#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#include <bits/stdc++.h>
using namespace std;
#define sqr 400
#define mid (l+r)/2
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define ins insert
#define era erase
#define C continue
#define mem(dp,i) memset(dp,i,sizeof(dp))
#define mset multiset
typedef long long ll;
typedef short int si;
typedef long double ld;
typedef pair<int,int> pi;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
const ll mod=1e9+7;
const ll inf= 4e18;
const ld pai=acos(-1);
#include "robots.h"
int szw,szl,n;
priority_queue<int> pq;
int wl[100009],sl[100009];
pi r[1000009];
int check ( int x ) {
int j = 0 ;
while ( pq .size() ){
pq.pop () ;
}
for ( int i = 0 ;i < szw ;i ++ ) {
while ( j < n && r[j].fi<wl[i] ) {
pq.push ( r[j].se ) ;
j ++ ;
}
for ( int num = 0 ; num < x ; num ++ ){
if ( ! pq.size() ) break ;
pq .pop ();
}
}
for ( int i = j ; i < n ; i ++ ) {
pq.push( r[j].se ) ;
}
for ( int i = szl-1 ; i >= 0 ;i -- ){
for ( int num = 0 ; num < x ; num ++ ){
if ( pq.size() && pq.top () < sl[i] ) pq.pop() ;
else break ;
}
}
return pq.empty() ;
}
int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
szw=A , szl = B , n = T ;
for ( int i =0 ;i < n ;i ++ ) {
r[i]= { W[i] , S[i] } ;
}
for ( int i =0 ;i < szw ;i ++ ){
wl[i] = X[i];
}
for ( int i =0 ;i < szl ;i ++ ){
sl[i] = Y[i];
}
sort ( wl , wl+szw ) , sort ( sl , sl+szl ) , sort ( r , r+n ) ;
int l = 0 , r = n +1 ;
while ( r - l > 1 ) {
if ( check ( mid ) ) r = mid;
else l = mid;
}
if ( r == n+1 ) return -1 ;
return r ;
}
