結果
問題 | No.1731 Product of Subsequence |
ユーザー | nawawan |
提出日時 | 2021-11-05 22:20:26 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 830 ms / 2,000 ms |
コード長 | 2,990 bytes |
コンパイル時間 | 2,263 ms |
コンパイル使用メモリ | 213,312 KB |
実行使用メモリ | 13,272 KB |
最終ジャッジ日時 | 2024-11-08 04:43:56 |
合計ジャッジ時間 | 10,614 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | 671 ms
13,260 KB |
testcase_01 | AC | 5 ms
12,928 KB |
testcase_02 | AC | 6 ms
13,056 KB |
testcase_03 | AC | 6 ms
13,056 KB |
testcase_04 | AC | 7 ms
13,056 KB |
testcase_05 | AC | 6 ms
13,056 KB |
testcase_06 | AC | 5 ms
13,132 KB |
testcase_07 | AC | 6 ms
13,056 KB |
testcase_08 | AC | 27 ms
13,184 KB |
testcase_09 | AC | 8 ms
13,056 KB |
testcase_10 | AC | 823 ms
13,264 KB |
testcase_11 | AC | 712 ms
13,184 KB |
testcase_12 | AC | 7 ms
13,112 KB |
testcase_13 | AC | 18 ms
13,004 KB |
testcase_14 | AC | 631 ms
13,184 KB |
testcase_15 | AC | 5 ms
13,132 KB |
testcase_16 | AC | 8 ms
13,056 KB |
testcase_17 | AC | 6 ms
13,080 KB |
testcase_18 | AC | 588 ms
13,260 KB |
testcase_19 | AC | 18 ms
13,056 KB |
testcase_20 | AC | 478 ms
13,272 KB |
testcase_21 | AC | 830 ms
13,260 KB |
testcase_22 | AC | 8 ms
13,056 KB |
testcase_23 | AC | 7 ms
13,184 KB |
testcase_24 | AC | 19 ms
13,056 KB |
testcase_25 | AC | 12 ms
13,056 KB |
testcase_26 | AC | 135 ms
13,128 KB |
testcase_27 | AC | 180 ms
13,132 KB |
testcase_28 | AC | 372 ms
13,260 KB |
testcase_29 | AC | 150 ms
13,172 KB |
testcase_30 | AC | 680 ms
13,264 KB |
testcase_31 | AC | 7 ms
13,184 KB |
testcase_32 | AC | 5 ms
13,184 KB |
testcase_33 | AC | 8 ms
13,056 KB |
testcase_34 | AC | 56 ms
13,132 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; template<const int MOD> struct modint{ long long val; modint(): val(0) {} modint(long long x){ if(x < 0) val = x % MOD + MOD; else val = x % MOD; } modint(const modint &t){ val = t.val; } modint& operator =(const modint m){ val = m.val; return *this; } modint operator -(){ return modint(-val); } modint& operator-=(const modint &m){ val -= m.val; if(val < 0) val += MOD; return *this; } modint& operator+=(const modint &m){ val += m.val; if(val >= MOD) val -= MOD; return *this; } modint& operator*=(const modint &m){ val *= m.val; val %= MOD; return *this; } modint& operator/=(modint m){ *this *= m.inv(); return *this; } modint inv(){ long long x = 1, y = 0; long long a = val, b = MOD; while(b != 0){ long long t = a / b; a -= t * b; x -= t * y; swap(a, b); swap(x, y); } x %= MOD; if(x < 0) x += MOD; return modint(x); } modint pow(long long k){ long long res = 1; long long v = val; while(k > 0){ if(k & 1) res = res * v % MOD; v = v * v % MOD; k >>= 1; } return modint(res); } bool operator==(const modint &m){ return val == m.val; } modint operator+(const modint &m){ return modint(*this) += m; } modint operator-(const modint &m){ return modint(*this) -= m; } modint operator*(const modint &m){ return modint(*this) *= m; } modint operator/(const modint &m){ return modint(*this) /= m; } bool operator!=(const modint &m){ return modint(*this).val != m.val; } bool operator!=(const int &m){ return modint(*this).val != m; } }; const int MOD = 1000000007; using mint = modint<MOD>; const int MAX = 410000; mint fac[MAX], finv[MAX], inv[MAX]; void COMinit(){ fac[0] = fac[1] = 1; finv[0] = finv[1] = 1; inv[1] = 1; for(int i = 2; i < MAX; i++){ fac[i] = fac[i - 1] * i; inv[i] = mint(MOD) - inv[MOD % i] * (MOD / i); finv[i] = finv[i - 1] * inv[i]; } } mint COM(int n, int k){ if (n < k) return 0; if (n < 0 || k < 0) return 0; return fac[n] * finv[k] * finv[n - k]; } int main(){ int N, K; cin >> N >> K; vector<long long> A(N); for(int i = 0; i < N; i++) cin >> A[i]; map<long long, mint> dp; dp[1] += 1; for(int i = 0; i < N; i++){ map<long long, mint> m2; for(auto [now, cnt] : dp){ long long rest = K / now; long long g = gcd(rest, A[i]); m2[now] += cnt; m2[now * g] += cnt; } dp.swap(m2); } dp[1] -= 1; cout << dp[K].val << endl; }