結果

問題 No.1226 I hate Robot Arms
ユーザー 👑 hitonanodehitonanode
提出日時 2020-09-12 00:08:38
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 301 ms / 2,000 ms
コード長 8,742 bytes
コンパイル時間 2,293 ms
コンパイル使用メモリ 208,528 KB
実行使用メモリ 13,420 KB
最終ジャッジ日時 2023-08-30 10:56:04
合計ジャッジ時間 16,504 ms
ジャッジサーバーID
（参考情報） 		judge15 / 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 2 ms
4,376 KB
testcase_01 AC 2 ms
4,376 KB
testcase_02 AC 83 ms
4,380 KB
testcase_03 AC 92 ms
5,508 KB
testcase_04 AC 100 ms
10,584 KB
testcase_05 AC 92 ms
12,756 KB
testcase_06 AC 235 ms
12,228 KB
testcase_07 AC 74 ms
4,700 KB
testcase_08 AC 27 ms
10,908 KB
testcase_09 AC 174 ms
5,116 KB
testcase_10 AC 21 ms
4,380 KB
testcase_11 AC 115 ms
10,448 KB
testcase_12 AC 62 ms
7,180 KB
testcase_13 AC 48 ms
13,220 KB
testcase_14 AC 208 ms
5,368 KB
testcase_15 AC 18 ms
11,772 KB
testcase_16 AC 237 ms
12,692 KB
testcase_17 AC 67 ms
6,156 KB
testcase_18 AC 43 ms
6,492 KB
testcase_19 AC 118 ms
11,500 KB
testcase_20 AC 105 ms
10,720 KB
testcase_21 AC 149 ms
9,928 KB
testcase_22 AC 251 ms
13,288 KB
testcase_23 AC 248 ms
13,292 KB
testcase_24 AC 243 ms
13,160 KB
testcase_25 AC 248 ms
13,420 KB
testcase_26 AC 247 ms
13,288 KB
testcase_27 AC 300 ms
13,380 KB
testcase_28 AC 300 ms
13,144 KB
testcase_29 AC 301 ms
13,292 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;
using lint = long long;
using pint = pair<int, int>;
using plint = pair<lint, lint>;
struct fast_ios { fast_ios(){ cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_;
#define ALL(x) (x).begin(), (x).end()
#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 V, typename T> void ndfill(V &x, const T &val) { x = val; }
template <typename V, typename T> void ndfill(vector<V> &vec, const T &val) { for (auto &v : vec) ndfill(v, val); }
template <typename T> bool chmax(T &m, const T q) { if (m < q) {m = q; return true;} else return false; }
template <typename T> bool chmin(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> vector<T> srtunq(vector<T> vec) { sort(vec.begin(), vec.end()), vec.erase(unique(vec.begin(), vec.end()), vec.end()); return vec; }
template <typename T> istream &operator>>(istream &is, vector<T> &vec) { for (auto &v : vec) is >> v; return is; }
template <typename T> ostream &operator<<(ostream &os, const vector<T> &vec) { os << '['; for (auto v : vec) os << v << ','; os << ']'; return os; }
#if __cplusplus >= 201703L
template <typename... T> istream &operator>>(istream &is, tuple<T...> &tpl) { std::apply([&is](auto &&... args) { ((is >> args), ...);}, tpl); return is; }
template <typename... T> ostream &operator<<(ostream &os, const tuple<T...> &tpl) { std::apply([&os](auto &&... args) { ((os << args << ','), ...);}, tpl); return os; }
#endif
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; }
#ifdef HITONANODE_LOCAL
#define dbg(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ") " << __FILE__ << endl
#else
#define dbg(x)
#endif

// Nonrecursive Segment Tree (point-update, range-get)
// - Conditions for operations:
//   - merge_data: [TDATA, TDATA] -> TDATA, e(x, y) == e(y, x)
//   - data2ret: [TDATA, TQUERY] -> TRET
//   - merge_ret: [TRET, TRET] -> TRET, g(defaultRET, x) == x, g(x, y) = g(y, x)
//   - commutability f(e(x, y), q) == g(f(x, q), f(y, q))
template <typename TDATA, typename TRET, typename TQUERY>
struct NonrecursiveSegmentTree
{
    int N;
    TRET defaultRET;
    virtual TDATA merge_data(const TDATA &, const TDATA &) = 0;
    virtual TRET data2ret(const TDATA &, const TQUERY &) = 0;
    virtual TRET merge_ret(const TRET &, const TRET &) = 0;
    std::vector<TDATA> data;
    inline TDATA& at(int i) { return data[i]; }

    inline void _merge(int i) { at(i) = merge_data(at(i << 1), at((i << 1) + 1)); }
    void initialize(const std::vector<TDATA> &seq, TRET RET_ZERO) {
        N = seq.size();
        defaultRET = RET_ZERO;
        data = seq;
        data.insert(data.end(), seq.begin(), seq.end());
        for (int i = N - 1; i; i--) _merge(i);
    }
    NonrecursiveSegmentTree() = default;
    void update(int pos, const TDATA &x) {
        assert(pos >= 0 and pos < N);
        at(pos + N) = x;
        for (int i = pos + N; i > 1;) i >>= 1, _merge(i);
    }

