View Code of Problem 73

    #include<iostream>
#include<algorithm>
     
    using namespace std;
     
    int main()
    {
      
    	int n;
		cin>>n;
      	int x=1;
      	n--;
      	while(n--)
            {
            	x=(x+1)*2;
            }
      	cin>>x;
    	return 0;
    }

		return 0; 
    }
/*
Main.cc:21:3: error: expected unqualified-id before 'return'
   return 0;
   ^~~~~~
Main.cc:22:5: error: expected declaration before '}' token
     }
     ^
*/