#include <bits/stdc++.h>
#include <atcoder/segtree>
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
#define rep(i,n) for(int i=0;i<n;i++)
#define crep(i,x,n) for(int i=x;i<n;i++)
#define drep(i,n) for(int i=n-1;i>=0;i--)
#define vec(...) vector<__VA_ARGS__>
#define _3cSpNGp ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
using pii=pair<int,int>;
using vi=vector<int>;
int op(int l,int r){
return min(l,r);
}
int e(){
return 1e9+1;
}
int main(){
_3cSpNGp;
int n;
cin>>n;
vi a(n);
rep(i,n){
cin>>a[i];
}
atcoder::segtree<int,op,e> seg(a);
std::map<int,int> mp;
int ans=0;
rep(i,n){
if(mp.find(a[i])==mp.end()) ans++,mp[a[i]]=i;
else{
int l=mp[a[i]];
int val=seg.prod(l,i);
if(val<a[i]) ans++;
}
}
cout<<ans<<"\n";
//
return 0;
}
Compilation message
Main.cpp:2:10: fatal error: atcoder/segtree: No such file or directory
2 | #include <atcoder/segtree>
| ^~~~~~~~~~~~~~~~~
compilation terminated.
