結果
問題 | No.1181 Product Sum for All Subsets |
ユーザー | opt |
提出日時 | 2020-08-21 21:28:39 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,038 bytes |
コンパイル時間 | 1,901 ms |
コンパイル使用メモリ | 201,116 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-15 05:10:10 |
合計ジャッジ時間 | 2,797 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 2 ms
5,248 KB |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | AC | 2 ms
5,248 KB |
testcase_28 | WA | - |
testcase_29 | AC | 2 ms
5,248 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; #define rep2(i, m, n) for (int i = (m); i < (n); ++i) #define rep(i, n) rep2(i, 0, n) #define drep2(i, m, n) for (int i = (m)-1; i >= (n); --i) #define drep(i, n) drep2(i, n, 0) #define all(a) (a).begin(), (a).end() template<typename T = int> using V = vector<T>; template<typename T = int> using P = pair<T, T>; using Vi = V<int>; using Vl = V<ll>; using Vd = V<ld>; using VVi = V<Vi>; using VVl = V<Vl>; using VVd = V<Vd>; using Pi = P<int>; using Pl = P<ll>; using Pd = P<ld>; template<typename T> vector<T> make_vec(size_t n, T a) { return vector<T>(n, a); } template<typename... Ts> auto make_vec(size_t n, Ts... ts) { return vector<decltype(make_vec(ts...))>(n, make_vec(ts...)); } template<typename T> inline int sz(T &x) { return x.size(); } template<typename T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template<typename T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } template<typename T1, typename T2> istream &operator>>(istream &is, pair<T1, T2> &p) { is >> p.first >> p.second; return is; } template<typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p) { os << '(' << p.first << ", " << p.second << ')'; return os; } template<typename T> istream &operator>>(istream &is, vector<T> &v) { for (auto &e : v) is >> e; return is; } template<typename T> ostream &operator<<(ostream &os, const vector<T> &v) { for (auto &e : v) os << e << ' '; return os; } template<typename T> inline int count_between(vector<T> &a, T l, T r) { return lower_bound(all(a), r) - lower_bound(all(a), l); } // [l, r) inline int fLog2(const ll x) { assert(x > 0); return 63-__builtin_clzll(x); } // floor(log2(x)) inline int cLog2(const ll x) { assert(x > 0); return (x == 1) ? 0 : 64-__builtin_clzll(x-1); } // ceil(log2(x)) inline int popcount(const ll x) { return __builtin_popcountll(x); } inline void fail() { cout << -1 << '\n'; exit(0); } struct fast_ios { fast_ios(){ cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; // const int INF = 1<<30; // const ll INFll = 1ll<<60; // const ld EPS = 1e-10; // const ld PI = acos(-1.0); const int MOD = int(1e9)+7; // const int MOD = 998244353; template<int MOD> struct ModInt { int x; ModInt(int _x = 0) : x( (0 <= _x && _x < MOD) ? _x : (_x%MOD+MOD)%MOD ) {} constexpr int &value() noexcept { return x; } constexpr ModInt operator-() const noexcept { return ModInt(MOD-x); } constexpr ModInt operator+(const ModInt y) const noexcept { return ModInt(*this) += y; } constexpr ModInt operator-(const ModInt y) const noexcept { return ModInt(*this) -= y; } constexpr ModInt operator*(const ModInt y) const noexcept { return ModInt(*this) *= y; } constexpr ModInt operator/(const ModInt y) const noexcept { return ModInt(*this) /= y; } constexpr ModInt &operator+=(const ModInt y) noexcept { x += y.x; if (x >= MOD) x -= MOD; return *this; } constexpr ModInt &operator-=(const ModInt y) noexcept { x -= y.x; if (x < 0) x += MOD; return *this; } constexpr ModInt &operator*=(const ModInt y) noexcept { x = ll(x) * y.x % MOD; return *this; } constexpr ModInt &operator/=(const ModInt y) { int a = y.x, b = MOD, u = 1, v = 0; while (b) { int t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } x = ll(x) * u % MOD; if (x < 0) x += MOD; return *this; } }; using mint = ModInt<MOD>; // using Vm = vector<mint>; // using VVm = vector<Vm>; // using VVVm = vector<VVm>; istream &operator>>(istream &is, mint &a) { return is >> a.x; } ostream &operator<<(ostream &os, const mint &a) { return os << a.x; } mint pow(mint a, ll n) { mint x(1); for (; n > 0; n /= 2, a *= a) if (n%2) x *= a; return x; } int main() { ll n; mint k; cin >> n >> k; mint a = (k+1) * (k+2) / 2 - 1; mint b = k * (k+1) / 2; mint ans = pow(a, n) - pow(b, n); cout << ans << '\n'; }