結果
問題 | No.995 タピオカオイシクナーレ |
ユーザー | gyouzasushi |
提出日時 | 2020-06-06 17:58:12 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 76 ms / 2,000 ms |
コード長 | 4,449 bytes |
コンパイル時間 | 2,489 ms |
コンパイル使用メモリ | 215,172 KB |
実行使用メモリ | 35,328 KB |
最終ジャッジ日時 | 2024-06-06 02:33:25 |
合計ジャッジ時間 | 5,274 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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 | 35 ms
34,560 KB |
testcase_01 | AC | 34 ms
34,564 KB |
testcase_02 | AC | 34 ms
34,464 KB |
testcase_03 | AC | 33 ms
34,492 KB |
testcase_04 | AC | 34 ms
34,672 KB |
testcase_05 | AC | 32 ms
34,608 KB |
testcase_06 | AC | 34 ms
34,560 KB |
testcase_07 | AC | 33 ms
34,552 KB |
testcase_08 | AC | 34 ms
34,560 KB |
testcase_09 | AC | 34 ms
34,472 KB |
testcase_10 | AC | 33 ms
34,560 KB |
testcase_11 | AC | 33 ms
34,560 KB |
testcase_12 | AC | 34 ms
34,488 KB |
testcase_13 | AC | 33 ms
34,556 KB |
testcase_14 | AC | 33 ms
34,524 KB |
testcase_15 | AC | 34 ms
34,560 KB |
testcase_16 | AC | 74 ms
35,280 KB |
testcase_17 | AC | 76 ms
35,328 KB |
testcase_18 | AC | 76 ms
35,328 KB |
testcase_19 | AC | 73 ms
35,272 KB |
testcase_20 | AC | 74 ms
35,328 KB |
testcase_21 | AC | 72 ms
35,328 KB |
testcase_22 | AC | 73 ms
35,268 KB |
testcase_23 | AC | 74 ms
35,296 KB |
testcase_24 | AC | 73 ms
35,320 KB |
testcase_25 | AC | 73 ms
35,328 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define rrep(i, n) for (int i = (int)(n - 1); i >= 0; i--) #define all(x) (x).begin(), (x).end() #define sz(x) int(x.size()) #define get_unique(x) x.erase(unique(all(x)), x.end()); typedef long long ll; typedef complex<double> Complex; const int INF = 1e9; const ll MOD = 1e9 + 7; const ll LINF = 1e18; template <class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; } template <class T> vector<T> make_vec(size_t a) { return vector<T>(a); } template <class T, class... Ts> auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } template <typename T> ostream& operator<<(ostream& os, vector<T> v) { for (int i = 0; i < sz(v); i++) { os << v[i]; if (i < sz(v) - 1) os << " "; } return os; } template <typename T> vector<vector<T>> matmul(vector<vector<T>>& a, vector<vector<T>>& b) { int n = sz(a), ma = sz(a[0]), mb = sz(b), p = sz(b[0]); assert(ma == mb); int m = ma; vector<vector<T>> ret(n, vector<T>(p)); for (int i = 0; i < n; i++) { for (int j = 0; j < p; j++) { for (int k = 0; k < m; k++) { ret[i][j] += a[i][k] * b[k][j]; } } } return ret; } template <typename T> vector<vector<T>> matpow(vector<vector<T>> mt, ll k) { int n = sz(mt); vector<vector<T>> ret(n); for (int i = 0; i < n; i++) { ret[i].resize(n); ret[i][i] = 1; } vector<vector<T>> now = mt; while (k) { if (k & 1) ret = matmul(ret, now); now = matmul(now, now); k /= 2; } return ret; } struct modint { ll x; modint(ll x = 0) : x((x % MOD + MOD) % MOD) { } ll value() const { return x; } modint operator-() const { return modint(-x); } modint& operator+=(const modint a) { if ((x += a.x) >= MOD) x -= MOD; return *this; } modint& operator-=(const modint a) { if ((x += MOD - a.x) >= MOD) x -= MOD; return *this; } modint& operator*=(const modint a) { (x *= a.x) %= MOD; return *this; } modint operator+(const modint a) const { modint res(*this); return res += a; } modint operator-(const modint a) const { modint res(*this); return res -= a; } modint operator*(const modint a) const { modint res(*this); return res *= a; } modint pow(ll t) const { if (t == 0) return 1; modint a = pow(t >> 1); a *= a; if (t % 2 == 1) a *= *this; return a; } modint inv() const { return pow(MOD - 2); } modint& operator/=(const modint a) { return (*this) *= a.inv(); } modint operator/(const modint a) const { modint res(*this); return res /= a; } }; ostream& operator<<(ostream& os, const modint& x) { os << x.value(); return os; } struct combination { vector<modint> fact, ifact; combination(int n) : fact(n + 1), ifact(n + 1) { assert(n < MOD); fact[0] = 1; for (int i = 1; i <= n; i++) { fact[i] = fact[i - 1] * i; } ifact[n] = fact[n].inv(); for (int i = n; i >= 1; i--) { ifact[i - 1] = ifact[i] * i; } } modint operator()(int n, int k) { if (n < k || k < 0) return 0; return fact[n] * ifact[k] * ifact[n - k]; } modint h(int n, int k) { n += k - 1; if (k < 0 || k > n) return 0; return fact[n] * ifact[k] * ifact[n - k]; } } comb(2002002); int main() { ll n, m, k, p, q; cin >> n >> m >> k >> p >> q; vector<ll> b(n); rep(i, n) cin >> b[i]; modint x = modint(p) / q; modint y = modint(1) - x; vector<vector<modint>> A = {{y, x}, {x, y}}; vector<vector<modint>> B = {{modint(1)}, {modint(0)}}; vector<vector<modint>> C = {{modint(0)}, {modint(1)}}; A = matpow(A, k); B = matmul(A, B); C = matmul(A, C); modint ans = 0; rep(i, n) { if (i < m) ans += B[0][0] * b[i]; else ans += C[0][0] * b[i]; } cout << ans << endl; }