結果

問題 No.1332 Range Nearest Query
ユーザー 🍮かんプリン🍮かんプリン
提出日時 2021-01-08 23:00:16
言語 C++11
(gcc 11.4.0)
結果
WA  
実行時間 -
コード長 4,136 bytes
コンパイル時間 1,889 ms
コンパイル使用メモリ 184,260 KB
実行使用メモリ 26,300 KB
最終ジャッジ日時 2024-04-28 04:42:51
合計ジャッジ時間 23,619 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge2
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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 2 ms
5,248 KB
testcase_01 AC 2 ms
5,376 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 WA -
testcase_04 WA -
testcase_05 WA -
testcase_06 WA -
testcase_07 WA -
testcase_08 WA -
testcase_09 WA -
testcase_10 WA -
testcase_11 WA -
testcase_12 WA -
testcase_13 WA -
testcase_14 WA -
testcase_15 WA -
testcase_16 WA -
testcase_17 WA -
testcase_18 WA -
testcase_19 WA -
testcase_20 WA -
testcase_21 WA -
testcase_22 WA -
testcase_23 WA -
testcase_24 WA -
testcase_25 WA -
testcase_26 AC 415 ms
26,092 KB
testcase_27 WA -
testcase_28 WA -
testcase_29 WA -
testcase_30 WA -
testcase_31 WA -
testcase_32 WA -
testcase_33 WA -
testcase_34 WA -
testcase_35 WA -
testcase_36 WA -
testcase_37 WA -
testcase_38 WA -
testcase_39 WA -
testcase_40 WA -
testcase_41 WA -
testcase_42 WA -
testcase_43 WA -
testcase_44 WA -
testcase_45 WA -
testcase_46 WA -
testcase_47 WA -
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ソースコード

diff # 

/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2021.01.08 23:00:11
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;


template < class Monoid >
struct SegmentTree {
private:
    using Func = std::function< Monoid(Monoid, Monoid) >;
    Func F;
    Monoid UNITY;
    int n;
    std::vector< Monoid > node;
    int _binary_search(int a, int b, const std::function<bool(Monoid)> &f, Monoid &s, int k = 0, int l = 0, int r = -1) {
        if (r < 0) r = n;
        if (r <= a || b <= l) return n;
        if (a <= l && r <= b && !f(F(s,node[k]))) {
            s = F(s,node[k]);
            return n;
        }
        if (l == r - 1) {s = F(s,node[k]); return l;}
        int ret = _binary_search(a, b, f, s, 2 * k + 1, l, (r - l) / 2 + l);
        return ret != n ? ret : _binary_search(a, b, f, s, 2 * k + 2, (r - l) / 2 + l, r);
    }
public:
    SegmentTree() {}
    SegmentTree(const std::vector< Monoid > &v, const Func f, const Monoid &unity) {
        F = f;
        UNITY = unity;
        int sz = v.size();
        n = 1;
        while (n < sz) n <<= 1;
        node.resize(n * 2 - 1, UNITY);
        for (int i = 0; i < sz; i++) node[i + n - 1] = v[i];
        build();
    }
    
    SegmentTree(int m, const Monoid &val, const Func f, const Monoid &unity) {
        F = f;
        UNITY = unity;
        n = 1;
        while (n < m) n <<= 1;
        node.resize(n * 2 - 1, UNITY);
        if (val != UNITY) {
            for (int i = 0; i < m; i++) node[i + n - 1] = val;
            build();
        }
    }
    
    void set(int k, const Monoid &x) {
        node[n + k - 1] = x;
    }
    void build() {
        for (int i = n - 2; i >= 0; i--) node[i] = F(node[2 * i + 1], node[2 * i + 2]);
    }
    void update_query(int x, const Monoid &val) {
        if (x >= n || x < 0) return;
        x += n - 1;
        node[x] = val;
        while (x > 0) {
            x = (x - 1) >> 1;
            node[x] = F(node[2 * x + 1], node[2 * x + 2]);
        }
    }
    
    Monoid get_query(int l, int r) {
        Monoid L = UNITY, R = UNITY;
        if (l < 0) l = 0;
        if (r < 0) return UNITY;
        if (l >= n) return UNITY;
        if (r >= n) r = n;
        for (l += n, r += n; l < r; l >>= 1, r >>= 1) {
            if (l & 1) L = F(L, node[l++ - 1]);
            if (r & 1) R = F(node[--r - 1], R);
        }
        return F(L, R);
    }
    
    
    int binary_search(int l, int r, const std::function<bool(Monoid)> &f) {
        Monoid s = UNITY;
        int ret = _binary_search(l,r,f,s);
        return ret != n ? ret : -1;
    }
    Monoid operator[](int x) const {
        return node[n + x - 1];
    }
    int size() {
        return n;
    }
    void print() {
        for (int i = 0; i < n; i++) {
            std::cout << i << "\t: " << node[n + i - 1] << std::endl;
        }
    }
};
int main() {
    int n;cin >> n;
    vector<ll> a(n);
    vector<pair<int,int>> b(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        b[i].first = a[i];
        b[i].second = i;
    }
    sort(b.begin(), b.end());
    int q;cin >> q;
    vector<tuple<int,int,int,int>> query(q);
    for (int i = 0; i < q; i++) {
        int l,r,x;cin >> l >> r >> x;
        l--;r--;
        query[i] = make_tuple(x,l,r,i);
    }
    sort(query.begin(), query.end());
    vector<int> ans(q);
    int t = 0;
    constexpr long long LLINF = 1e18 + 1;
    SegmentTree<ll> seg1(n,0,[](ll a,ll b){return max(a,b);},-LLINF);
    SegmentTree<ll> seg2(a,[](ll a,ll b){return min(a,b);},LLINF);
    for (int i = 0; i < q; i++) {
        int x = get<0>(query[i]);
        int l = get<1>(query[i]);
        int r = get<2>(query[i]);
        while(t < n && x >= b[t].first) {
            seg2.update_query(b[t].second,LLINF);
            seg1.update_query(b[t].second,b[t].first);
            t++;
        }
        
        
        
        
        
        
        ll ans1 = x-seg1.get_query(l,r+1);
        ll ans2 = seg2.get_query(l,r+1)-x;
        ans[get<3>(query[i])] = min(ans1,ans2);
    }
    for (int i = 0; i < q; i++) {
        cout << ans[i] << endl;
    }
    return 0;
}
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