Help me in solving TEAMFOR problem

help
,
1

My issue

My code

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

int main() {
	// your code goes here
	int t;
	cin>>t;
	while(t--)
	{
	    int n ;
	    cin>>n ;
	    
	    string a  , k ;
	    cin>>a>>k ;
	    int p =0 , e =0 , both =0 ;
	    for(int i= 0 ; i<n ;i++) 
	    { 
	       
	        if(((a[i] == k[i] )&& k[i] =='1')  )
	        both++ ;
	        else if(a[i] =='1' )
	             p++;
	             else if( k[i] =='1' )
	             e++ ;
	    }
	    //cout<<"both"<< both <<" p="<<p<<" e="<<e<<"\n" ;
	    if(both ==1 && p == 0 && e==0 ) 
	    {
	        cout<<"0\n" ;
	        continue ;
	    }
	    else 
	    {
	        cout<< min( p , e ) + both <<"\n" ;
	    }
	}
	return 0;
}

Problem Link: TEAMFOR Problem - CodeChef