#include <bits/stdc++.h>
#define respagold ios_base::sync_with_stdio(0), cin.tie(0);
//#define int long long
#define ll long long
#define int2 __int128_t
#define FOR( i, x, n, d ) for( int i = x; i <= n; i += d )
#define FORR( i, x, n, d ) for( int i = x; i >= n; i -= d )
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x.size())
#define pb push_back
#define ins insert
#define lb lower_bound
#define ub upper_bound
#define pii pair <int, int>
#define mkp make_pair
using namespace std;
const int N = 2e5 + 123;
const int inf = 1e9;
const int mod = 1e9 + 7;
const double eps = 1e-13;
int a[N], b[N], v[N], u[N], n, m, k, z, x, y, w, ans, tp;
set <int> st[N];
vector <int> v1, v2;
map <pii, int> mp;
vector <int> ord;
mt19937 rng( chrono::steady_clock::now().time_since_epoch().count());
int rand( int l, int r )
{
uniform_int_distribution <int> uid( l, r );
return uid( rng );
}
bool cmp( int i, int j )
{
if( a[i] < a[j] || (a[i] == a[j] && i < j) ) return 1;
return 0;
}
void update( int v, int u, int time )
{
if( st[v].count(u) ) st[v].erase(u), st[u].erase(v);
else st[v].ins(u), st[u].ins(v);
}
int question( int X, int Y, int V )
{
// return 0;
X = b[X], Y = b[Y];
v1.clear(), v2.clear();
cout << "G\n";
for( auto i : st[X] ) v1.pb(i);
for( auto i : st[Y] ) v2.pb(i);
x = 0, y = 0;
int res = 1e9;
while( x < sz(v1) && y < sz(v2) )
{
res = min( res, abs( a[v2[y]] - a[v1[x]] ));
if( a[x] > a[y] && y < sz(v2) ) y ++;
else x ++;
}
return res;
}
void curseChanges( int U, int A[], int B[] )
{
// return;
if( tp == 1 )
{
// cin >> m;
// FOR( i, 0, m - 1, 1 ) cin >> v[i] >> u[i];
}
else
{
m = U;
FOR( i, 0, m - 1, 1 ) v[i] = A[i], u[i] = B[i];
}
FOR( i, 0, m - 1, 1 ) update( b[v[i]], b[u[i]], i );
}
void init( int NN, int D, int H[] )
{
respagold;
tp = 2;
// int H[n + 1];
if( tp == 1 )
{
cin >> n >> w;
FOR( i, 0, n - 1, 1 ) ord.pb(i), cin >> a[i], H[i] = a[i];
}
else
{
// n = NN, w = D;
// FOR( i, 0, n - 1, 1 ) a[i] = H[i], ord.pb(i);
}
sort( all(ord), cmp );
FOR( i, 0, n - 1, 1 ) a[i] = H[ord[i]], b[ord[i]] = i;
}
