2_to_power_n.cpp

#include<bits/stdc++.h>
usingnamespacestd;

#definelllonglong
#definepb push_back
#definemod1000000007
#defineendl'\n'
intfunc(int n){
if(n==0)
return1;
return (2*func(n-1));
}
intmain(){
 cin.tie(0)->sync_with_stdio(0);
int n;cin>>n;
int ans;
 cout<<func(n);


return0;
}