 7 6 5 9 3 5 4 9 2 7 6 1 8 3 0 8 1 1 9 4 5 7 3 3 9 0 7 9 9 8 9 6 0 7 2 2 6 3 7 1 8 0 3 2 3 9 2 5 8 2 9 6 5 1 5 0 4 1 4 2 4 6 2 3 0 9 1 7 0 9 6 0 4 5 9 6 4 6 3 4 7 6 4 8 5 6 9 6 5 2 1 8 0 4 9 3 8 1 8 6 4 1 3 7 5 7 3 4 8 9 6 9 2 3 7 5 4 9 6 7 ...

output:

NO

result:

ok answer is NO

Test #15:

score: 0
Accepted
time: 4ms
memory: 7784kb

input:

62366 31183
7 6 7 3 3 0 8 1 7 0 4 7 2 4 0 5 1 0 8 5 2 5 5 8 2 4 8 2 0 6 3 6 9 6 6 9 9 0 5 9 2 9 3 4 9 3 1 8 6 1 3 3 6 4 2 8 3 1 0 9 0 2 8 4 1 2 7 0 8 5 8 8 3 7 1 7 1 5 0 8 3 0 7 0 8 6 1 7 3 1 2 1 2 6 6 2 5 9 5 0 7 6 6 7 8 3 8 0 7 2 8 4 7 5 8 2 8 4 3 5 0 2 1 6 4 6 2 9 8 0 7 8 2 6 8 8 4 1 7 0 3 4 4 2 ...

output:

NO

result:

ok answer is NO

Test #16:

score: 0
Accepted
time: 2ms
memory: 9828kb

input:

30174 30174
9 5 0 8 6 1 1 1 5 8 9 9 6 7 9 6 6 4 8 6 4 0 5 2 6 5 0 3 3 7 0 4 3 2 6 7 0 9 5 8 1 7 2 4 9 9 3 0 9 3 1 5 5 6 0 1 7 4 4 2 8 0 0 9 7 1 7 8 6 9 3 2 5 6 2 1 8 9 8 9 6 9 6 9 3 3 0 4 4 2 3 2 9 2 4 3 8 2 1 9 7 0 9 3 7 2 3 5 2 8 2 9 4 2 7 4 1 7 7 8 9 2 0 4 7 8 6 3 1 7 8 6 5 4 8 2 5 7 8 1 9 3 2 0 ...

output:

NO

result:

ok answer is NO

Test #17:

score: 0
Accepted
time: 3ms
memory: 7784kb

input:

62098 31049
5 0 7 0 4 6 2 7 1 4 3 0 9 0 5 4 4 3 0 8 8 7 0 3 2 1 6 6 5 6 4 8 5 3 3 0 9 2 9 8 3 7 7 8 4 3 1 9 8 7 3 2 4 0 7 2 2 3 9 3 4 2 6 7 7 1 7 6 1 6 1 8 0 5 1 2 8 0 8 2 3 7 7 3 4 2 5 0 2 0 3 3 4 3 2 9 9 4 3 8 4 9 6 9 3 6 3 1 9 1 8 0 4 4 6 3 3 7 9 8 3 3 1 1 9 2 3 6 3 0 0 2 1 3 3 3 7 9 8 5 5 4 2 5 ...

output:

NO

result:

ok answer is NO

Test #18:

score: 0
Accepted
time: 3ms
memory: 7780kb

input:

60906 30453
8 2 8 2 5 3 7 2 4 2 6 9 6 6 2 6 9 6 3 6 3 5 9 7 2 7 9 2 1 7 9 2 7 3 7 7 8 7 1 8 5 8 3 7 2 3 7 2 7 4 5 7 0 7 2 4 9 8 3 9 0 0 6 7 3 1 7 8 3 2 5 9 5 8 7 5 3 5 2 4 9 2 6 9 5 3 5 2 9 5 6 5 3 3 1 2 9 4 4 2 6 2 4 4 6 3 4 4 6 6 2 8 1 6 3 8 4 8 1 5 2 5 8 4 1 3 6 7 6 9 5 0 7 5 1 1 1 2 0 7 0 9 0 9 ...

output:

NO

result:

ok answer is NO

Test #19:

score: 0
Accepted
time: 3ms
memory: 7708kb

input:

31036 62072
6 6 2 8 4 7 6 0 0 8 2 6 6 8 3 5 8 8 0 9 4 3 8 9 1 9 6 7 1 0 0 7 5 1 9 4 5 8 5 3 9 1 9 3 0 6 1 8 5 5 3 7 8 5 3 8 2 7 2 1 1 3 4 7 1 4 0 8 6 7 0 5 3 3 8 2 3 6 3 2 8 5 6 1 2 6 7 9 9 0 0 6 1 8 4 3 8 4 8 5 0 5 5 2 7 6 8 3 6 8 8 7 5 6 3 8 7 1 6 9 2 0 6 8 0 1 3 6 4 4 4 5 1 5 5 5 1 2 7 6 5 4 1 1 ...

output:

NO

result:

ok answer is NO

Test #20:

score: -100
Wrong Answer
time: 8ms
memory: 15396kb

input:

99999 100000
5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5...

output:

YES

result:

wrong answer expected NO, found YES