Răspuns :
#include <iostream>using namespace std;
int main(){ int n; cin>>n; for(int i=2;i<=n;i+=2) cout<<i<<' '; cout<<'\n'; for(int i=1;i<=n;i+=2) cout<<i<<' '; return 0;}
int main(){ int n; cin>>n; for(int i=2;i<=n;i+=2) cout<<i<<' '; cout<<'\n'; for(int i=1;i<=n;i+=2) cout<<i<<' '; return 0;}