#include<bits/stdc++.h>
#define FOR(i,s,e) for(int i=(s);i<=(e);i++)
#define FORD(i,s,e) for(int i=(s);i>=(e);i--)
#define FOREACH(i,c) for( __typeof((c).begin()) i=(c).begin();i!=(c).end();++i)
#define ALL(k) (k).begin(),(k).end()
#define e1 first 
#define e2 second
#define mp make_pair
#define pb push_back
#define eb emplace_back 
using namespace std;
typedef long long LL;
typedef pair<int,int> PII;
typedef pair<LL,LL> PLL;
const bool print=false;
const int MAXN=2000111;
int t[MAXN];
/*int readint(){
	char a=getchar_unlocked();
	while(a<'0'||a>'9') a=getchar_unlocked();
	int wyn=0;
	while('0'<=a&&a<='9') wyn=10*wyn+a-'0',a=getchar_unlocked();
	return wyn;
}
char readsgn(){
	char a=getchar_unlocked();
	while(a!='<'&&a!='>') a=getchar_unlocked();
	return a;
}*/
main(){
	int n0,ts;scanf("%d%d",&n0,&ts);
	int n=1;FOR(i,1,n0) n*=2;
	FOR(i,1,n) scanf("%d",&t[i]);
	if(ts%2) reverse(t+1,t+n+1);
	FOR(i,1,n) printf("%d ",t[i]);
	puts("");
}
        | 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 28 29 30 31 32 33 34 35 36 37 38 | #include<bits/stdc++.h> #define FOR(i,s,e) for(int i=(s);i<=(e);i++) #define FORD(i,s,e) for(int i=(s);i>=(e);i--) #define FOREACH(i,c) for( __typeof((c).begin()) i=(c).begin();i!=(c).end();++i) #define ALL(k) (k).begin(),(k).end() #define e1 first #define e2 second #define mp make_pair #define pb push_back #define eb emplace_back using namespace std; typedef long long LL; typedef pair<int,int> PII; typedef pair<LL,LL> PLL; const bool print=false; const int MAXN=2000111; int t[MAXN]; /*int readint(){ char a=getchar_unlocked(); while(a<'0'||a>'9') a=getchar_unlocked(); int wyn=0; while('0'<=a&&a<='9') wyn=10*wyn+a-'0',a=getchar_unlocked(); return wyn; } char readsgn(){ char a=getchar_unlocked(); while(a!='<'&&a!='>') a=getchar_unlocked(); return a; }*/ main(){ int n0,ts;scanf("%d%d",&n0,&ts); int n=1;FOR(i,1,n0) n*=2; FOR(i,1,n) scanf("%d",&t[i]); if(ts%2) reverse(t+1,t+n+1); FOR(i,1,n) printf("%d ",t[i]); puts(""); } | 
 
            
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