CSES - Datatähti 2021 loppu - Results
 Task: Järjestäminen Sender: AtskaFin Submission time: 2021-01-23 18:41:00 +0200 Language: C++17 Status: READY Result: 0
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groupverdictscore
#10
#20
Test results
testverdicttimegroup
#10.01 s1, 2details
#20.02 s2details
#30.01 s1, 2details
#40.01 s1, 2details

### Code

```#include <iostream>
#include <vector>

using namespace std;

vector<int> v;

int n;
int main() {
int t; cin >> t;
for (int ddd = 0; ddd < t; ddd++) {
cin>>n;

v.clear();
v.resize(n);
for (int i = 0; i < n; i++) cin >> v[i];

if (n == 1) {
cout << "YES";
} else if (n == 2) {
if (v[0] == 1) {
cout << "YES";
} else {
cout << "NO";
}
} else if (n == 3) {
if (v[0] == 1 && v[1] == 2) {
cout << "YES";
} else {
cout << "NO";
}
} else if (n == 4) {
if ((v[0] == 1 && v[1] == 2 && v[2] == 3 && v[3] == 4)
|| (v[0] == 3 && v[1] == 4 && v[2] == 1 && v[3] == 2)) {
cout << "YES";
} else {
cout << "NO";
}
} else {
cout << "YES";
}

cout << "\n";
}
}```

### Test details

Group: 1, 2

Verdict:

input
153
1
1
2
1 2
...

correct output
YES
YES
NO
NO
NO
...

user output
YES
YES
NO
NO
NO
...
Truncated

#### Test 2

Group: 2

Verdict:

input
1000
59
35 29 32 50 11 15 9 21 19 45 2...

correct output
YES
NO
YES
NO
YES
...

user output
YES
YES
YES
YES
YES
...
Truncated

Group: 1, 2

Verdict:

input
720
6
1 6 4 5 2 3
6
6 3 2 1 5 4
...

correct output
YES
NO
NO
NO
YES
...

user output
YES
YES
YES
YES
YES
...
Truncated

Group: 1, 2

Verdict:

input
1000
8
7 4 2 8 6 3 5 1
8
3 8 2 7 5 4 6 1
...

correct output
NO
NO
YES
NO
YES
...

user output
YES
YES
YES
YES
YES
...
Truncated