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>
using namespace std;
typedef long long ll;
typedef vector<int> vii;
typedef pair<ll,ll> pii;
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pb push_back
const ll M=1e5+10;
const ll inf=1e18;
ll n,a[M],q,ml[M],mr[M],pre[M],ans[M];
map<int,set<int>>s;
int main(){
ios_base::sync_with_stdio(0),cin.tie(0);
cin>>n;
for(int i=0;i<n;i++)
cin>>a[i],s[a[i]].insert(i);
ll q;
cin>>q;
while(q--){
ll type;
cin>>type;
if(type==1){
ll x,y;
cin>>x>>y;
x--;
s[a[x]].erase(x);
a[x]=y;
s[a[x]].insert(x);
continue;
}
ll l,r;
cin>>l>>r;
l--,r--;
vector<int>v;
for(int i=l;i<=r;i++){
ml[i]=mr[i]=inf;
}
for(int i=l;i<=r;i++){
while(v.size()>0&&a[i]>=a[v.back()])
v.pop_back();
if(v.size()>0)
ml[i]=v.back();
v.pb(i);
}
v.clear();
for(int i=r;i>=l;i--){
while(v.size()>0&&a[i]>=a[v.back()])
v.pop_back();
if(v.size()>0)
mr[i]=v.back();
v.pb(i);
}
pre[l]=0;
for(int i=l;i<=r;i++)
pre[i+1]=a[i]+pre[i],ans[i]=0;
ll res=0;
for(auto it=s.rbegin();it!=s.rend();it++){
for(auto itt:it->S){
if(itt>=l&&itt<=r){
if(ml[itt]==mr[itt]&&ml[itt]==inf){
ans[itt]=1,res++;
continue;
}
if(ml[itt]==inf)
ml[itt]=l-1;
if(mr[itt]==inf)
mr[itt]=r+1;
if(ml[itt]>=l&&ans[ml[itt]])
ans[itt]|=((pre[mr[itt]]-pre[ml[itt]+1])>=a[ml[itt]]);
if(mr[itt]<=r&&ans[mr[itt]]){
ans[itt]|=((pre[mr[itt]]-pre[ml[itt]+1])>=a[mr[itt]]);
}
res+=ans[itt];
}
}
}
cout<<res<<'\n';
}
}
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