标签：turn class names highlight i++ for space pac int
#include<bits/stdc++.h>
using namespace std;
int main()
{
int i,n,x=1;
cin>>n;
for(i=1;i<n;i++)
{
x=2*(x+1);
}
cout<<x<<endl;
return 0;
}
标签：turn class names highlight i++ for space pac int
原文地址：https://www.cnblogs.com/wbyzs/p/10015497.html
