結果

問題 No.1330 Multiply or Divide
ユーザー heno239heno239
提出日時 2021-01-08 22:37:55
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
WA  
実行時間 -
コード長 3,807 bytes
コンパイル時間 2,143 ms
コンパイル使用メモリ 144,052 KB
実行使用メモリ 11,144 KB
最終ジャッジ日時 2024-11-16 13:43:24
合計ジャッジ時間 4,219 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
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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 4 ms
5,504 KB
testcase_01 AC 29 ms
11,012 KB
testcase_02 WA -
testcase_03 AC 4 ms
5,504 KB
testcase_04 AC 4 ms
5,504 KB
testcase_05 AC 3 ms
5,376 KB
testcase_06 AC 20 ms
6,656 KB
testcase_07 AC 156 ms
11,012 KB
testcase_08 AC 38 ms
11,140 KB
testcase_09 AC 38 ms
11,136 KB
testcase_10 AC 34 ms
11,144 KB
testcase_11 AC 33 ms
11,000 KB
testcase_12 AC 35 ms
11,040 KB
testcase_13 AC 4 ms
5,504 KB
testcase_14 AC 4 ms
5,376 KB
testcase_15 AC 4 ms
5,504 KB
testcase_16 AC 4 ms
5,504 KB
testcase_17 AC 3 ms
5,504 KB
testcase_18 AC 25 ms
6,784 KB
testcase_19 AC 25 ms
6,784 KB
testcase_20 AC 24 ms
6,656 KB
testcase_21 AC 24 ms
6,784 KB
testcase_22 AC 26 ms
6,784 KB
testcase_23 WA -
testcase_24 AC 4 ms
5,376 KB
testcase_25 AC 4 ms
5,376 KB
testcase_26 WA -
testcase_27 AC 4 ms
5,504 KB
testcase_28 AC 4 ms
5,504 KB
testcase_29 AC 4 ms
5,504 KB
testcase_30 AC 3 ms
5,376 KB
testcase_31 AC 4 ms
5,632 KB
testcase_32 AC 4 ms
5,504 KB
testcase_33 AC 3 ms
5,376 KB
testcase_34 AC 20 ms
6,400 KB
testcase_35 AC 8 ms
5,632 KB
testcase_36 AC 18 ms
6,272 KB
testcase_37 AC 16 ms
6,144 KB
testcase_38 AC 12 ms
5,888 KB
testcase_39 AC 9 ms
5,632 KB
testcase_40 AC 10 ms
5,760 KB
testcase_41 AC 7 ms
5,728 KB
testcase_42 AC 15 ms
6,144 KB
testcase_43 AC 17 ms
6,272 KB
testcase_44 AC 42 ms
11,140 KB
testcase_45 AC 49 ms
11,140 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 GCC optimize("Ofast")
//#pragma GCC target ("sse4")

#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<cmath>
#include<algorithm>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<random>
#include<map>
#include<set>
#include<bitset>
#include<stack>
#include<unordered_map>
#include<unordered_set>
#include<utility>
#include<cassert>
#include<complex>
#include<numeric>
#include<array>
using namespace std;

//#define int long long
typedef long long ll;

typedef unsigned long long ul;
typedef unsigned int ui;
constexpr ll mod = 1000000007;
const ll INF = mod * mod;
typedef pair<int, int>P;
#define stop char nyaa;cin>>nyaa;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)
#define all(v) (v).begin(),(v).end()
typedef pair<ll, ll> LP;
typedef double ld;
typedef pair<ld, ld> LDP;
const ld eps = 1e-12;
const ld pi = acosl(-1.0);

ll mod_pow(ll x, ll n, ll m = mod) {
	if (n < 0) {
		ll res = mod_pow(x, -n, m);
		return mod_pow(res, m - 2, m);
	}
	if (abs(x) >= m)x %= m;
	if (x < 0)x += m;
	ll res = 1;
	while (n) {
		if (n & 1)res = res * x % m;
		x = x * x % m; n >>= 1;
	}
	return res;
}
struct modint {
	ll n;
	modint() :n(0) { ; }
	modint(ll m) :n(m) {
		if (n >= mod)n %= mod;
		else if (n < 0)n = (n % mod + mod) % mod;
	}
	operator int() { return n; }
};
bool operator==(modint a, modint b) { return a.n == b.n; }
modint operator+=(modint& a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; }
modint operator-=(modint& a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; }
modint operator*=(modint& a, modint b) { a.n = ((ll)a.n * b.n) % mod; return a; }
modint operator+(modint a, modint b) { return a += b; }
modint operator-(modint a, modint b) { return a -= b; }
modint operator*(modint a, modint b) { return a *= b; }
modint operator^(modint a, ll n) {
	if (n == 0)return modint(1);
	modint res = (a * a) ^ (n / 2);
	if (n % 2)res = res * a;
	return res;
}

ll inv(ll a, ll p) {
	return (a == 1 ? 1 : (1 - p * inv(p % a, a)) / a + p);
}
modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); }
modint operator/=(modint& a, modint b) { a = a / b; return a; }
const int max_n = 1 << 17;
modint fact[max_n], factinv[max_n];
void init_f() {
	fact[0] = modint(1);
	for (int i = 0; i < max_n - 1; i++) {
		fact[i + 1] = fact[i] * modint(i + 1);
	}
	factinv[max_n - 1] = modint(1) / fact[max_n - 1];
	for (int i = max_n - 2; i >= 0; i--) {
		factinv[i] = factinv[i + 1] * modint(i + 1);
	}
}
modint comb(int a, int b) {
	if (a < 0 || b < 0 || a < b)return 0;
	return fact[a] * factinv[b] * factinv[a - b];
}
modint combP(int a, int b) {
	if (a < 0 || b < 0 || a < b)return 0;
	return fact[a] * factinv[a - b];
}


void solve() {
	ll n, m, p; cin >> n >> m >> p;
	vector<ll> a(n);
	rep(i, n)cin >> a[i];
	if (m == 1) {
		cout << 0 << "\n"; return;
	}
	ll ma = 0;
	rep(i, n)ma = max(ma, a[i]);
	m = (m + ma - 1) / ma;
	if (m == 1) {
		cout << 1 << "\n"; return;
	}
	vector<LP> vs;
	rep(i, n) {
		int cop = a[i];
		int cost = 1;
		while (cop % p == 0) {
			cop /= p;
			cost++;
		}
		if(cop>1)vs.push_back({ cop,cost });
	}
	if (vs.empty()) {
		cout << -1 << "\n"; return;
	}
	vector<ll> dp(1000);
	dp[0] = 1;
	rep(i, 1000) {
		if (dp[i] >= m) {
			cout << i + 1 << "\n"; return;
		}
		rep(j, vs.size()) {
			int to = i + vs[j].second;
			ll val = dp[i] * vs[j].first;
			dp[to] = max(dp[to], val);
		}
	}
}

signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	//cout << fixed << setprecision(15);
	//init_f();
	//init();
	//expr();
	//int t; cin >> t; rep(i, t)
	solve();
	return 0;
}
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