結果
問題 | No.1474 かさまJ |
ユーザー | kimiyuki |
提出日時 | 2021-04-09 23:04:20 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 182 ms / 2,500 ms |
コード長 | 6,208 bytes |
コンパイル時間 | 2,523 ms |
コンパイル使用メモリ | 212,236 KB |
実行使用メモリ | 7,040 KB |
最終ジャッジ日時 | 2024-06-25 06:50:37 |
合計ジャッジ時間 | 4,222 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 79 ms
6,944 KB |
testcase_06 | AC | 16 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 113 ms
6,940 KB |
testcase_10 | AC | 8 ms
6,940 KB |
testcase_11 | AC | 4 ms
6,944 KB |
testcase_12 | AC | 3 ms
6,940 KB |
testcase_13 | AC | 112 ms
6,944 KB |
testcase_14 | AC | 36 ms
6,940 KB |
testcase_15 | AC | 17 ms
6,944 KB |
testcase_16 | AC | 8 ms
6,944 KB |
testcase_17 | AC | 42 ms
6,944 KB |
testcase_18 | AC | 150 ms
6,944 KB |
testcase_19 | AC | 175 ms
7,040 KB |
testcase_20 | AC | 182 ms
7,040 KB |
ソースコード
#line 1 "main.cpp" #include <bits/stdc++.h> #line 2 "/home/user/Library/utils/macros.hpp" #define REP(i, n) for (int i = 0; (i) < (int)(n); ++ (i)) #define REP3(i, m, n) for (int i = (m); (i) < (int)(n); ++ (i)) #define REP_R(i, n) for (int i = (int)(n) - 1; (i) >= 0; -- (i)) #define REP3R(i, m, n) for (int i = (int)(n) - 1; (i) >= (int)(m); -- (i)) #define ALL(x) std::begin(x), std::end(x) #line 4 "/home/user/Library/modulus/modpow.hpp" inline int32_t modpow(uint_fast64_t x, uint64_t k, int32_t MOD) { assert (/* 0 <= x and */ x < (uint_fast64_t)MOD); uint_fast64_t y = 1; for (; k; k >>= 1) { if (k & 1) (y *= x) %= MOD; (x *= x) %= MOD; } assert (/* 0 <= y and */ y < (uint_fast64_t)MOD); return y; } #line 5 "/home/user/Library/modulus/modinv.hpp" inline int32_t modinv_nocheck(int32_t value, int32_t MOD) { assert (0 <= value and value < MOD); if (value == 0) return -1; int64_t a = value, b = MOD; int64_t x = 0, y = 1; for (int64_t u = 1, v = 0; a; ) { int64_t q = b / a; x -= q * u; std::swap(x, u); y -= q * v; std::swap(y, v); b -= q * a; std::swap(b, a); } if (not (value * x + MOD * y == b and b == 1)) return -1; if (x < 0) x += MOD; assert (0 <= x and x < MOD); return x; } inline int32_t modinv(int32_t x, int32_t MOD) { int32_t y = modinv_nocheck(x, MOD); assert (y != -1); return y; } #line 6 "/home/user/Library/modulus/mint.hpp" /** * @brief quotient ring / 剰余環 $\mathbb{Z}/n\mathbb{Z}$ */ template <int32_t MOD> struct mint { int32_t value; mint() : value() {} mint(int64_t value_) : value(value_ < 0 ? value_ % MOD + MOD : value_ >= MOD ? value_ % MOD : value_) {} mint(int32_t value_, std::nullptr_t) : value(value_) {} explicit operator bool() const { return value; } inline mint<MOD> operator + (mint<MOD> other) const { return mint<MOD>(*this) += other; } inline mint<MOD> operator - (mint<MOD> other) const { return mint<MOD>(*this) -= other; } inline mint<MOD> operator * (mint<MOD> other) const { return mint<MOD>(*this) *= other; } inline mint<MOD> & operator += (mint<MOD> other) { this->value += other.value; if (this->value >= MOD) this->value -= MOD; return *this; } inline mint<MOD> & operator -= (mint<MOD> other) { this->value -= other.value; if (this->value < 0) this->value += MOD; return *this; } inline mint<MOD> & operator *= (mint<MOD> other) { this->value = (uint_fast64_t)this->value * other.value % MOD; return *this; } inline mint<MOD> operator - () const { return mint<MOD>(this->value ? MOD - this->value : 0, nullptr); } inline bool operator == (mint<MOD> other) const { return value == other.value; } inline bool operator != (mint<MOD> other) const { return value != other.value; } inline mint<MOD> pow(uint64_t k) const { return mint<MOD>(modpow(value, k, MOD), nullptr); } inline mint<MOD> inv() const { return mint<MOD>(modinv(value, MOD), nullptr); } inline mint<MOD> operator / (mint<MOD> other) const { return *this * other.inv(); } inline mint<MOD> & operator /= (mint<MOD> other) { return *this *= other.inv(); } }; template <int32_t MOD> mint<MOD> operator + (int64_t value, mint<MOD> n) { return mint<MOD>(value) + n; } template <int32_t MOD> mint<MOD> operator - (int64_t value, mint<MOD> n) { return mint<MOD>(value) - n; } template <int32_t MOD> mint<MOD> operator * (int64_t value, mint<MOD> n) { return mint<MOD>(value) * n; } template <int32_t MOD> mint<MOD> operator / (int64_t value, mint<MOD> n) { return mint<MOD>(value) / n; } template <int32_t MOD> std::istream & operator >> (std::istream & in, mint<MOD> & n) { int64_t value; in >> value; n = value; return in; } template <int32_t MOD> std::ostream & operator << (std::ostream & out, mint<MOD> n) { return out << n.value; } #line 4 "/home/user/Library/modulus/factorial.hpp" template <int32_t MOD> mint<MOD> fact(int n) { static std::vector<mint<MOD> > memo(1, 1); while (n >= memo.size()) { memo.push_back(memo.back() * mint<MOD>(memo.size())); } return memo[n]; } template <int32_t MOD> mint<MOD> inv_fact(int n) { static std::vector<mint<MOD> > memo; if (memo.size() <= n) { int l = memo.size(); int r = n * 1.3 + 100; memo.resize(r); memo[r - 1] = fact<MOD>(r - 1).inv(); for (int i = r - 2; i >= l; -- i) { memo[i] = memo[i + 1] * (i + 1); } } return memo[n]; } #line 5 "/home/user/Library/modulus/choose.hpp" /** * @brief combination / 組合せ ${} _ n C _ r$ (前処理 $O(n)$ + $O(1)$) */ template <int32_t MOD> mint<MOD> choose(int n, int r) { assert (0 <= r and r <= n); return fact<MOD>(n) * inv_fact<MOD>(n - r) * inv_fact<MOD>(r); } #line 5 "main.cpp" using namespace std; constexpr int64_t MOD = 1000000007; mint<MOD> solve(int n, int mp, int mq, int l, const vector<int>& s) { vector<vector<mint<MOD> > > dp(n + 1, vector<mint<MOD> >(mq + 1)); dp[0][0] = 1; REP (i, n) { REP_R (j, n) { // REP (k, mq) { // REP3 (delta, 1, s[i] + 1) { // if (k + s[i] <= mq) { // dp[j + 1][k + s[i]] += dp[j][k]; // } // } // } vector<mint<MOD> > imos(mq + 2); REP (k, mq) { imos[k + 1] += dp[j][k]; imos[k + min(s[i] + 1, mq - k + 1)] -= dp[j][k]; } REP (k, mq + 1) { dp[j + 1][k] += imos[k]; imos[k + 1] += imos[k]; } } } mint<MOD> ans = 0; REP_R (j, n + 1) { REP (k, mq + 1) { int m = mp - (j * l - k); if (m >= 0) { ans += choose<MOD>(m + n - 1, n - 1) * dp[j][k]; } } } return ans; } // generated by oj-template v4.7.2 (https://github.com/online-judge-tools/template-generator) int main() { int n, mp, mq, l; cin >> n >> mp >> mq >> l; vector<int> s(n); REP (i, n) { cin >> s[i]; } auto ans = solve(n, mp, mq, l, s); cout << ans << endl; return 0; }