| Task: | Sorting |
| Sender: | zscoder |
| Submission time: | 2021-01-30 09:22:01 +0200 |
| Language: | C++ (C++11) |
| 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>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define fbo find_by_order
#define ook order_of_key
typedef long long ll;
typedef pair<int,int> ii;
typedef vector<int> vi;
typedef long double ld;
typedef pair<ld,ld> state;
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> pbds;
void solve()
{
int n; cin>>n;
vi a(n);
for(int i=0;i<n;i++) cin>>a[i];
for(int i=0;i<n;i++) a[i]--;
int cnt=0;
int lul=0;
for(int i=0;i<n;i+=2)
{
lul++;
if(a[i]%2==0) cnt++;
}
if(cnt%2==lul%2) cout<<"YES\n";
else cout<<"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 |
|---|
| NO YES 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 YES NO 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 |
|---|
| YES YES YES NO YES ... Truncated |