結果

問題 No.2652 [Cherry 6th Tune N] Δρονε χιρχλινγ
ユーザー tokusakuraitokusakurai
提出日時 2024-02-23 22:35:49
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 120 ms / 2,000 ms
コード長 4,827 bytes
コンパイル時間 2,723 ms
コンパイル使用メモリ 218,076 KB
実行使用メモリ 16,256 KB
最終ジャッジ日時 2024-02-23 22:36:24
合計ジャッジ時間 27,110 ms
ジャッジサーバーID
(参考情報)
judge12 / judge11
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
6,676 KB
testcase_01 AC 84 ms
6,676 KB
testcase_02 AC 86 ms
6,676 KB
testcase_03 AC 86 ms
6,676 KB
testcase_04 AC 111 ms
6,676 KB
testcase_05 AC 85 ms
6,676 KB
testcase_06 AC 85 ms
6,676 KB
testcase_07 AC 89 ms
9,404 KB
testcase_08 AC 88 ms
9,216 KB
testcase_09 AC 90 ms
10,844 KB
testcase_10 AC 88 ms
10,124 KB
testcase_11 AC 93 ms
10,004 KB
testcase_12 AC 88 ms
9,928 KB
testcase_13 AC 93 ms
14,724 KB
testcase_14 AC 88 ms
16,084 KB
testcase_15 AC 90 ms
11,708 KB
testcase_16 AC 89 ms
9,964 KB
testcase_17 AC 90 ms
11,236 KB
testcase_18 AC 91 ms
10,584 KB
testcase_19 AC 90 ms
13,384 KB
testcase_20 AC 92 ms
16,080 KB
testcase_21 AC 92 ms
16,240 KB
testcase_22 AC 92 ms
16,076 KB
testcase_23 AC 91 ms
16,240 KB
testcase_24 AC 92 ms
16,092 KB
testcase_25 AC 92 ms
16,064 KB
testcase_26 AC 92 ms
16,160 KB
testcase_27 AC 93 ms
16,072 KB
testcase_28 AC 92 ms
16,256 KB
testcase_29 AC 92 ms
16,244 KB
testcase_30 AC 92 ms
16,072 KB
testcase_31 AC 92 ms
16,068 KB
testcase_32 AC 92 ms
16,176 KB
testcase_33 AC 92 ms
16,116 KB
testcase_34 AC 120 ms
16,096 KB
testcase_35 AC 92 ms
16,084 KB
testcase_36 AC 92 ms
16,096 KB
testcase_37 AC 93 ms
16,072 KB
testcase_38 AC 93 ms
16,116 KB
testcase_39 AC 94 ms
16,100 KB
testcase_40 AC 83 ms
14,052 KB
testcase_41 AC 82 ms
15,784 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 per(i, n) for (int i = (n)-1; i >= 0; i--)
#define rep2(i, l, r) for (int i = (l); i < (r); i++)
#define per2(i, l, r) for (int i = (r)-1; i >= (l); i--)
#define each(e, v) for (auto &e : v)
#define MM << " " <<
#define pb push_back
#define eb emplace_back
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#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>;

template <typename T>
using minheap = priority_queue<T, vector<T>, greater<T>>;

template <typename T>
using maxheap = priority_queue<T>;

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;
}

template <typename T>
int flg(T x, int i) {
    return (x >> i) & 1;
}

int pct(int x) { return __builtin_popcount(x); }
int pct(ll x) { return __builtin_popcountll(x); }
int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); }
int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); }
int botbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); }
int botbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); }

template <typename T>
void print(const vector<T> &v, T x = 0) {
    int n = v.size();
    for (int i = 0; i < n; i++) cout << v[i] + x << (i == n - 1 ? '\n' : ' ');
    if (v.empty()) cout << '\n';
}

template <typename T>
void printn(const vector<T> &v, T x = 0) {
    int n = v.size();
    for (int i = 0; i < n; i++) cout << v[i] + x << '\n';
}

template <typename T>
int lb(const vector<T> &v, T x) {
    return lower_bound(begin(v), end(v), x) - begin(v);
}

template <typename T>
int ub(const vector<T> &v, T x) {
    return upper_bound(begin(v), end(v), x) - begin(v);
}

template <typename T>
void rearrange(vector<T> &v) {
    sort(begin(v), end(v));
    v.erase(unique(begin(v), end(v)), end(v));
}

template <typename T>
vector<int> id_sort(const vector<T> &v, bool greater = false) {
    int n = v.size();
    vector<int> ret(n);
    iota(begin(ret), end(ret), 0);
    sort(begin(ret), end(ret), [&](int i, int j) { return greater ? v[i] > v[j] : v[i] < v[j]; });
    return ret;
}

template <typename T>
void reorder(vector<T> &a, const vector<int> &ord) {
    int n = a.size();
    vector<T> b(n);
    for (int i = 0; i < n; i++) b[i] = a[ord[i]];
    swap(a, b);
}

template <typename T>
T floor(T x, T y) {
    assert(y != 0);
    if (y < 0) x = -x, y = -y;
    return (x >= 0 ? x / y : (x - y + 1) / y);
}

template <typename T>
T ceil(T x, T y) {
    assert(y != 0);
    if (y < 0) x = -x, y = -y;
    return (x >= 0 ? (x + y - 1) / y : x / y);
}

template <typename S, typename T>
pair<S, T> operator+(const pair<S, T> &p, const pair<S, T> &q) {
    return make_pair(p.first + q.first, p.second + q.second);
}

template <typename S, typename T>
pair<S, T> operator-(const pair<S, T> &p, const pair<S, T> &q) {
    return make_pair(p.first - q.first, p.second - q.second);
}

template <typename S, typename T>
istream &operator>>(istream &is, pair<S, T> &p) {
    S a;
    T b;
    is >> a >> b;
    p = make_pair(a, b);
    return is;
}

template <typename S, typename T>
ostream &operator<<(ostream &os, const pair<S, T> &p) {
    return os << p.first << ' ' << p.second;
}

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

constexpr int inf = (1 << 30) - 1;
constexpr ll INF = (1LL << 60) - 1;
// constexpr int MOD = 1000000007;
constexpr int MOD = 998244353;

template <typename T>
T kth_root_integer(T a, int k) {
    if (k == 1) return a;
    auto check = [&](T x) {
        T mul = 1;
        for (int j = 0; j < k; j++) {
            if (__builtin_mul_overflow(mul, x, &mul)) return false;
        }
        return mul <= a;
    };
    int n = 4 * sizeof(T);
    T ret = 0;
    for (int i = n - 1; i >= 0; i--) {
        if (check(ret | (T(1) << i))) ret |= T(1) << i;
    }
    return ret;
}

void solve() {
    ll N, L;
    cin >> N >> L;

    vector<ll> x(N), y(N);
    rep(i, N) cin >> x[i] >> y[i];

    ll K = kth_root_integer(N, 2);
    ll D = ceil(L + 1, K);

    vector<vector<pll>> ps(K);
    rep(i, N) ps[x[i] / D].eb(y[i], x[i]);

    vector<pll> ans;
    rep(i, K) {
        if (i % 2 == 0) {
            sort(all(ps[i]));
        } else {
            sort(rall(ps[i]));
        }
        for (auto [y, x] : ps[i]) ans.eb(x, y);
    }

    cout << sz(ans) << '\n';
    each(e, ans) cout << e << '\n';
}

int main() {
    int T = 1;
    cin >> T;
    while (T--) solve();
}
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