CSES - Putka Open 2020 – 2/5 - Results
Submission details
Task:Kortit
Sender:Lieska
Submission time:2020-09-25 18:04:47 +0300
Language:C++ (C++17)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED23
#2ACCEPTED77
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2details
#2ACCEPTED0.02 s2details

Code

#include <bits/stdc++.h>
using namespace std;
void tapaus(){
int n;
cin >> n;
set<int> s, v;
int r[111]={};
for (int i=1; i<=n/2; ++i){
int a;
cin >> a;
s.insert(a);
r[a]=1;
}
for (int i=1; i<=n; ++i){
if (r[i]==0) v.insert(i);
}
int ans=0;
for (int i=1; i<=n/2; ++i){
auto it=v.end();
it--;
auto ir=s.end();
ir--;
if (*ir>*it){
ans++;
s.erase(*ir);
}
else{
ir=s.begin();
s.erase(*ir);
}
v.erase(*it);
}
cout << ans << "\n";
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
int t;
cin >> t;
while (t--) tapaus();
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
1000
2
1
6
2 4 5
...

correct output
0
2
0
2
1
...

user output
0
2
0
2
1
...
Truncated

Test 2

Group: 2

Verdict: ACCEPTED

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

correct output
30
15
1
38
29
...

user output
30
15
1
38
29
...
Truncated