Help me in solving AOCC19 problem

help
,
1

My issue

Why am I getting the output as 0 , 0? It should be 1.000000 and 0.250000.

inputs are —>
2
5 1 1
1 1 1 1 1
2 1 1
1 2

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;
	    int num[N];
	    for(int i = 0 ; i<N ; i++){
	        cin >> num[i];
	    }
	   int k = 0;
	   int pa=0;
	   while (k<=N){
	    if(A == num[k]){
	        pa++;
	     } 
	    k++; 
	   }
	   int j= 0;
	   int pb=0;
	   while ( j<=N){
	    if(B == num[k]){
	        pb++;
	     } 
	    j++; 
	   }
	    
	  float win = float ((pa/N)*(pb/N));
	  cout <<win<<endl;
	   
	    
	    
	    
	}
}

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