#include "robots.h"
#include <map>
#include <vector>
#include <algorithm>
#include <array>
const int INF=2e9+7;
std::array<int,3> objects[1100005];
int objects_cnt=0;
int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
int low=0,high=T+1;
while(high-low>1){
int mid=(low+high)/2;
objects_cnt=0;
for(int i=0;i<A;i++){
objects[objects_cnt++]={X[i]-1,INF,mid};
}
for(int i=0;i<B;i++){
objects[objects_cnt++]={INF,Y[i]-1,mid};
}
for(int i=0;i<T;i++){
objects[objects_cnt++]={W[i],S[i],-1};
}
std::sort(objects,objects+A+B+T);
std::reverse(objects,objects+A+B+T);
std::map<int,int> active;
bool bad=false;
for(int i=0;i<A+B+T;i++){
auto obj=objects[i];
if(obj[2]>0){
active[obj[1]]+=obj[2];
}else{
auto it=active.lower_bound(obj[1]);
if(it==active.end()){
bad=true;
break;
}else{
//printf("(%d,%d) matches with (?,%d)\n",obj[0],obj[1],it->first);
if(--it->second==0){
active.erase(it);
}
}
}
}
if(bad){
low=mid;
}else{
high=mid;
}
}
return (high<=T)?high:-1;
}
