| Task: | Sorting |
| Sender: | andr1y |
| Submission time: | 2021-01-30 13:08:42 +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 | WRONG ANSWER | 0.01 s | 1, 2 | details |
| #4 | WRONG ANSWER | 0.01 s | 1, 2 | details |
Code
// -- //
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll N = 120;
ll a[N];
signed main(){
cin.tie(0);cout.tie(0);ios_base::sync_with_stdio(0);
ll q;
cin >> q;
while(q--){
ll n;
cin >> n;
for(ll i = 0;i<n;i++) cin >> a[i];
if(n>4){
ll e=0;
for(ll i = 0;i<n;i++){
e+=abs(a[i]-i-1);
}
e>>=1;
if(e&1) cout<<"NO\n";
else cout<<"YES\n";
}
else if(n==4&&((a[0]==1&&a[1]==2&&a[2]==3)||(a[0]==3&&a[1]==4&&a[2]==1))) cout<<"YES\n";
else if(n==3&&a[0]==1&&a[1]==2&&a[2]==3) cout<<"YES\n";
else if(n==2&&a[0]==1&&a[1]==2) cout<<"YES\n";
else if(n==1) cout<<"YES\n";
else cout<<"NO\n";
}
}
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: WRONG ANSWER
| 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 NO YES YES ... Truncated |
Test 4
Group: 1, 2
Verdict: WRONG ANSWER
| 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 NO NO NO ... Truncated |