#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
ios::sync_with_stdio(false); cin.tie(nullptr);
int n, q;
cin >> n >> q;
vector<int> a(n);
for (auto &i : a)
cin >> i;
while (q--) {
int tp, x;
cin >> tp >> x;
if (tp == 1) {
int vl;
cin >> vl;
a[--x] = vl;
}
else {
int cnt = 0;
vector<bool> vis(n);
for (int i = 0; i + 1 < n; i++) {
int mn = min(a[i], a[i + 1]), mx = max(a[i], a[i + 1]);
if (mn <= x && x <= mx) {
cnt++;
if (mx == a[i] && mx == x && vis[i]) cnt--;
if (mx == a[i + 1] && mx == x) vis[i + 1] = true;
}
}
cout << cnt << '\n';
}
}
}
