結果
問題 | No.2896 Monotonic Prime Factors |
ユーザー | 👑 AngrySadEight |
提出日時 | 2024-09-20 22:20:53 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 689 ms / 2,000 ms |
コード長 | 4,186 bytes |
コンパイル時間 | 5,588 ms |
コンパイル使用メモリ | 221,568 KB |
実行使用メモリ | 51,840 KB |
最終ジャッジ日時 | 2024-09-20 22:21:16 |
合計ジャッジ時間 | 13,956 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 123 ms
50,056 KB |
testcase_01 | AC | 126 ms
50,100 KB |
testcase_02 | AC | 127 ms
50,212 KB |
testcase_03 | AC | 147 ms
50,272 KB |
testcase_04 | AC | 627 ms
51,760 KB |
testcase_05 | AC | 689 ms
51,816 KB |
testcase_06 | AC | 611 ms
51,776 KB |
testcase_07 | AC | 576 ms
51,748 KB |
testcase_08 | AC | 604 ms
51,840 KB |
testcase_09 | AC | 686 ms
51,836 KB |
testcase_10 | AC | 366 ms
51,036 KB |
testcase_11 | AC | 189 ms
50,428 KB |
testcase_12 | AC | 151 ms
50,204 KB |
testcase_13 | AC | 395 ms
50,940 KB |
testcase_14 | AC | 437 ms
51,176 KB |
testcase_15 | AC | 133 ms
50,208 KB |
testcase_16 | AC | 217 ms
50,432 KB |
testcase_17 | AC | 185 ms
50,284 KB |
testcase_18 | AC | 514 ms
51,712 KB |
testcase_19 | AC | 167 ms
50,408 KB |
ソースコード
#pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include <algorithm> #include <atcoder/all> #include <bitset> #include <cassert> #include <cmath> #include <ctime> #include <functional> #include <iomanip> #include <iostream> #include <map> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <tuple> #include <unordered_map> #include <unordered_set> #include <utility> #include <vector> using namespace std; using namespace atcoder; typedef long long ll; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define repr(i, n) for (int i = (int)(n) - 1; i >= 0; i--) #define repk(i, k, n) for (int i = k; i < (int)(n); i++) #define all(v) v.begin(), v.end() #define mod1 1000000007 #define mod2 998244353 #define mod3 100000007 #define vi vector<int> #define vs vector<string> #define vc vector<char> #define vl vector<ll> #define vb vector<bool> #define vvi vector<vector<int>> #define vvc vector<vector<char>> #define vvl vector<vector<ll>> #define vvb vector<vector<bool>> #define vvvi vector<vector<vector<int>>> #define vvvl vector<vector<vector<ll>>> #define pii pair<int, int> #define pil pair<int, ll> #define pli pair<ll, int> #define pll pair<ll, ll> #define vpii vector<pair<int, int>> #define vpll vector<pair<ll, ll>> #define vvpii vector<vector<pair<int, int>>> #define vvpll vector<vector<pair<ll, ll>>> using mint = modint998244353; template <typename T> void debug(T e) { cerr << e << endl; } template <typename T> void debug(vector<T> &v) { rep(i, v.size()) { cerr << v[i] << " "; } cerr << endl; } template <typename T> void debug(vector<vector<T>> &v) { rep(i, v.size()) { rep(j, v[i].size()) { cerr << v[i][j] << " "; } cerr << endl; } } template <typename T> void debug(vector<pair<T, T>> &v) { rep(i, v.size()) { cerr << v[i].first << " " << v[i].second << endl; } } template <typename T> void debug(set<T> &st) { for (auto itr = st.begin(); itr != st.end(); itr++) { cerr << *itr << " "; } cerr << endl; } template <typename T> void debug(multiset<T> &ms) { for (auto itr = ms.begin(); itr != ms.end(); itr++) { cerr << *itr << " "; } cerr << endl; } template <typename T> void debug(map<T, T> &mp) { for (auto itr = mp.begin(); itr != mp.end(); itr++) { cerr << itr->first << " " << itr->second << endl; } } void debug_out() { cerr << endl; } template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << H << " "; debug_out(T...); } ll my_pow(ll x, ll n, ll mod) { // 繰り返し二乗法.x^nをmodで割った余り. ll ret; if (n == 0) { ret = 1; } else if (n % 2 == 1) { ret = (x * my_pow((x * x) % mod, n / 2, mod)) % mod; } else { ret = my_pow((x * x) % mod, n / 2, mod); } return ret; } ll inv(ll x, ll mod) { return my_pow(x, mod - 2, mod); } int main() { ll Q; cin >> Q; vector<ll> A(Q); vector<ll> B(Q); for (ll i = 0; i < Q; i++) { cin >> A[i] >> B[i]; } vector<ll> fact(2000002); fact[0] = 1; for (ll i = 0; i < 2000001; i++) { fact[i + 1] = (fact[i] * (i + 1)) % mod2; } vector<ll> num_inv(2000002); num_inv[0] = 1; num_inv[1] = 1; for (ll i = 2; i <= 2000001; i++) { num_inv[i] = ((mod2 - mod2 / i) * num_inv[mod2 % i]) % mod2; } vector<ll> fact_inv(2000002); fact_inv[0] = 1; for (ll i = 0; i <= 2000001; i++) { fact_inv[i + 1] = (fact_inv[i] * num_inv[i + 1]) % mod2; } ll prime_sum = 0; for (ll i = 0; i < Q; i++) { ll A_cpy = A[i]; for (ll j = 2; j * j <= A[i]; j++) { while (A_cpy % j == 0) { A_cpy /= j; prime_sum++; } } if (A_cpy != 1) { prime_sum++; } if (prime_sum < B[i]) { cout << 0 << endl; continue; } ll ans = fact[prime_sum - 1]; ans = (ans * fact_inv[B[i] - 1]) % mod2; ans = (ans * fact_inv[prime_sum - B[i]]) % mod2; cout << ans << endl; } }