| Task: | Sorting |
| Sender: | Jarif_Rahman |
| Submission time: | 2021-01-31 11:27:02 +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>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
void solve(){
int n; cin >> n;
vector<int> v(n);
for(int &x: v) cin >> x;
int inv = 0;
for(int i = 1; i < n; i++) for(int j = 0; j < i; j++) if(v[j] > v[i]) inv++;
bool bl = inv%2 == 0;
if(n <= 3 && inv != 0) bl = 0;
cout << (bl ? "YES\n":"NO\n");
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
int T; cin >> T; while(T--) solve();
}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 |