CSES - Putka Open 2020 – 2/5 - Results
Submission details
Task:Kortit
Sender:ollpu
Submission time:2020-09-25 18:05:00 +0300
Language:C++ (C++17)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#10.01 s1, 2details
#20.01 s2details

Code

#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  int T;
  cin >> T;
  for (int Ti = 0; Ti < T; ++Ti) {
    int n;
    cin >> n;
    int z[n] {};
    deque<int> o, t;
    for (int i = 0; i < n/2; ++i) {
      int x;
      cin >> x;
      x--;
      o.push_back(x);
      z[x] = 1;
    }
    for (int i = 0; i < n; ++i) {
      if (!z[i]) {
        t.push_back(i);
      }
    }
    int res = 0;
    for (int i = 0; i < n/2; ++i) {
      if (o.back() > t.back()) {
        o.pop_back();
        res++;
      } else {
        o.pop_front();
      }
      t.pop_back();
    }
    cout << res << "\n";
  }
}

Test details

Test 1

Group: 1, 2

Verdict:

input
1000
2
1
6
2 4 5
...

correct output
0
2
0
2
1
...

user output
0
2
0
1
1
...
Truncated

Test 2

Group: 2

Verdict:

input
1000
70
56 23 58 70 2 57 27 61 47 3 42...

correct output
30
15
1
38
29
...

user output
2
3
1
9
7
...
Truncated