1743B - Permutation Value - CodeForces Solution

greedy

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Python Code: 

for _ in range(int(input())):
    n=int(input())
    
    ans=[1]
    
    for j in range(3,n+1):
        ans.append(j)
        
    ans.append(2)
    
    for i in range(n):
        if(i<n-1):
            print(ans[i],end=' ')
        else:
            print(ans[i])

C++ Code: 

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main() {
    ll t;
    cin>>t;
    while(t--){
      ll n;
      cin>>n;
      ll a[n];
      ll i=0;
      ll j=1;
      while(i<n/2){
          a[i]=j;
          j++;
          a[n-1-i]=j;
          j++;
          i++;
      }
      if(n%2==1){
          a[n/2]=n;
      }
      for(ll k=0;k<n;k++){
          cout<<a[k]<<" ";
      }
      cout<<endl;
    }
	return 0;
}


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