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day23.cpp
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day23.cpp
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#include <fstream>
#include <iostream>
#include <deque>
#include <bitset>
using namespace std;
ifstream fin("aoc.in");
ofstream fout("aoc.out");
long long n,v[60][2000000],i[60],j,p1,p2,p3,base,stop[60],send[60],cnt[60],lasty,idle;
deque<long long> pack[260];
long long q,x,y;
void intcode(long long calc, long long v[], long long &i){
if(stop[calc])
return;
while(i<=n){
if(v[i]%100==99)
break;
if(v[i]%100==1){
if(v[i]/100%10==1) p1=v[i+1];
else if(v[i]/100%10==2) p1=v[v[i+1]+base];
else p1=v[v[i+1]];
if(v[i]/1000%10==1) p2=v[i+2];
else if(v[i]/1000%10==2) p2=v[v[i+2]+base];
else p2=v[v[i+2]];
if(v[i]/10000%10==2) v[v[i+3]+base]=p1+p2;
else v[v[i+3]]=p1+p2;
i+=4;
continue;
}
if(v[i]%100==2){
if(v[i]/100%10==1) p1=v[i+1];
else if(v[i]/100%10==2) p1=v[v[i+1]+base];
else p1=v[v[i+1]];
if(v[i]/1000%10==1) p2=v[i+2];
else if(v[i]/1000%10==2) p2=v[v[i+2]+base];
else p2=v[v[i+2]];
if(v[i]/10000%10==2) v[v[i+3]+base]=p1*p2;
else v[v[i+3]]=p1*p2;
i+=4;
continue;
}
if(v[i]%100==3){
if(pack[calc].empty()){
p1=-1;
}else{
p1=pack[calc].front();
pack[calc].pop_front();
}
if(v[i]/100%10==2) v[v[i+1]+base]=p1;
else v[v[i+1]]=p1;
i+=2;
if(p1==-1){
return;
}else{
continue;
}
}
if(v[i]%100==4){
if(v[i]/100%10==1) p1=v[i+1];
else if(v[i]/100%10==2) p1=v[v[i+1]+base];
else p1=v[v[i+1]];
if(cnt[calc]==0){
send[calc]=p1;
}else{
if(send[calc]==255)
q++;
if(send[calc]<50 | send[calc]==255)
pack[send[calc]].push_back(p1);
}
cnt[calc]=(cnt[calc]+1)%3;
i+=2;
continue;
}
if(v[i]%100==5){
if(v[i]/100%10==1) p1=v[i+1];
else if(v[i]/100%10==2) p1=v[v[i+1]+base];
else p1=v[v[i+1]];
if(v[i]/1000%10==1) p2=v[i+2];
else if(v[i]/1000%10==2) p2=v[v[i+2]+base];
else p2=v[v[i+2]];
if(p1)
i=p2;
else
i+=3;
continue;
}
if(v[i]%100==6){
if(v[i]/100%10==1) p1=v[i+1];
else if(v[i]/100%10==2) p1=v[v[i+1]+base];
else p1=v[v[i+1]];
if(v[i]/1000%10==1) p2=v[i+2];
else if(v[i]/1000%10==2) p2=v[v[i+2]+base];
else p2=v[v[i+2]];
if(!p1)
i=p2;
else
i+=3;
continue;
}
if(v[i]%100==7){
if(v[i]/100%10==1) p1=v[i+1];
else if(v[i]/100%10==2) p1=v[v[i+1]+base];
else p1=v[v[i+1]];
if(v[i]/1000%10==1) p2=v[i+2];
else if(v[i]/1000%10==2) p2=v[v[i+2]+base];
else p2=v[v[i+2]];
if(p1<p2)
if(v[i]/10000%10==2) v[v[i+3]+base]=1;
else v[v[i+3]]=1;
else
if(v[i]/10000%10==2) v[v[i+3]+base]=0;
else v[v[i+3]]=0;
i+=4;
continue;
}
if(v[i]%100==8){
if(v[i]/100%10==1) p1=v[i+1];
else if(v[i]/100%10==2) p1=v[v[i+1]+base];
else p1=v[v[i+1]];
if(v[i]/1000%10==1) p2=v[i+2];
else if(v[i]/1000%10==2) p2=v[v[i+2]+base];
else p2=v[v[i+2]];
if(p1==p2)
if(v[i]/10000%10==2) v[v[i+3]+base]=1;
else v[v[i+3]]=1;
else
if(v[i]/10000%10==2) v[v[i+3]+base]=0;
else v[v[i+3]]=0;
i+=4;
continue;
}
if(v[i]%100==9){
if(v[i]/100%10==1) p1=v[i+1];
else if(v[i]/100%10==2) p1=v[v[i+1]+base];
else p1=v[v[i+1]];
base+=p1;
i+=2;
continue;
}
}
stop[calc]=1;
}
int main(){
while(fin>>v[0][n]){
for(j=1;j<50;j++)
v[j][n]=v[0][n];
n++;
}
n--;
for(j=0;j<50;j++)
pack[j].push_back(j);
while(true){
for(j=0;j<50;j++)
intcode(j,v[j],i[j]);
if(q==2)
cout<<pack[255].back()<<" ",q++;
for(j=0;j<50;j++)
if(pack[j].size()!=0)
break;
if(j==50){
idle++;
if(idle==10){
y=pack[255].back();
pack[255].pop_back();
x=pack[255].back();
if(y==lasty){
cout<<y;
return 0;
}
lasty=y;
pack[0].push_back(x);
pack[0].push_back(y);
}
}else
idle=0;
}
return 0;
}