    // [l, r), 0-indexed
    TRET get(int l, int r, TQUERY query = NULL) {
        assert(l >= 0 and r <= N);
        TRET retl = defaultRET, retr = defaultRET;
        l += N, r += N;
        while (l < r) {
            if (l & 1) retl = merge_ret(retl, data2ret(data[l++], query));
            if (r & 1) retr = merge_ret(data2ret(data[--r], query), retr);
            l >>= 1, r >>= 1;
        }
        return merge_ret(retl, retr);
    }

    // Calculate smallest r that satisfies g(f(x_l, q), ..., f(x_{r - 1}, q)) >= threshold
    // Assumption: Monotonicity of g(x_l, ..., x_r) about r (l: fixed)
    // Complexity: O(log N)
    int binary_search(int l, const TRET &threshold, TQUERY query = NULL) {
        std::stack<int> rs;
        l += N;
        int r = N * 2;
        TRET retl = defaultRET;
        if (threshold <= retl) return l - N;
        while (l < r) {
            if (l & 1) {
                TRET ret_tmp = merge_ret(retl, data2ret(data[l], query));
                if (threshold <= ret_tmp) {
                    while (l * 2 < N * 2) {
                        ret_tmp = merge_ret(retl, data2ret(data[l * 2], query));
                        if (threshold <= ret_tmp) l *= 2;
                        else retl = ret_tmp, l = l * 2 + 1;
                    }
                    return l - N;
                }
                l++;
                retl = ret_tmp;
            }
            if (r & 1) rs.push(--r);
            l >>= 1, r >>= 1;
        }
        while (!rs.empty()) {
            l = rs.top();
            rs.pop();
            TRET ret_tmp = merge_ret(retl, data2ret(data[l], query));
            if (threshold <= ret_tmp) {
                while (l * 2 < N * 2) {
                    ret_tmp = merge_ret(retl, data2ret(data[l * 2], query));
                    if (threshold <= ret_tmp) l *= 2;
                    else retl = ret_tmp, l = l * 2 + 1;
                }
                return l - N;
            }
            retl = ret_tmp;
        }
        return N;
    }
};

struct T
{
    int deg_out;
    double dx, dy;
};

const long double PI = acosl(-1.0l);

struct SegmentTree : public NonrecursiveSegmentTree<T, T, bool>
{
    using SegTree = NonrecursiveSegmentTree<T, T, bool>;
    T merge_data(const T &vl, const T &vr) override {
        double rad = vl.deg_out / 360.0 * PI * 2;

        double dx = vl.dx + cos(rad) * vr.dx - sin(rad) * vr.dy;
        double dy = vl.dy + sin(rad) * vr.dx + cos(rad) * vr.dy;
        return T{(vl.deg_out + vr.deg_out + 720) % 360, dx, dy};
    };
    T data2ret(const T &v, const bool &q) override { return v; }
    T merge_ret(const T &vl, const T &vr) override { return merge_data(vl, vr); };
    SegmentTree(const std::vector<T> &seq, T defaultmin) : SegTree::NonrecursiveSegmentTree()
    {
        SegTree::initialize(seq, defaultmin);
    };
};


int main()
{
    int N, Q;
    cin >> N >> Q;
    vector<T> vec(N + 1);
    vector<int> deg_now(N + 1, 0);
    vector<int> len_now(N + 1, 1);
    len_now[0] = 0;
    FOR(i, 1, N + 1) vec[i].dx = 1;
    SegmentTree tree(vec, vec[0]);

    while (Q--)
    {
        int q, i, x;
        cin >> q >> i;
        if (q == 0)
        {
            cin >> x;
            i--;
            deg_now[i] = x;
            vec[i].deg_out = deg_now[i];
            tree.update(i, vec[i]);
        }
        if (q == 1)
        {
            cin >> x;
            vec[i].dx /= len_now[i];
            vec[i].dy /= len_now[i];
            len_now[i] = x;
            vec[i].dx *= len_now[i];
            vec[i].dy *= len_now[i];
            tree.update(i, vec[i]);
        }
        if (q == 2)
        {
            auto ret = tree.get(0, i + 1);
            cout << ret.dx << ' ' << ret.dy << '\n';
        }
    }
}
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