#376922 (C++14) No.875 Range Mindex Query

提出ソース

結果

問題	No.875 Range Mindex Query
ユーザー	hitonanode
提出日時	2019-09-07 00:16:43
言語	C++14 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	212 ms / 2,000 ms
コード長	5,927 bytes
コンパイル時間	1,749 ms
コンパイル使用メモリ	177,152 KB
実行使用メモリ	6,948 KB
最終ジャッジ日時	2024-06-24 22:40:10
合計ジャッジ時間	4,021 ms
ジャッジサーバーID （参考情報）	judge3 / judge2

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	2 ms 6,816 KB
testcase_01	AC	3 ms 6,940 KB
testcase_02	AC	3 ms 6,948 KB
testcase_03	AC	2 ms 6,944 KB
testcase_04	AC	2 ms 6,940 KB
testcase_05	AC	2 ms 6,940 KB
testcase_06	AC	3 ms 6,940 KB
testcase_07	AC	3 ms 6,940 KB
testcase_08	AC	2 ms 6,940 KB
testcase_09	AC	2 ms 6,940 KB
testcase_10	AC	3 ms 6,940 KB
testcase_11	AC	168 ms 6,940 KB
testcase_12	AC	133 ms 6,940 KB
testcase_13	AC	104 ms 6,940 KB
testcase_14	AC	109 ms 6,944 KB
testcase_15	AC	155 ms 6,940 KB
testcase_16	AC	188 ms 6,940 KB
testcase_17	AC	212 ms 6,940 KB
testcase_18	AC	204 ms 6,940 KB

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ソースコード

raw source code

#include <bits/stdc++.h>
using namespace std;
using lint = long long int;
using pint = pair<int, int>;
using plint = pair<lint, lint>;
struct fast_ios { fast_ios(){ cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_;
#define ALL(x) (x).begin(), (x).end()
#define SZ(x) ((lint)(x).size())
#define POW2(n) (1LL << (n))
#define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++)
#define IFOR(i, begin, end) for(int i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--)
#define REP(i, n) FOR(i,0,n)
#define IREP(i, n) IFOR(i,0,n)
template<typename T> void ndarray(vector<T> &vec, int len) { vec.resize(len); }
template<typename T, typename... Args> void ndarray(vector<T> &vec, int len, Args... args) { vec.resize(len); for (auto &v : vec) ndarray(v, args...); }
template<typename T> bool mmax(T &m, const T q) { if (m < q) {m = q; return true;} else return false; }
template<typename T> bool mmin(T &m, const T q) { if (m > q) {m = q; return true;} else return false; }
template<typename T1, typename T2> pair<T1, T2> operator+(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first + r.first, l.second + r.second); }
template<typename T1, typename T2> pair<T1, T2> operator-(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first - r.first, l.second - r.second); }
template<typename T> istream &operator>>(istream &is, vector<T> &vec){ for (auto &v : vec) is >> v; return is; }
///// This part below is only for debug, not used /////
template<typename T> ostream &operator<<(ostream &os, const vector<T> &vec){ os << "["; for (auto v : vec) os << v << ","; os << "]"; return os; }
template<typename T> ostream &operator<<(ostream &os, const deque<T> &vec){ os << "deq["; for (auto v : vec) os << v << ","; os << "]"; return os; }
template<typename T> ostream &operator<<(ostream &os, const set<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T> ostream &operator<<(ostream &os, const unordered_set<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T> ostream &operator<<(ostream &os, const multiset<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T> ostream &operator<<(ostream &os, const unordered_multiset<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa){ os << "(" << pa.first << "," << pa.second << ")"; return os; }
template<typename TK, typename TV> ostream &operator<<(ostream &os, const map<TK, TV> &mp){ os << "{"; for (auto v : mp) os << v.first << "=>" << v.second << ","; os << "}"; return os; }
template<typename TK, typename TV> ostream &operator<<(ostream &os, const unordered_map<TK, TV> &mp){ os << "{"; for (auto v : mp) os << v.first << "=>" << v.second << ","; os << "}"; return os; }
#define dbg(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ") " << __FILE__ << endl;
///// END /////
/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/tag_and_trait.hpp>
using namespace __gnu_pbds; // find_by_order(), order_of_key()
template<typename TK> using pbds_set = tree<TK, null_type, less<TK>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename TK, typename TV> using pbds_map = tree<TK, TV, less<TK>, rb_tree_tag, tree_order_statistics_node_update>;
*/

template <typename T>
struct SegTree
{
    int N;
    int head;
    vector<T> x;
    T defaultT;
    using func = function<T(const T&, const T&)>;
    func merger;
    T _get(int begin, int end, int pos, int l, int r) const
    {
        if (r <= begin or l >= end) return defaultT;
        if (l >= begin and r <= end) return x[pos];
        return merger(_get(begin, end, 2 * pos + 1, l, (l + r) / 2), _get(begin, end, 2 * pos + 2, (l + r) / 2, r));
    }
    SegTree(int N, T defaultT, func merger) : N(N), defaultT(defaultT), merger(merger)
    {
        int N_tmp = 1; while (N_tmp < N) N_tmp <<= 1;
        x.assign(N_tmp*2, defaultT), head = N_tmp - 1;
    }
    SegTree(const vector<T> &vals, T defaultT, func merger) : N(vals.size()), defaultT(defaultT), merger(merger)
    {
        int N_tmp = 1; while (N_tmp < N) N_tmp <<= 1;
        x.assign(N_tmp*2, defaultT), head = N_tmp - 1;
        copy(vals.begin(), vals.end(), x.begin() + head);
        IREP(i, head) x[i] = merger(x[i * 2 + 1], x[i * 2 + 2]);
    }
    SegTree() : SegTree(0, T(), [](T, T) { return T(); }) {}
    void build(const vector<T> &vals) { copy(vals.begin(), vals.end(), x.begin() + head); IREP(i, head) x[i] = merger(x[i * 2 + 1], x[i * 2 + 2]); }
    void update(int pos, T val) { pos += head, x[pos] = val; while (pos) pos = (pos - 1) / 2, x[pos] = merger(x[pos*2+1], x[pos*2+2]); }
    T get(int begin, int end) const { return _get(begin, end, 0, 0, (int)x.size() / 2); }
    friend ostream &operator<<(ostream &os, const SegTree<T> &s) { os << "["; REP(i, s.N) os << s.get(i, i + 1) << ","; os << "]"; return os; }
};
// 参考 要素数N・非負入力を想定したRange Maximum Query
// SegTree<int> rMq(N, 0, [](int a, int b) { return max(a, b); });

int main()
{
    int N, Q;
    cin >> N >> Q;
    vector<pint> a(N);
    REP(i, N)
    {
        cin >> a[i].first;
        a[i].second = i + 1;
    }
    SegTree<pint> rmq(a, pint(1e9, 0), [](const pint &l, const pint &r) { if (l.first < r.first) return l; else return r; });

    REP(_, Q)
    {
        int c, l, r;
        cin >> c >> l >> r;
        l--, r--;
        if (c == 1)
        {
            pint u = rmq.get(l, l + 1);
            pint v = rmq.get(r, r + 1);
            rmq.update(l, pint(v.first, u.second));
            rmq.update(r, pint(u.first, v.second));
        }
        else
        {
            cout << rmq.get(l, r + 1).second << endl;
        }
    }
}

yukicoder

結果

テストケース

ソースコード