#include <bits/stdc++.h>
#define yes cout<<"YES\n"
#define no cout<<"NO\n"
#define int long long
#define ff first
#define ss second
#define pb push_back
#define y1 zildjian
#define left radio
#define right head
using namespace std;
const int N = 1e6+1;
const int INF = 1e18;
const int mod = 1e9+7;
const int mod1 = 998244353;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
int t[N*4];
int lazy[N*4];
void push(int v, int tl, int tr){
if(lazy[v]){
t[v] += (tr-tl+1)*lazy[v];
if(tl!=tr){
lazy[v*2] += lazy[v];
lazy[v*2+1] += lazy[v];
}
lazy[v] = 0;
}
}
void upd(int v, int tl, int tr, int l, int r, int x){
push(v,tl,tr);
if(tl>r || tr<l) return;
if(tl>=l && tr<=r){
lazy[v]+=x;
push(v,tl,tr);
return;
}
int m = (tl+tr)/2;
upd(v*2,tl,m,l,r,x);
upd(v*2+1,m+1,tr,l,r,x);
t[v] = t[v*2]+t[v*2+1];
}
int get(int v, int tl, int tr, int x){
push(v,tl,tr);
if(tl == tr){
return t[v];
}
int m = (tl+tr)/2;
if(x<=m) return get(v*2,tl,m,x);
else return get(v*2+1,m+1,tr,x);
}
int n,m;
int h[N];
void solve(){
cin>>n>>m;
for(int i = 1;i<=n;i++){
cin>>h[i];
}
for(int i = 1;i<n;i++){
upd(1,1,N-1,min(h[i],h[i+1]),max(h[i],h[i+1]),1);
}
while(m--){
int t;
cin>>t;
if(t == 1){
int pos,val;
cin>>pos>>val;
if(n == 1) continue;
if(pos != n){
upd(1,1,N-1,min(h[pos],h[pos+1]),max(h[pos],h[pos+1]),-1);
}
if(pos != 1){
upd(1,1,N-1,min(h[pos],h[pos-1]),max(h[pos],h[pos-1]),-1);
}
h[pos] = val;
if(pos != n){
upd(1,1,N-1,min(h[pos],h[pos+1]),max(h[pos],h[pos+1]),1);
}
if(pos != 1){
upd(1,1,N-1,min(h[pos],h[pos-1]),max(h[pos],h[pos-1]),1);
}
}
else{
int x;
cin>>x;
cout<<get(1,1,N-1,x)<<'\n';
}
}
}
signed main(){
// freopen("bootfall.in","r",stdin);
// freopen("bootfall.out","w",stdout);
ios_base::sync_with_stdio(0);
cin.tie(nullptr);
// cout.tie(nullptr);
int t = 1;
// cin>>t;
for(int i = 1;i<=t;i++){
// cout<<"Case "<<i<<": ";
solve();
}
}
