#include <iostream>
using namespace std;
int n, t, a[1200000];
int main(){
    ios_base::sync_with_stdio(0);
    cin >> n >> t;
    for(int i = 0; i < (1 << n); ++i) cin >> a[i];
    if(t % 2)
        for(int i = (1 << n) - 1; i >= 0; --i) cout << a[i] << " ";
    else
        for(int i = 0; i < (1 << n); ++i) cout << a[i] << " ";
    cout << endl;
    return 0;
}
        | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | #include <iostream> using namespace std; int n, t, a[1200000]; int main(){ ios_base::sync_with_stdio(0); cin >> n >> t; for(int i = 0; i < (1 << n); ++i) cin >> a[i]; if(t % 2) for(int i = (1 << n) - 1; i >= 0; --i) cout << a[i] << " "; else for(int i = 0; i < (1 << n); ++i) cout << a[i] << " "; cout << endl; return 0; } | 
 
            
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