Why is this not working?

proxy.cpp

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main() {
    ll t;
    cin>>t;
    while(t--){
        ll n;
        cin>>n;
        if(n <= 4) { cout<<-1<<endl; break; }
        char ch;
        int count=0;
        int avail[n] = {0};
        for(int i=0;i<n;i++){ 
            cin>>ch;
            if(ch == 'P') {
                count++;
                avail[i] = 1;
                }
        }
        double att;
        att = (count * (1.00)) / n;
        
        if(att > 0.75) {cout<<0<<endl; break; }
        for(int i=2;i<(n-2);i++)
        {
            if(avail[i] == 0){
                if(avail[i-1] == 1 || avail[i-2] == 1)
                {
                    if(avail[i+1] == 1 || avail[i+2] == 1) avail[i] = 2;
                }
            }
        }
      
        
        int j = 0;
        for(int i=2;i<(n-2);i++)
        {
            
            if(avail[i] == 2 && att < 0.75)
            {
                att = att + (1.00)/n;
                j++;
            }
            if( att >= 0.75) break;
            
        }
        if(j != 0){
            cout<<j<<endl;
        }else {
            cout<<-1<< endl;
        }
        
    }
	// your code goes here
	return 0;
}

proxy2.cpp

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main() {
    ll t;
    cin>>t;
    while(t--){
        ll n;
        cin>>n;
        string ch;
        int count=0;
        cin>>ch;
        int reqa=ceil(n*0.75);
        int present=0;
        for(int i=0;i<n;i++)
                if(ch[i]=='P') present++;
    
    if(present>=reqa){
        cout<<0<<endl;
        break;
    }
    int c=0;
    for(int i=2;i<(n-2);i++){
        if(ch[i]=='A'&&(ch[i-1]=='P'||ch[i-2]=='P')&&(ch[i+1]=='P'||ch[i+2]=='P')){
            c++;
            if(present+c==reqa){
            break; 
            }
        }

    }
    if(c!=0) cout<<c<<endl;
    else cout<<-1<<endl;
        
    }
	// your code goes here
	return 0;
}