#601616 (C++17) No.1330 Multiply or Divide

• 問題: No.1330 Multiply or Divide
• ユーザー: KoD
• 提出日時: 2021-01-08 23:55:59
• 言語: C++17 (gcc 12.3.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 123 ms / 2,000 ms
• コード長: 2,792 bytes
• コンパイル時間: 1,037 ms
• コンパイル使用メモリ: 91,364 KB
• 実行使用メモリ: 5,248 KB
• 最終ジャッジ日時: 2024-11-16 19:29:57
• 合計ジャッジ時間: 4,195 ms
• ジャッジサーバーID （参考情報）: judge3 / judge1

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	70 ms; 5,248 KB
testcase_02	AC	2 ms; 5,248 KB
testcase_03	AC	2 ms; 5,248 KB
testcase_04	AC	2 ms; 5,248 KB
testcase_05	AC	2 ms; 5,248 KB
testcase_06	AC	38 ms; 5,248 KB
testcase_07	AC	123 ms; 5,248 KB
testcase_08	AC	89 ms; 5,248 KB
testcase_09	AC	92 ms; 5,248 KB
testcase_10	AC	88 ms; 5,248 KB
testcase_11	AC	86 ms; 5,248 KB
testcase_12	AC	88 ms; 5,248 KB
testcase_13	AC	2 ms; 5,248 KB
testcase_14	AC	2 ms; 5,248 KB
testcase_15	AC	2 ms; 5,248 KB
testcase_16	AC	2 ms; 5,248 KB
testcase_17	AC	2 ms; 5,248 KB
testcase_18	AC	84 ms; 5,248 KB
testcase_19	AC	84 ms; 5,248 KB
testcase_20	AC	84 ms; 5,248 KB
testcase_21	AC	84 ms; 5,248 KB
testcase_22	AC	84 ms; 5,248 KB
testcase_23	AC	90 ms; 5,248 KB
testcase_24	AC	2 ms; 5,248 KB
testcase_25	AC	2 ms; 5,248 KB
testcase_26	AC	2 ms; 5,248 KB
testcase_27	AC	2 ms; 5,248 KB
testcase_28	AC	2 ms; 5,248 KB
testcase_29	AC	2 ms; 5,248 KB
testcase_30	AC	2 ms; 5,248 KB
testcase_31	AC	2 ms; 5,248 KB
testcase_32	AC	2 ms; 5,248 KB
testcase_33	AC	2 ms; 5,248 KB
testcase_34	AC	63 ms; 5,248 KB
testcase_35	AC	19 ms; 5,248 KB
testcase_36	AC	56 ms; 5,248 KB
testcase_37	AC	51 ms; 5,248 KB
testcase_38	AC	33 ms; 5,248 KB
testcase_39	AC	23 ms; 5,248 KB
testcase_40	AC	27 ms; 5,248 KB
testcase_41	AC	15 ms; 5,248 KB
testcase_42	AC	47 ms; 5,248 KB
testcase_43	AC	55 ms; 5,248 KB
testcase_44	AC	38 ms; 5,248 KB
testcase_45	AC	38 ms; 5,248 KB

ソースコード

#line 1 "main.cpp"

/**
 * @title Template
 */

#include <iostream>
#include <algorithm>
#include <utility>
#include <numeric>
#include <vector>
#include <array>
#include <cassert>
#include <map>

#line 2 "/Users/kodamankod/Desktop/cpp_programming/Library/other/range.cpp"

#line 4 "/Users/kodamankod/Desktop/cpp_programming/Library/other/range.cpp"

class range {
  struct iter {
    std::size_t itr;
    constexpr iter(std::size_t pos) noexcept: itr(pos) { }
    constexpr void operator ++ () noexcept { ++itr; }
    constexpr bool operator != (iter other) const noexcept { return itr != other.itr; }
    constexpr std::size_t operator * () const noexcept { return itr; }
  };

  struct reviter {
    std::size_t itr;
    constexpr reviter(std::size_t pos) noexcept: itr(pos) { }
    constexpr void operator ++ () noexcept { --itr; }
    constexpr bool operator != (reviter other) const noexcept { return itr != other.itr; }
    constexpr std::size_t operator * () const noexcept { return itr; }
  };

  const iter first, last;

public:
  constexpr range(std::size_t first, std::size_t last) noexcept: first(first), last(std::max(first, last)) { }
  constexpr iter begin() const noexcept { return first; }
  constexpr iter end() const noexcept { return last; }
  constexpr reviter rbegin() const noexcept { return reviter(*last - 1); } 
  constexpr reviter rend() const noexcept { return reviter(*first - 1); } 
};

/**
 * @title Range
 */
#line 2 "/Users/kodamankod/Desktop/cpp_programming/Library/other/chmin_chmax.cpp"

template <class T, class U>
constexpr bool chmin(T &lhs, const U &rhs) {
  if (lhs > rhs) { lhs = rhs; return true; }
  return false;
}

template <class T, class U>
constexpr bool chmax(T &lhs, const U &rhs) {
  if (lhs < rhs) { lhs = rhs; return true; }
  return false;
}

/**
 * @title Chmin/Chmax
 */
#line 17 "main.cpp"

using i32 = std::int32_t;
using i64 = std::int64_t;
using u32 = std::uint32_t;
using u64 = std::uint64_t;
using isize = std::ptrdiff_t;
using usize = std::size_t;

constexpr i32 inf32 = (u32) ~0 >> 2;
constexpr i64 inf64 = (u64) ~0 >> 2;

template <class T>
using Vec = std::vector<T>;

int main() {
  usize N;
  u64 M, P;
  std::cin >> N >> M >> P;
  Vec<u64> A(N);
  for (auto &x: A) {
    std::cin >> x;
  }
  const auto Max = *std::max_element(A.begin(), A.end());
  std::map<usize, u64> map;
  for (auto x: A) {
    usize cnt = 1;
    while (x % P == 0) {
      x /= P;
      cnt += 1;
    }
    chmax(map[cnt], x);
  }
  Vec<u64> dp(1000);
  dp[0] = 1;
  for (auto i: range(0, dp.size())) {
    if (dp[i] > M / Max) {
      std::cout << i + 1 << '\n';
      return 0;
    }
    for (const auto [c, g]: map) {
      if (i + c < dp.size()) {
        chmax(dp[i + c], dp[i] * g);
      }
    }
  }
  std::cout << -1 << '\n';
  return 0;
}