#include <iostream>
using namespace std;
int tab[(1<<20)+42];
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n,t;
    cin >> n >> t;
    if (t%2 == 0){
        int a;
        for (int i=0; i<(1<<n); i++){
            cin >> a;
            cout << a << " ";
        }
        return 0;
    }
    for (int i=0; i<(1<<n); i++){
        cin >> tab[i];
    }
    for (int i=(1<<n)-1; i>=0; i--){
        cout << tab[i] << " ";
    }
}
        | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | #include <iostream> using namespace std; int tab[(1<<20)+42]; int main(){ ios_base::sync_with_stdio(false); cin.tie(0); int n,t; cin >> n >> t; if (t%2 == 0){ int a; for (int i=0; i<(1<<n); i++){ cin >> a; cout << a << " "; } return 0; } for (int i=0; i<(1<<n); i++){ cin >> tab[i]; } for (int i=(1<<n)-1; i>=0; i--){ cout << tab[i] << " "; } } | 
 
            
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