#include "robots.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define F first
#define S second
#define enter cout<<'\n';
int putaway(int a, int b, int t, int x[], int y[], int w[], int s[])
{
sort(x,x+a,greater<ll>());
sort(w,w+t,greater<ll>());
if(x[0]<=w[0])
return -1;
ll idx=0;
ll arr[a+1];
for(int i=0;i<a;i++)
{
while(idx<t && w[idx]>=x[i])
{
idx++;
}
arr[i]=idx;
}
arr[a]=t;
ll pre=arr[0],rest=0,count=1;
ll time=0;
for(int i=1;i<=a;i++)
{
if(arr[i]==pre){
count++;
continue;
}
ll now=(arr[i]-pre)/count;
ll rem=(arr[i]-pre)%count;
if(rem){
now++;
rem=count-rem;
}
if(time==0)
{
count=1;
time=now;
rest+=rem;
pre=arr[i];
continue;
}
if(now<=time)
{
if(now<time)
rest+=count*(time-now);
else
rest+=rem;
count=1;
pre=arr[i];
continue;
}
ll toys=(arr[i]-pre)-count*time-rest;
if(toys<=0)
{
count=1;
rest=-toys;
pre=arr[i];
continue;
}
now=toys/(i+1);
if(toys%(i+1))
{
now++;
rest=i+1-toys%(i+1);
}
else
rest=0;
time=now;
pre=arr[i];
count=1;
}
return time;
}
