#include "bits/stdc++.h"
#include "game.h"
//#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;
const int N = 3e5 + 5;
const int BL = 600;
vector<int> v[N],g[N];
int n,m,k,out[N],in[N],bin[N],bout[N];
bool ok=0;
void upd_in(int a,int val){
if(in[a]<val || ok || bin[a]>bout[b]) return;
in[a]=min(in[a],val);
bin[a]=min(bin[a],val/BL);
if(in[a]<out[a] || bin[a]<bout[a]){
ok=1;
return;
}
if(in[a]==out[a] && a>=k){
ok=1;
return;
}
for(int x:g[a]) if(in[x]>val && bin[x]==bin[a]) upd_in(x,val);
}
void upd_out(int a,int val){
if(out[a]>val || ok || bin[a]>bout[b]) return;
out[a]=max(out[a],val);
bout[a]=max(bout[a],val/BL);
if(in[a]<out[a] || bin[a]<bout[a]){
ok=1;
return;
}
if(in[a]==out[a] && a>=k){
ok=1;
return;
}
for(int x:v[a]) if(out[x]<val && bout[x]==bout[a]) upd_out(x,val);
}
void upd_bin(int a,int val,int real){
if(bin[a]<=val || ok) return;
bin[a]=val;
in[a]=min(in[a],real);
if(bin[a]<bout[a] || in[a]<out[a]){
ok=1;
return;
}
if(bin[a]==bout[a]) upd_in(a,in[a]);
for(int x:g[a]) if(bin[x]>val) upd_bin(x,val,in[a]);
}
void upd_bout(int a,int val,int real){
if(bout[a]>=val || ok) return;
bout[a]=val;
out[a]=max(out[a],real);
if(bin[a]<bout[a] || in[a]<out[a]){
ok=1;
return;
}
if(bin[a]==bout[a]) upd_out(a,out[a]);
for(int x:v[a]) if(bout[x]<val) upd_bout(x,val,out[a]);
}
void init(int _n,int _k){
n=_n,k=_k;
for(int i=1;i<k;i++){
v[i-1].push_back(i);
g[i].push_back(i-1);
}
fill(bout,bout+N,-1);
fill(bin,bin+N,k);
fill(out,out+N,-1);
fill(in,in+N,k);
for(int i=0;i<k;i++) bin[i]=bout[i]=i/BL;
for(int i=0;i<k;i++) in[i]=out[i]=i;
}
int add_teleporter(int a, int b){
if(a==b && a<k) ok=1;
if(a<k && b<k && a>b) ok=1;
v[a].push_back(b);
g[b].push_back(a);
upd_bout(b,bout[a],out[a]);
upd_bin(a,bin[b],in[b]);
upd_in(a,in[b]);
upd_out(b,out[a]);
return ok;
}
/*void _(){
cin >> n >> m >> k;
for(int i=1;i<k;i++){
v[i-1].push_back(i);
g[i].push_back(i-1);
}
fill(bout,bout+N,-1);
fill(bin,bin+N,k);
fill(out,out+N,-1);
fill(in,in+N,k);
for(int i=0;i<k;i++) bin[i]=bout[i]=i/BL;
for(int i=0;i<k;i++) in[i]=out[i]=i;
for(int i=1;i<=m;i++){
int a,b;
cin >> a >> b;
if(a==b && a<k) ok=1;
if(a<k && b<k && a>b) ok=1;
v[a].push_back(b);
g[b].push_back(a);
upd_bout(b,bout[a],out[a]);
upd_bin(a,bin[b],in[b]);
upd_bout(bout[a],bout[a],out[bout[a]]);
upd_bin(bin[b],bin[b],in[bin[b]]);
upd_in(a,in[b]);
upd_out(b,out[a]);
cout << ok << '\n';
}
}
int32_t main(){
cin.tie(0); ios::sync_with_stdio(0);
int tc=1;//cin >> tc;
while(tc--) _();
return 0;
}*/
Compilation message
game.cpp: In function 'void upd_in(int, int)':
game.cpp:15:37: error: 'b' was not declared in this scope
15 | if(in[a]<val || ok || bin[a]>bout[b]) return;
| ^
game.cpp: In function 'void upd_out(int, int)':
game.cpp:30:38: error: 'b' was not declared in this scope
30 | if(out[a]>val || ok || bin[a]>bout[b]) return;
| ^
