#include "game.h"
#include <bits/stdc++.h>
using namespace std;
#define oo 1000000010
vector< vector< int > > g , g2;
vector< int > mn , mx , last , last2;
int n , k;
void init(int n, int k) {
::n = n;
::k = k;
g.resize(n);
g2.resize(n);
mn.resize(n);
mx.resize(n);
for(int i = 0 ;i < k;i++){
mn[i] = mx[i] = i;
}
for(int i = k ;i < n;i++){
mn[i] = oo;
mx[i] = -oo;
}
}
void CheckMax(int u){
if(mx[u] == -oo) return;
for(int i = 0 ;i < (int)g[u].size();i++){
if(mx[g[u][i]] < mx[u]){
mx[g[u][i]] = mx[u];
CheckMax(g[u][i]);
}
}
}
void CheckMin(int u){
if(mn[u] == oo) return;
for(int i = 0 ;i < (int)g2[u].size();i++){
if(mn[g2[u][i]] > mn[u]){
mn[g2[u][i]] = mn[u];
CheckMin(g2[u][i]);
}
}
}
int add_teleporter(int u, int v) {
if(u < k && v < k){
if(u >= v)
return 1;
return 0;
}
//mx[v]
g[u].push_back(v);
if(mx[v] < mx[u])
CheckMax(u);
g2[v].push_back(u);
if(mn[u] > mn[v])
CheckMin(v);
if(u < k) u = v;
if(mn[u] <= mx[u] && (mx[u] != k)){
return 1;
}
return 0;
}
