結果

問題 No.1532 Different Products
ユーザー satashunsatashun
提出日時 2022-07-04 22:25:39
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 625 ms / 4,000 ms
コード長 4,399 bytes
コンパイル時間 2,577 ms
コンパイル使用メモリ 207,936 KB
実行使用メモリ 475,636 KB
最終ジャッジ日時 2024-05-08 12:22:54
合計ジャッジ時間 24,994 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge5
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
5,248 KB
testcase_01 AC 102 ms
78,392 KB
testcase_02 AC 1 ms
6,944 KB
testcase_03 AC 2 ms
6,940 KB
testcase_04 AC 2 ms
6,944 KB
testcase_05 AC 2 ms
6,940 KB
testcase_06 AC 2 ms
6,944 KB
testcase_07 AC 2 ms
6,944 KB
testcase_08 AC 6 ms
6,940 KB
testcase_09 AC 49 ms
42,088 KB
testcase_10 AC 132 ms
106,300 KB
testcase_11 AC 108 ms
86,544 KB
testcase_12 AC 297 ms
235,724 KB
testcase_13 AC 212 ms
167,152 KB
testcase_14 AC 550 ms
390,048 KB
testcase_15 AC 51 ms
42,992 KB
testcase_16 AC 113 ms
88,832 KB
testcase_17 AC 126 ms
100,800 KB
testcase_18 AC 113 ms
90,376 KB
testcase_19 AC 317 ms
226,416 KB
testcase_20 AC 507 ms
394,488 KB
testcase_21 AC 165 ms
127,964 KB
testcase_22 AC 205 ms
155,940 KB
testcase_23 AC 152 ms
118,376 KB
testcase_24 AC 464 ms
363,792 KB
testcase_25 AC 263 ms
202,360 KB
testcase_26 AC 38 ms
30,976 KB
testcase_27 AC 225 ms
172,300 KB
testcase_28 AC 175 ms
135,764 KB
testcase_29 AC 136 ms
105,328 KB
testcase_30 AC 296 ms
230,176 KB
testcase_31 AC 302 ms
235,668 KB
testcase_32 AC 354 ms
274,396 KB
testcase_33 AC 277 ms
211,196 KB
testcase_34 AC 446 ms
340,116 KB
testcase_35 AC 357 ms
272,788 KB
testcase_36 AC 425 ms
331,016 KB
testcase_37 AC 73 ms
54,400 KB
testcase_38 AC 498 ms
354,156 KB
testcase_39 AC 406 ms
315,112 KB
testcase_40 AC 417 ms
321,508 KB
testcase_41 AC 596 ms
461,200 KB
testcase_42 AC 551 ms
408,356 KB
testcase_43 AC 550 ms
427,388 KB
testcase_44 AC 603 ms
467,044 KB
testcase_45 AC 620 ms
468,620 KB
testcase_46 AC 594 ms
454,324 KB
testcase_47 AC 620 ms
473,676 KB
testcase_48 AC 617 ms
468,236 KB
testcase_49 AC 617 ms
470,828 KB
testcase_50 AC 616 ms
466,916 KB
testcase_51 AC 625 ms
471,744 KB
testcase_52 AC 617 ms
463,296 KB
testcase_53 AC 624 ms
473,808 KB
testcase_54 AC 610 ms
463,420 KB
testcase_55 AC 623 ms
469,512 KB
testcase_56 AC 606 ms
454,064 KB
testcase_57 AC 594 ms
457,048 KB
testcase_58 AC 607 ms
466,020 KB
testcase_59 AC 582 ms
439,388 KB
testcase_60 AC 616 ms
475,636 KB
testcase_61 AC 2 ms
5,376 KB
testcase_62 AC 2 ms
5,376 KB
testcase_63 AC 621 ms
469,308 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 # 

#pragma region satashun
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;

using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;
using pii = pair<int, int>;
template <class T>
using V = vector<T>;
template <class T>
using VV = V<V<T>>;

template <class T>
V<T> make_vec(size_t a) {
    return V<T>(a);
}

template <class T, class... Ts>
auto make_vec(size_t a, Ts... ts) {
    return V<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...));
}

