This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
#define ll long long
#define ull unsigned ll
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
#define inf 1e9+1
#define linf 1e18+1
using namespace std;
const int NMAX=1e6+1;
vector<int>fen(NMAX);
int lsb(int x){
return x&-x;
}
int n;
void add(int pos,int val){
while(pos<=n){
fen[pos]+=val;
pos+=lsb(pos);
}
}
int sum(int pos){
int ss=0;
while(pos){
ss+=fen[pos];
pos-=lsb(pos);
}
return ss;
}
void solve(){
n=1e6;
int m;cin>>m;
int q;cin>>q;
int h[m+1];
for(int i=1;i<=m;i++){
cin>>h[i];
}
for(int i=2;i<=m;i++){
int r=max(h[i],h[i-1]);
int l=min(h[i],h[i-1]);
add(l,1);
if(r!=1e6)add(r+1,-1);
}
while(q--){
int ind;cin>>ind;
if(ind==2){
int pos;cin>>pos;
cout<<sum(pos)<<"\n";
}
else{
int pos,val;cin>>pos>>val;
if(pos>1){
int r=max(h[pos],h[pos-1]);
int l=min(h[pos],h[pos-1]);
add(l,-1);
if(r!=1e6)add(r+1,1);
}
if(pos<m){
int r=max(h[pos],h[pos+1]);
int l=min(h[pos],h[pos+1]);
add(l,-1);
if(r!=1e6)add(r+1,1);
}
h[pos]=val;
if(pos>1){
int r=max(h[pos],h[pos-1]);
int l=min(h[pos],h[pos-1]);
add(l,1);
if(r!=1e6)add(r+1,-1);
}
if(pos<m){
int r=max(h[pos],h[pos+1]);
int l=min(h[pos],h[pos+1]);
add(l,1);
if(r!=1e6)add(r+1,-1);
}
}
}
}
int main(){
ios_base::sync_with_stdio(false);cin.tie(0);
int test=1;//cin>>test;
while(test--)solve();
}
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