Showing wrong answer

Why this code is showing as the wrong answer in the question code DIVBYI

#include <bits/stdc++.h>
using namespace std;
#define fast_cin ios_base::sync_with_stdio(false);cin.tie(NULL)
typedef long long ll;

void fun(){
int n; cin>>n;
int j=n,k=1;
for(int i=1;i<=n;i++){
if(i%2!=0) {
cout<<j<<" “;
j–;
}
else{
cout<<k<<” ";
k++;
}

}

}

int main() {
fast_cin;
ll t; cin>>t;
while(t–){
fun();
cout<<"\n";
}
return 0;
}

@kabira2108 - you should be able to ask the doubt solvers here - CodeChef