#include<iostream>
#include<cstdio>
using namespace std;
int n, t, dn=1;
int tab[1050100];
int main()
{
    scanf("%d%d", &n, &t);
    for(int i=1;i<=n;i++)dn*=2;
    for(int i=1;i<=dn;i++)scanf("%d", &tab[i]);
    if(t%2==0)
    {
        for(int i=1;i<=dn;i++)printf("%d ", tab[i]);
    }
    else
    {
        for(int i=dn;i>=1;i--)printf("%d ", tab[i]);
    }
    printf("\n");
    return 0;
}
        | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | #include<iostream> #include<cstdio> using namespace std; int n, t, dn=1; int tab[1050100]; int main() { scanf("%d%d", &n, &t); for(int i=1;i<=n;i++)dn*=2; for(int i=1;i<=dn;i++)scanf("%d", &tab[i]); if(t%2==0) { for(int i=1;i<=dn;i++)printf("%d ", tab[i]); } else { for(int i=dn;i>=1;i--)printf("%d ", tab[i]); } printf("\n"); return 0; } | 
 
            
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