結果

問題 No.2961 Shiny Monster Master
ユーザー Slephy
提出日時 2024-12-18 21:43:00
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 19 ms / 1,777 ms
コード長 3,360 bytes
コンパイル時間 3,435 ms
コンパイル使用メモリ 260,316 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-12-18 21:45:33
合計ジャッジ時間 7,477 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
(要ログイン)
ファイルパターン 結果
other AC * 77
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 ll = long long;
const int INF = (int)1e9 + 1001010;
const ll llINF = (long long)4e18 + 22000020;
const string endn = "\n";
template <class T> inline auto vector2(size_t i, size_t j, const T &init = T()) {
    return vector(i, vector<T>(j, init));
}
const string ELM_SEP = " ", VEC_SEP = endn;
template <class T> istream &operator>>(istream &i, vector<T> &A) {
    for(auto &I : A) i >> I;
    return i;
}
template <class T> ostream &operator<<(ostream &o, const vector<T> &A) {
    int i = A.size();
    for(const auto &I : A) o << I << (--i ? ELM_SEP : "");
    return o;
}
template <class T> ostream &operator<<(ostream &o, const vector<vector<T>> &A) {
    int i = A.size();
    for(const auto &I : A) o << I << (--i ? VEC_SEP : "");
    return o;
}
template <class T> vector<T> &operator++(vector<T> &A, int) {
    for(auto &I : A) I++;
    return A;
}
template <class T> vector<T> &operator--(vector<T> &A, int) {
    for(auto &I : A) I--;
    return A;
}
template <class T, class U> bool chmax(T &a, const U &b) { return ((a < b) ? (a = b, true) : false); }
template <class T, class U> bool chmin(T &a, const U &b) { return ((a > b) ? (a = b, true) : false); }
ll floor(ll a, ll b) {
    if(b < 0) a = -a, b = -b;
    return (a >= 0) ? a / b : (a + 1) / b - 1;
}
ll ceil(ll a, ll b) {
    if(b < 0) a = -a, b = -b;
    return (a > 0) ? (a - 1) / b + 1 : a / b;
}
ll check_bit(unsigned long long val, unsigned long long digit) { return (val >> digit) & 1; }
#ifdef DEBUG
#include <cpp-dump/cpp-dump.hpp>
#define dump(...) cpp_dump(__VA_ARGS__)
namespace cp = cpp_dump;
struct InitCppDump {
    InitCppDump() {
        if(!isatty(fileno(stderr))) CPP_DUMP_SET_OPTION(es_style, cpp_dump::types::es_style_t::no_es);
        CPP_DUMP_SET_OPTION(log_label_func, cp::log_label::line());
        CPP_DUMP_SET_OPTION(max_iteration_count, 30);
    }
} init_cpp_dump;
#else
#define dump(...)
#endif
// ==================== ここまでテンプレ ====================

// O(1)
// where 0 <= inf <= sup
ll _n_multiple_between(ll inf, ll sup, ll n) {
    assert(0 <= inf && inf <= sup);
    return floor(sup, n) - floor(inf - 1, n);
}

// O(1)
// where inf <= sup
// return the number of multiple of n betweem [inf, sup];
ll n_multiple_between(ll inf, ll sup, ll n) {
    if(inf > sup) return 0;
    if(inf <= 0 && sup <= 0) return _n_multiple_between(-sup, -inf, n);
    else if(inf <= 0 && sup >= 0) return _n_multiple_between(0, -inf, n) + _n_multiple_between(0, sup, n) - 1;
    else return _n_multiple_between(inf, sup, n);
}

// O(1)
// where inf <= sup
// return the number of nk + r betweem [inf, sup] (where k is integer)
ll n_multiple_between(ll inf, ll sup, ll n, ll r) { return n_multiple_between(inf - r, sup - r, n); }

int main(int argc, char *argv[]) {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    ll R, N;
    cin >> R >> N;
    vector<ll> a(N);
    cin >> a;
    ranges::sort(a);

    ll q; cin >> q;
    for(int qid = 0; qid < q; qid++){
        ll l, r; cin >> l >> r;
        // [0, x]
        auto count_seg = [&](ll x) -> ll {
            ll ret = N * (x / R);
            x %= R;
            ret += ranges::upper_bound(a, x) - a.begin();
            return ret;
        };

        ll ans = count_seg(r) - count_seg(l - 1);
        cout << ans << endn;
    }
    return 0;
}
0