結果
問題 | No.1496 不思議な数え上げ |
ユーザー |
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提出日時 | 2022-02-14 19:35:11 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 327 ms / 3,000 ms |
コード長 | 4,597 bytes |
コンパイル時間 | 2,336 ms |
コンパイル使用メモリ | 201,436 KB |
最終ジャッジ日時 | 2025-01-27 23:07:37 |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 39 |
ソースコード
#include <bits/stdc++.h>#pragma GCC optimize("Ofast")#define _GLIBCXX_DEBUGusing 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=1e9+7;#define rep(i,a) for (int i=0;i<a;i++)template<class T> using _pq = priority_queue<T, vector<T>, greater<T>>;template<class T> ll LB(vector<T> &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();}template<class T> ll UB(vector<T> &v,T a){return upper_bound(v.begin(),v.end(),a)-v.begin();}template<class T> bool chmin(T &a,const T &b){if(a>b){a=b;return 1;}else return 0;}template<class T> bool chmax(T &a,const T &b){if(a<b){a=b;return 1;}else return 0;}template<class T> void So(vector<T> &v) {sort(v.begin(),v.end());}template<class T> void Sore(vector<T> &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";}namespace po167{template <class T,T (*op)(T,T),T(*e)()>struct segment_tree{int _n,size;std::vector<T> seg;int ceil_pow2(int a){int b=1;while(a>b){b<<=1;}return b;}void update(int k){seg[k]=op(seg[k*2],seg[k*2+1]);};segment_tree(int n) :_n(n){size=ceil_pow2(n);seg=std::vector<T>(size*2,e());}segment_tree(std::vector<T> &p) :_n((int) p.size()){size=ceil_pow2(_n);seg=std::vector<T>(size*2,e());for(int i=0;i<_n;i++) seg[i+size]=p[i];for(int i=size-1;i>0;i--) update(i);}void set(int ind,T val){assert(0<=ind&&ind<_n);ind+=size;seg[ind]=val;while(ind!=1){ind>>=1;update(ind);}}void addl(int ind,T val){set(ind,op(get(ind),val));}void addr(int ind,T val){set(ind,op(val,get(ind)));}T get(int ind){assert(0<=ind&&ind<_n);return seg[ind+size];}T query(int l,int r){assert(0<=l&&l<=r&&r<=_n);T l_val=e();T r_val=e();l+=size,r+=size;while(l<r){if(l&1) l_val=op(l_val,seg[l]),l+=1;if(r&1) r-=1,r_val=op(seg[r],r_val);r>>=1;l>>=1;}return op(l_val,r_val);}template <bool (*f)(T)> int max_right(int l) {return max_right(l, [](T x) { return f(x); });}template <class F> int max_right(int l, F f) {assert(0<=l&&l<=_n);assert(f(e()));if(f(query(l,_n))) return _n;T val=e();l+=size;while(true){while(l%2==0) l>>=1;if(!f(op(val,seg[l]))){while(l<size){l*=2;if(f(op(val,seg[l]))){val=op(val,seg[l]);l++;}}return l-size;}val=op(val,seg[l]);l++;}}template <bool (*f)(T)> int min_left(int r) {return min_left(r, [](T x) { return f(x); });}template <class F> int min_left(int r, F f) {assert(0 <= r && r <= _n);assert(f(e()));if (r == 0) return 0;r += size;T sm = e();do {r--;while (r > 1 && (r % 2)) r >>= 1;if (!f(op(seg[r], sm))) {while (r < size) {r = (2 * r + 1);if (f(op(seg[r], sm))) {sm = op(seg[r], sm);r--;}}return r + 1 - size;}sm = op(seg[r], sm);} while ((r & -r) != r);return 0;}};}using po167::segment_tree;using F= ll;F op(F a,F b){return a+b;}F e(){return 0;}F target;bool f(F x){return x<=target;}void solve();// rainy ~ 雨に打たれて ~int main() {ios::sync_with_stdio(false);cin.tie(nullptr);int t=1;//cin>>t;rep(i,t) solve();}void solve(){int N;cin>>N;vector<ll> p(N),A(N),rev(N);rep(i,N){cin>>p[i];rev[p[i]-1]=i;}rep(i,N) cin>>A[i];segment_tree<F,op,e> seg(p);segment_tree<F,op,e> side(N);rep(i,N){target=0;ll r=side.max_right<f>(rev[i]);ll l=side.min_left<f>(rev[i]);ll val=0,ans=0;//cout<<l<<" "<<r<<"\n";if((r+l)/2<rev[i]){for(int k=rev[i];k<r;k++){val+=p[k];if(val>A[i]) break;target=A[i]-val;ll a=seg.min_left<f>(rev[i]);ans+=rev[i]-max(a,l)+1;}}else{for(int k=rev[i];k>=l;k--){val+=p[k];if(val>A[i]) break;target=A[i]-val;ll a=seg.max_right<f>(rev[i]+1);ans+=min(a,r)-rev[i];}}cout<<ans<<"\n";side.set(rev[i],1);}}