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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#809881	#6506. Chase Game 3	the_fool^#	WA	42ms	3840kb	C++20	699b	2024-12-11 18:02:05	2024-12-11 18:02:09

Judging History

你现在查看的是最新测评结果

[2024-12-11 18:02:09]
评测

测评结果：WA
用时：42ms
内存：3840kb

查看

[2024-12-11 18:02:05]
提交

answer

#include <bits/stdc++.h>
using namespace std;

using LL = long long;

void solve() {
    int n;
    cin>>n;
    vector<int> a(n+1);
    for (int i=1;i<=n;i++)cin>>a[i];
    if (n<=3) {
        cout<<"Yes"<<endl;
        return ;
    }
    for (int i=1;i<=n;i++) {
        if (a[i]==i)continue;
        if (a[i] != i+1 || a[i+1] != i-1) {
            cout<<"No"<<endl;
            return ;
        }
        if (i+2<=n && a[i+2]!=i+2) {
            cout<<"No"<<endl;
            return ;
        }
        i+=2;
    }
    cout<<"Yes"<<endl;
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int T;
    cin>>T;
    while (T--)solve();

}

Source code, Language: C++20

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 0ms

memory: 3832kb

input:

5
2
1 2
3
2 3 1
4
1 4 3 2
5
1 5 2 3 4
6
1 2 3 4 5 6

output:

Yes
Yes
No
No
Yes

result:

ok 5 token(s): yes count is 3, no count is 2

Test #2:

score: 0

Accepted

time: 0ms

memory: 3620kb

input:

output:

Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes

result:

ok 8 token(s): yes count is 8, no count is 0

Test #3:

score: -100

Wrong Answer

time: 42ms

memory: 3840kb

input:

output:

No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No...

result:

wrong answer expected YES, found NO [1st token]