| Task: | Sorting |
| Sender: | mofk |
| Submission time: | 2021-01-30 16:45:07 +0200 |
| Language: | C++ (C++17) |
| Status: | READY |
| Result: | 0 |
| group | verdict | score |
|---|---|---|
| #1 | WRONG ANSWER | 0 |
| #2 | WRONG ANSWER | 0 |
| test | verdict | time | group | |
|---|---|---|---|---|
| #1 | WRONG ANSWER | 0.01 s | 1, 2 | details |
| #2 | WRONG ANSWER | 0.01 s | 2 | details |
| #3 | ACCEPTED | 0.01 s | 1, 2 | details |
| #4 | ACCEPTED | 0.01 s | 1, 2 | details |
Code
#include <bits/stdc++.h>
using namespace std;
int main(void) {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int ntest;
cin >> ntest;
while (ntest--) {
int n;
cin >> n;
vector<int> a(n);
int ans = 0;
for (int i = 0; i < n; ++i) {
cin >> a[i];
for (int j = 0; j < i; ++j) if (a[j] > a[i]) ++ans;
}
if (n <= 4) cout << (ans % 4 ? "NO" : "YES") << endl;
else cout << (ans % 2 ? "NO" : "YES") << endl;
}
return 0;
}
Test details
Test 1
Group: 1, 2
Verdict: WRONG ANSWER
| 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: WRONG ANSWER
| input |
|---|
| 1000 59 35 29 32 50 11 15 9 21 19 45 2... |
| correct output |
|---|
| YES NO YES NO YES ... |
| user output |
|---|
| YES NO YES NO YES ... Truncated |
Test 3
Group: 1, 2
Verdict: ACCEPTED
| 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 NO NO NO YES ... Truncated |
Test 4
Group: 1, 2
Verdict: ACCEPTED
| 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 |
|---|
| NO NO YES NO YES ... Truncated |