| Task: | Sorting |
| Sender: | andr1y |
| Submission time: | 2021-01-30 15:34:24 +0200 |
| Language: | 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 | 0.02 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];
ll k[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 = 1;i<=n;i++) cin >> a[i];
for(ll i = 1;i<=n;i++){
ll e = a[i];
if(e>i){
k[i]=e-i;
}else{
k[i]=i-e;
for(ll j = 1;j<i;j++){
if(a[j]>a[i]&&k[j]>0) k[j]--;
}
}
}
ll res=0;
for(ll i = 1;i<=n;i++) res+=abs(k[i]);
if(res&1) cout<<"NO\n";
else cout<<"YES\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 YES ... |
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 |
|---|
| NO NO YES YES YES ... |
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 NO YES ... |
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 YES NO NO ... |