Help me in solving LBC19 problem

help
,
1

My issue

what is the wrong of my code

My code

// Update the code below to solve this problem

#include <iostream>
#include <string>
#include<cmath>
using namespace std;

int main() 
{
  int t;
  cin>>t; 
  while(t--)
  {
  int N,X;
  cin>>N>>X;
  int op=pow(2,X);
  cout<<op/(2*N)<<endl;
   }
return 0;
}

Learning course: Solve Programming problems using C++
Problem Link: CodeChef: Practical coding for everyone

2

you misread the problem. Example Testcase:

2
3 17
7 14

Your Solution:

21845
1170

Correct Solution:

16384
128

Your mistake is, that you do not divide correctly. I cannot tell you more without giving you the solution. If you are stuck, you can find a solution here:

minimal fix solution 
#include <iostream>
#include <string>
#include<cmath>
using namespace std;

int main() {
    int t;
    cin>>t; 
    while(t--){
        int N,X;
        cin>>N>>X;
        int op=pow(2,X);
        cout<<op/pow(2,N)<<endl; //fix: divide by pow(2,N) instead of (2*N)
    }
    return 0;
}