結果
| 問題 |
No.1330 Multiply or Divide
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-01-08 21:42:19 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,412 bytes |
| コンパイル時間 | 2,259 ms |
| コンパイル使用メモリ | 200,188 KB |
| 最終ジャッジ日時 | 2025-01-17 11:31:41 |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 39 WA * 7 |
ソースコード
/**
* code generated by JHelper
* More info: https://github.com/AlexeyDmitriev/JHelper
* @author Kein Yukiyoshi
*/
// clang-format off
#include <bits/stdc++.h>
//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx")
#define int long long
#define map unordered_map
using namespace std;
#define stoi stoll
#define fi first
#define se second
#define rep(i, n) for(int i=0, i##_len=(n); i<i##_len; i++)
#define rep2(i, a, b) for (int i = (int)(a), i##_len=(b); i < i##_len; i++)
#define rep3(i, a, b) for (int i = (int)(a), i##_len=(b); i >= i##_len; i--)
#define FOR(i, a) for (auto &i: a)
#define ALL(obj) begin(obj), end(obj)
#define _max(x) *max_element(ALL(x))
#define _min(x) *min_element(ALL(x))
#define _sum(x) accumulate(ALL(x), 0LL)
const int MOD = 1000000007;
// const int MOD = 998244353;
const int INF = (int)(1e13 + 7);
const double EPS = 1e-8;
const double PI = 3.14159265358979;
template <class T> using V = vector<T>;
template <class T> using VV = vector<vector<T>>;
template <class T> using VVV = vector<vector<vector<T>>>;
template <class T, class S> using P = pair<T, S>;
template<class T> bool chmax(T &a, const T &b) {if (a < b) {a = b;return true;}return false;}
template<class T> bool chmin(T &a, const T &b) {if (b < a) {a = b;return true;}return false;}
int _ceil(int a, int b) { return (a >= 0 ? (a + (b - 1)) / b : (a - (b - 1)) / b); }
int _mod(int a) {return a >= 0 ? a % MOD : a - (MOD * _ceil(a, MOD));}
int _pow(int a, int b) {int res = 1;for (a %= MOD; b; a = a * a % MOD, b >>= 1)if (b & 1) res = res * a % MOD;return res;}
struct mint {long long x;mint(long long x = 0) : x((x % MOD + MOD) % MOD) {}mint operator-() const { return mint(-x); }mint &operator+=(const mint a) {if ((x += a.x) >= MOD) x -= MOD;return *this;}mint &operator-=(const mint a) {if ((x += MOD - a.x) >= MOD) x -= MOD;return *this;}mint &operator*=(const mint a) { (x *= a.x) %= MOD;return *this; }mint operator+(const mint a) const { return mint(*this) += a; }mint operator-(const mint a) const { return mint(*this) -= a; } mint operator*(const mint a) const { return mint(*this) *= a; }mint pow(long long t) const {if (!t) return 1;mint a = pow(t >> 1);a *= a;if (t & 1) a *= *this;return a;}mint inv() const { return pow(MOD - 2); }mint &operator/=(const mint a) { return *this *= a.inv(); }mint operator/(const mint a) const { return mint(*this) /= a; }};istream &operator>>(istream &is, mint &a) { return is >> a.x; }ostream &operator<<(ostream &os, const mint &a) { return os << a.x; }
// clang-format on
class No1330MultiplyOrDivide {
public:
static void solve(istream &cin, ostream &cout) {
cin.tie(nullptr);
cout.tie(nullptr);
ios::sync_with_stdio(false);
cout << fixed << setprecision(15);
int N, M, P;
cin >> N >> M >> P;
V<int> A(N);
rep(i, N) cin >> A[i];
V<int> B = A;
rep(i, N) while (A[i] % P == 0) A[i] /= P;
int x = 1;
int ans = 0;
sort(ALL(A));
sort(ALL(B));
if (A[A.size() - 1] == 1 and B[B.size() - 1] <= M) {
cout << -1 << endl;
return;
}
while (x <= M) {
if (x * B[B.size() - 1] > M) {
cout << ans + 1 << endl;
return;
}
x *= A[A.size() - 1];
ans++;
}
cout << ans << endl;
}
};
signed main() {
No1330MultiplyOrDivide solver;
std::istream& in(std::cin);
std::ostream& out(std::cout);
solver.solve(in, out);
return 0;
}