CSES - Datatähti Open 2021

CSES - Datatähti Open 2021 - Results

Submission details
Task:	Sorting
Sender:	Jarif_Rahman
Submission time:	2021-01-31 11:27:02 +0200
Language:	C++ (C++17)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	WRONG ANSWER	0
#2	WRONG ANSWER	0

Test results
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 ...` view save

correct output
`YES YES NO NO NO ...` view save

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...` view save

correct output
`YES NO YES NO YES ...` view save

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 ...` view save

correct output
`YES NO NO NO YES ...` view save

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 ...` view save

correct output
`NO NO YES NO YES ...` view save

user output
`NO NO YES NO YES ...` Truncated

Datatähti Open 2021

Sorting

Code

Test details

Test 1

Test 2

Test 3

Test 4

Tasks

Submissions (Jarif_Rahman)