Help me in solving AOCC19 problem

help
,
1

My issue

My code

// Update the code below to solve the problem

#include <bits/stdc++.h>
using namespace std;

int main() 
{
	int t;
    cin >> t;
	
	while(t--)
	{
	    int N, A, B;
	    cin >> N >>A >> B;
	    
	    
	}
}

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

2

@sandip_dutta
The logic is count the frequency of A and b in N and then multiply their freq as (f1 * f2) /(N * N);
this is the code for reference

#include <bits/stdc++.h>
using namespace std;

int main() 
{
	int t;
    cin >> t;
	
	while(t--)
	{
	    int N, A, B;
	    cin >> N >>A >> B;
	    int a[N];
	    for(int i=0; i<N; i++)
	        cin>>a[i];
	    double x=0, y=0;
	    for(int i=0; i<N; i++)
	    {
	        if(a[i]==A) x++;
	        if(a[i]==B) y++;
	    }
	   // cout<<x<<" "<<y<<endl;
	    double p=(x*y)/(N*N);
	    cout<<setprecision(10)<<p<<endl;
	}
}