結果

問題 No.1496 不思議な数え上げ
ユーザー tokusakuraitokusakurai
提出日時 2021-04-30 23:30:58
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 160 ms / 3,000 ms
コード長 4,454 bytes
コンパイル時間 2,497 ms
コンパイル使用メモリ 206,872 KB
実行使用メモリ 9,812 KB
最終ジャッジ日時 2023-09-26 08:38:43
合計ジャッジ時間 11,606 ms
ジャッジサーバーID
(参考情報)
judge14 / judge12
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 1 ms
4,380 KB
testcase_01 AC 2 ms
4,376 KB
testcase_02 AC 1 ms
4,376 KB
testcase_03 AC 149 ms
9,792 KB
testcase_04 AC 151 ms
9,716 KB
testcase_05 AC 150 ms
9,580 KB
testcase_06 AC 133 ms
9,592 KB
testcase_07 AC 132 ms
9,608 KB
testcase_08 AC 132 ms
9,812 KB
testcase_09 AC 130 ms
9,632 KB
testcase_10 AC 130 ms
9,644 KB
testcase_11 AC 130 ms
9,632 KB
testcase_12 AC 149 ms
9,600 KB
testcase_13 AC 149 ms
9,644 KB
testcase_14 AC 147 ms
9,596 KB
testcase_15 AC 136 ms
9,636 KB
testcase_16 AC 139 ms
9,812 KB
testcase_17 AC 153 ms
9,640 KB
testcase_18 AC 153 ms
9,608 KB
testcase_19 AC 152 ms
9,588 KB
testcase_20 AC 151 ms
9,768 KB
testcase_21 AC 151 ms
9,692 KB
testcase_22 AC 153 ms
9,588 KB
testcase_23 AC 155 ms
9,580 KB
testcase_24 AC 155 ms
9,812 KB
testcase_25 AC 152 ms
9,656 KB
testcase_26 AC 160 ms
9,640 KB
testcase_27 AC 150 ms
9,616 KB
testcase_28 AC 147 ms
9,768 KB
testcase_29 AC 150 ms
9,604 KB
testcase_30 AC 150 ms
9,600 KB
testcase_31 AC 148 ms
9,640 KB
testcase_32 AC 133 ms
9,288 KB
testcase_33 AC 68 ms
6,284 KB
testcase_34 AC 65 ms
6,312 KB
testcase_35 AC 3 ms
4,376 KB
testcase_36 AC 137 ms
9,276 KB
testcase_37 AC 73 ms
6,612 KB
testcase_38 AC 68 ms
6,228 KB
testcase_39 AC 98 ms
8,020 KB
testcase_40 AC 53 ms
5,932 KB
testcase_41 AC 103 ms
8,464 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < n; i++)
#define rep2(i, x, n) for(int i = x; i <= n; i++)
#define rep3(i, x, n) for(int i = x; i >= n; i--)
#define each(e, v) for(auto &e: v)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
const int MOD = 1000000007;
//const int MOD = 998244353;
const int inf = (1<<30)-1;
const ll INF = (1LL<<60)-1;
template<typename T> bool chmax(T &x, const T &y) {return (x < y)? (x = y, true) : false;};
template<typename T> bool chmin(T &x, const T &y) {return (x > y)? (x = y, true) : false;};

struct io_setup{
    io_setup(){
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cout << fixed << setprecision(15);
    }
} io_setup;

template<typename Monoid>
struct Segment_Tree{
    using F = function<Monoid(Monoid, Monoid)>;
    int n;
    vector<Monoid> seg;
    const F f;
    const Monoid e1;
    
    Segment_Tree(const vector<Monoid> &v, const F &f, const Monoid &e1) : f(f), e1(e1){
        int m = v.size();
        n = 1;
        while(n < m) n <<= 1;
        seg.assign(2*n, e1);
        copy(begin(v), end(v), begin(seg)+n);
        for(int i = n-1; i > 0; i--) seg[i] = f(seg[2*i], seg[2*i+1]);
    }
    
    void change(int i, const Monoid &x){
        seg[i += n] = x;
        while(i >>= 1){
            seg[i] = f(seg[2*i], seg[2*i+1]);
        }
    }

    Monoid query(int l, int r) const{
        Monoid L = e1, R = e1;
        l += n, r += n;
        while(l < r){
            if(l&1) L = f(L, seg[l++]);
            if(r&1) R = f(seg[--r], R);
            l >>= 1, r >>= 1;
        }
        return f(L, R);
    }
 
    Monoid operator [] (int i) const {return seg[n+i];}
 
    template<typename C>
    int find_subtree(int i, const C &check, const Monoid &x, Monoid &M, bool type) const{
        while(i < n){
            Monoid nxt = type? f(seg[2*i+type], M) : f(M, seg[2*i+type]);
            if(check(nxt, x)) i = 2*i+type;
            else M = nxt, i = 2*i+(type^1);
        }
        return i-n;
    }
 
    template<typename C>
    int find_first(int l, const C &check, const Monoid &x) const{
        Monoid L = e1;
        int a = l+n, b = n+n;
        while(a < b){
            if(a&1){
                Monoid nxt = f(L, seg[a]);
                if(check(nxt, x)) return find_subtree(a, check, x, L, false);
                L = nxt, a++;
            }
            a >>= 1, b >>= 1;
        }
        return n;
    }
 
    template<typename C>
    int find_last(int r, const C &check, const Monoid &x) const{
        Monoid R = e1;
        int a = n, b = r+n;
        while(a < b){
            if(b&1 || a == 1){
                Monoid nxt = f(seg[--b], R);
                if(check(nxt, x)) return find_subtree(b, check, x, R, true);
                R = nxt;
            }
            a >>= 1, b >>= 1;
        }
        return -1;
    }
};

int main(){
    int N; cin >> N;

    vector<int> p(N), id(N);
    rep(i, N) {cin >> p[i]; id[--p[i]] = i;}
    vector<ll> A(N);
    rep(i, N) cin >> A[i];

    auto f = [](int a, int b) {return max(a, b);};
    auto c = [](int a, int b) {return a >= b;};

    Segment_Tree<int> seg(vector<int>(N, 0), f, 0);
    vector<ll> s(N+1, 0);
    rep(i, N) s[i+1] = s[i]+p[i]+1;

    rep(i, N){
        int m = id[i];
        int l = seg.find_last(m, c, 1)+1;
        int r = min(N-1, seg.find_first(m, c, 1)-1);

        ll ans = 0;
        //cout << l << ' ' << m << ' ' << r << '\n';

        if(r-m < m-l){
            rep2(j, m, r){
                ll S = s[j+1]-s[m+1];
                int L = l-1, R = m+1; //(L,R]

                while(R-L > 1){
                    int M = (L+R)/2;
                    if(S+s[m+1]-s[M] > A[i]) L = M;
                    else R = M;
                }

                ans += m-R+1;
            }
        }
        else{
            rep3(j, m, l){
                ll S = s[m]-s[j];
                int L = m-1, R = r+1; //[L,R)

                while(R-L > 1){
                    int M = (L+R)/2;
                    if(S+s[M+1]-s[m] > A[i]) R = M;
                    else L = M;
                }

                ans += L-m+1;
            }
        }

        seg.change(m, 1);

        cout << ans << '\n';
    }
}
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