#include #pragma GCC optimize("Ofast") #define _GLIBCXX_DEBUG using namespace std; using std::cout; using std::cin; using std::endl; using ll=long long; using ld=long double; ll ILL=1167167167167167167; const int INF=2100000000; const ll mod=998244353; #define rep(i,a) for (ll i=0;i using _pq = priority_queue, greater>; template ll LB(vector &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();} template ll UB(vector &v,T a){return upper_bound(v.begin(),v.end(),a)-v.begin();} template bool chmin(T &a,const T &b){if(a>b){a=b;return 1;}else return 0;} template bool chmax(T &a,const T &b){if(a void So(vector &v) {sort(v.begin(),v.end());} template void Sore(vector &v) {sort(v.begin(),v.end(),[](T x,T y){return x>y;});} void yneos(bool a){if(a) cout<<"Yes\n"; else cout<<"No\n";} int M=2e5+10; namespace po167{ struct UFtree { std::vector wei; int component; int l,r; UFtree(int n):par(n),wei(n),component(n){ for(int i=0;i par; }; } using po167::UFtree; // rainy ~ 雨に打たれて ~ int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int N; cin>>N; UFtree T(M); int ans=N; rep(i,N){ int a; cin>>a; int b=T.root(a)-T.l; if(b==0){ ans--; continue; } if(T.l+2*b>T.r){ int tmp=T.r-T.l-b; T.r=T.l+b; rep(k,tmp){ T.unite(T.l+k,T.l+k+b); } }else{ T.l+=b; rep(k,b){ T.unite(T.l+k,T.l+k-b); } } } cout<