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 <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <set>
#include <stack>
#include <vector>
#include <queue>
#include <map>
#include <cstring>
#include <array>
#include <bitset>
using namespace std;
const int maxn=1e5+5, maxh=1e6+5;
struct logaritamska{
int l[maxh];
void update(int x, int val){
for(; x<maxh; x+=(x & -x)){
l[x]+=val;
}
}
int query(int x){
int sol=0;
for(; x>0; x-=(x & -x)){
sol+=l[x];
}
return sol;
}
};
int h[maxn];
logaritamska L;
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int n, m;
cin >> n >> m;
for(int i=0; i<n; i++){
cin >> h[i];
if(i){
L.update(min(h[i], h[i-1]), 1);
L.update(max(h[i], h[i-1]), -1);
}
}
int a, b, c;
for(int i=0; i<m; i++){
cin >> a;
if(a==1){
cin >> b >> c;
b--;
if(b){
L.update(min(h[b], h[b-1]), -1);
L.update(max(h[b], h[b-1]), 1);
L.update(min(c, h[b-1]), 1);
L.update(max(c, h[b-1]), -1);
}
if(b<n-1){
L.update(min(h[b], h[b+1]), -1);
L.update(max(h[b], h[b+1]), 1);
L.update(min(c, h[b+1]), 1);
L.update(max(c, h[b+1]), -1);
}
h[b]=c;
}
else{
cin >> b;
cout << L.query(b) << '\n';
}
}
return 0;
}
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