Help me in solving RUNCOMPARE problem

help
, ,
1

My issue

Hii,
My approach is I’m traversing a loop from 0 to n-1 and applying the condition that if(A[i]>2B[i] or B[i]>2A[i]) and in cout I’m doing n-unhappy.

My code

#include <iostream>
using namespace std;

int main() {
	// your code goes here
	int t;
	cin>>t;
	while(t--)
	{
	    int n,unhappy=0;
	    cin>>n;
	    int A[n],B[n];
	    for(int i=0;i<n;i++)
	    {
	        cin>>A[i];
	        cin>>B[i];
	    }
	    
	    for(int i=0;i<n;i++)
	    {
	        if(A[i]>(2*B[i]) or B[i]>(2*A[i]))
	        {
	            unhappy++;
	        }
	       

	    }
	    std::cout << n-unhappy << std::endl;
	}
	return 0;
}

Learning course: Arrays using C++
Problem Link: CodeChef: Practical coding for everyone

2

@anujraghuwansh
Your logic is absolutely right .
U r making mistake in the way u are taking inputs.
First u have to take input of whole A and after that u have to take input of whole B.
U can’t take simultaneous inputs.