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Datatähti 2021 loppu

Järjestäminen

  • Start: 2021-01-23 16:00:00
  • End: 2021-01-23 20:00:00
CSES - Datatähti 2021 loppu - Results
Submission details
Task:Järjestäminen
Sender:hltk
Submission time:2021-01-23 16:30:24 +0200
Language:C++ (C++17)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#10.01 s1, 2details
#20.01 s2details
#30.01 s1, 2details
#40.01 s1, 2details

Code

#include <algorithm>
#include <iostream>
#include <vector>
using namespace std;

bool solve() {
	int n;
	cin >> n;

	vector<int> a(n);
	for (auto& x : a) cin >> x, x--;

	for (int i = 0; i < n - 1; ++i) {
		for (int j = 0; j < n - 1; ++j) {
			if (a[j] == i) {
				swap(a[i], a[j]);
				swap(a[i + 1], a[j + 1]);
				break;
			}
		}
	}

	return is_sorted(a.begin(), a.end());
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	int t;
	cin >> t;
	for (int i = 0; i < t; ++i) cout << (solve() ? "YES" : "NO") << '\n';
}

Test details

Test 1

Group: 1, 2

Verdict:

input
153
1
1
2
1 2
...
view save

correct output
YES
YES
NO
NO
NO
...
view save

user output
YES
YES
NO
NO
YES
...
Truncated

Test 2

Group: 2

Verdict:

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

correct output
YES
NO
YES
NO
YES
...
view save

user output
NO
NO
NO
NO
NO
...
Truncated

Test 3

Group: 1, 2

Verdict:

input
720
6
1 6 4 5 2 3
6
6 3 2 1 5 4
...
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correct output
YES
NO
NO
NO
YES
...
view save

user output
NO
NO
NO
NO
NO
...
Truncated

Test 4

Group: 1, 2

Verdict:

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

correct output
NO
NO
YES
NO
YES
...
view save

user output
NO
NO
NO
NO
NO
...
Truncated

Tasks

A Suuremmat-B Kolmijako-C Järjestäminen-D Etäisyydet-E Koodarit-F Murtoviiva-

Submissions (hltk)

2021-01-23 17:44:59 1002021-01-23 17:37:28 02021-01-23 17:36:47 02021-01-23 17:35:51 02021-01-23 16:30:24 0