結果
問題 | No.886 Direct |
ユーザー | risujiroh |
提出日時 | 2019-09-13 22:45:30 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 237 ms / 4,000 ms |
コード長 | 2,558 bytes |
コンパイル時間 | 1,546 ms |
コンパイル使用メモリ | 170,464 KB |
実行使用メモリ | 14,896 KB |
最終ジャッジ日時 | 2024-07-04 10:08:13 |
合計ジャッジ時間 | 4,079 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
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 1 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 1 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 3 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 1 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 3 ms
5,376 KB |
testcase_23 | AC | 26 ms
5,376 KB |
testcase_24 | AC | 60 ms
7,168 KB |
testcase_25 | AC | 23 ms
5,376 KB |
testcase_26 | AC | 18 ms
5,376 KB |
testcase_27 | AC | 115 ms
9,756 KB |
testcase_28 | AC | 120 ms
9,856 KB |
testcase_29 | AC | 2 ms
5,376 KB |
testcase_30 | AC | 2 ms
5,376 KB |
testcase_31 | AC | 234 ms
14,828 KB |
testcase_32 | AC | 234 ms
14,848 KB |
testcase_33 | AC | 232 ms
14,760 KB |
testcase_34 | AC | 234 ms
14,896 KB |
testcase_35 | AC | 237 ms
14,848 KB |
コンパイルメッセージ
main.cpp:11:20: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 11 | constexpr ModInt(auto x) : v(x >= 0 ? x % P : (P - -x % P) % P) {} | ^~~~ main.cpp:38:9: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 38 | M pow(auto n) const { | ^~~~ main.cpp:44:22: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 44 | friend M operator*(auto l, M r) { return M(l) *= r; } | ^~~~ main.cpp:45:22: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 45 | friend M operator/(auto l, M r) { return M(l) /= r; } | ^~~~ main.cpp:46:22: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 46 | friend M operator+(auto l, M r) { return M(l) += r; } | ^~~~ main.cpp:47:22: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 47 | friend M operator-(auto l, M r) { return M(l) -= r; } | ^~~~ main.cpp:50:26: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 50 | friend bool operator==(auto l, M r) { return M(l) == r; } | ^~~~ main.cpp:51:26: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 51 | friend bool operator!=(auto l, M r) { return !(l == r); } | ^~~~
ソースコード
#include <bits/stdc++.h> using namespace std; using lint = long long; template<class T = int> using V = vector<T>; template<class T = int> using VV = V< V<T> >; template<unsigned P> struct ModInt { using M = ModInt; unsigned v; constexpr ModInt() : v(0) {} constexpr ModInt(auto x) : v(x >= 0 ? x % P : (P - -x % P) % P) {} constexpr ModInt(unsigned v, int) : v(v) {} static constexpr unsigned p() { return P; } M operator+() const { return *this; } M operator-() const { return {v ? P - v : 0, 0}; } explicit operator bool() const noexcept { return v; } bool operator!() const noexcept { return !(bool)*this; } M operator*(M r) const { return M(*this) *= r; } M operator/(M r) const { return M(*this) /= r; } M operator+(M r) const { return M(*this) += r; } M operator-(M r) const { return M(*this) -= r; } bool operator==(M r) const { return v == r.v; } bool operator!=(M r) const { return !(*this == r); } M& operator*=(M r) { v = (uint64_t)v * r.v % P; return *this; } M& operator/=(M r) { return *this *= r.inv(); } M& operator+=(M r) { if ((v += r.v) >= P) v -= P; return *this; } M& operator-=(M r) { if ((v += P - r.v) >= P) v -= P; return *this; } M inv() const { int a = v, b = P, x = 1, u = 0; while (b) { int q = a / b; swap(a -= q * b, b); swap(x -= q * u, u); } assert(a == 1); return x; } M pow(auto n) const { if (n < 0) return pow(-n).inv(); M res = 1; for (M a = *this; n; a *= a, n >>= 1) if (n & 1) res *= a; return res; } friend M operator*(auto l, M r) { return M(l) *= r; } friend M operator/(auto l, M r) { return M(l) /= r; } friend M operator+(auto l, M r) { return M(l) += r; } friend M operator-(auto l, M r) { return M(l) -= r; } friend ostream& operator<<(ostream& os, M r) { return os << r.v; } friend istream& operator>>(istream& is, M& r) { lint x; is >> x; r = x; return is; } friend bool operator==(auto l, M r) { return M(l) == r; } friend bool operator!=(auto l, M r) { return !(l == r); } }; using Mint = ModInt<(unsigned)1e9 + 7>; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); lint h, w; cin >> h >> w; V<Mint> dp(min(h, w)); for (lint d = min(h, w) - 1; d; --d) { lint x = (w - 1) / d, y = (h - 1) / d; dp[d] = Mint(w * x - d * x * (x + 1) / 2) * Mint(h * y - d * y * (y + 1) / 2); for (int m = 2 * d; m < min(h, w); m += d) { dp[d] -= dp[m]; } } Mint res = h * (w - 1) + w * (h - 1); if (1 < min(h, w)) res += 2 * dp[1]; cout << res << '\n'; }