#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fi first
#define se second
#define rep(i, n) rep2(i, 0, n)
#define rep2(i, m, n) for (int i = m; i < (n); i++)
#define per(i, b) per2(i, 0, b)
#define per2(i, a, b) for (int i = int(b) - 1; i >= int(a); i--)
#define ALL(c) (c).begin(), (c).end()
#define SZ(x) ((int)(x).size())

constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); }

template <class T, class U>
void chmin(T& t, const U& u) {
    if (t > u) t = u;
}
template <class T, class U>
void chmax(T& t, const U& u) {
    if (t < u) t = u;
}

template <class T>
void mkuni(vector<T>& v) {
    sort(ALL(v));
    v.erase(unique(ALL(v)), end(v));
}

template <class T>
vector<int> sort_by(const vector<T>& v, bool increasing = true) {
    vector<int> res(v.size());
    iota(res.begin(), res.end(), 0);

    if (increasing) {
        stable_sort(res.begin(), res.end(),
                    [&](int i, int j) { return v[i] < v[j]; });
    } else {
        stable_sort(res.begin(), res.end(),
                    [&](int i, int j) { return v[i] > v[j]; });
    }
    return res;
}

template <class T, class U>
istream& operator>>(istream& is, pair<T, U>& p) {
    is >> p.first >> p.second;
    return is;
}

template <class T, class U>
ostream& operator<<(ostream& os, const pair<T, U>& p) {
    os << "(" << p.first << "," << p.second << ")";
    return os;
}

template <class T>
istream& operator>>(istream& is, vector<T>& v) {
    for (auto& x : v) {
        is >> x;
    }
    return is;
}

template <class T>
ostream& operator<<(ostream& os, const vector<T>& v) {
    os << "{";
    rep(i, v.size()) {
        if (i) os << ",";
        os << v[i];
    }
    os << "}";
    return os;
}

#ifdef LOCAL
void debug_out() { cerr << endl; }
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << " " << H;
    debug_out(T...);
}
#define debug(...) \
    cerr << __LINE__ << " [" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif

template <class T>
void scan(vector<T>& v, T offset = T(0)) {
    for (auto& x : v) {
        cin >> x;
        x += offset;
    }
}

// suc : 1 = newline, 2 = space
template <class T>
void print(T x, int suc = 1) {
    cout << x;
    if (suc == 1)
        cout << "\n";
    else if (suc == 2)
        cout << " ";
}

template <class T>
void print(const vector<T>& v, int suc = 1) {
    for (int i = 0; i < v.size(); ++i)
        print(v[i], i == int(v.size()) - 1 ? suc : 2);
}

template <class T>
void show(T x) {
    print(x, 1);
}

template <typename Head, typename... Tail>
void show(Head H, Tail... T) {
    print(H, 2);
    show(T...);
}

struct prepare_io {
    prepare_io() {
        cin.tie(nullptr);
        ios::sync_with_stdio(false);
        cout << fixed << setprecision(10);
    }
} prep_io;
#pragma endregion satashun

void slv() {
    int N;
    ll K;
    cin >> N >> K;

    ll sq = 1;
    while (sq * sq <= K) sq++;

    auto dp1 = make_vec<ll>(N + 1, sq);
    auto ps1 = make_vec<ll>(N + 1, sq);
    auto dp2 = make_vec<ll>(N + 1, sq);
    dp1[0][1] = 1;
    rep(i, sq - 1) ps1[0][i + 1] = 1;
    rep(i, sq - 1) dp2[0][i + 1] = 1;

    for (int i = 1; i <= N; ++i) {
        rep(j, sq) {
            dp1[i][j] = dp1[i - 1][j];
            dp2[i][j] = dp2[i - 1][j];
        }
        for (int j = 1; j * i < sq; ++j) {
            dp1[i][j * i] += dp1[i - 1][j];
        }
        rep(j, sq - 1) ps1[i][j + 1] = ps1[i][j] + dp1[i][j + 1];
        rep(j, sq) {
            dp2[i][j] +=
                (j * i < sq ? dp2[i - 1][j * i] : ps1[i - 1][K / (i * j)]);
        }
    }
    show(dp2[N][1] - 1);
}

int main() {
    int cases = 1;
    // cin >> cases;
    rep(i, cases) slv();

    return 0;
}
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