結果
問題 | No.681 Fractal Gravity Glue |
ユーザー | paruki |
提出日時 | 2018-04-28 15:36:08 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,952 bytes |
コンパイル時間 | 2,000 ms |
コンパイル使用メモリ | 175,204 KB |
実行使用メモリ | 10,752 KB |
最終ジャッジ日時 | 2024-06-27 23:21:21 |
合計ジャッジ時間 | 5,604 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
(要ログイン)
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
10,752 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 | 3 ms
5,376 KB |
testcase_05 | AC | 3 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 3 ms
5,376 KB |
testcase_08 | TLE | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
ソースコード
#define _USE_MATH_DEFINES #include "bits/stdc++.h" using namespace std; #define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i)) #define rep(i,j) FOR(i,0,j) #define each(x,y) for(auto &(x):(y)) #define mp make_pair #define MT make_tuple #define all(x) (x).begin(),(x).end() #define debug(x) cout<<#x<<": "<<(x)<<endl #define smax(x,y) (x)=max((x),(y)) #define smin(x,y) (x)=min((x),(y)) #define MEM(x,y) memset((x),(y),sizeof (x)) #define sz(x) (int)(x).size() #define RT return #define vv(a,b,c,d) vector<vector<a> >(b,vector<a>(c,d)) #define vvv(a,b,c,d,e) vector<vector<vector<a> > >(b,vv(a,c,d,e)) using ll = long long; using pii = pair<int, int>; using vi = vector<int>; using vll = vector<ll>; const int MOD = (int)1e9 + 7; vector<vector<int> > mulMatMod(const vector<vector<int> > &A, const vector<vector<int> > &B) { auto n = A.size(), m = A[0].size(), p = B[0].size(); vector<vector<int> > res(n, vector<int>(p)); for (int i = 0; i < n; ++i)for (int j = 0; j < p; ++j) for (int k = 0; k < m; ++k) res[i][j] = (int)((res[i][j] + (long long)A[i][k] * B[k][j]) % MOD); return res; } vector<vector<int> > powMatMod(vector<vector<int> > A, long long k) { auto n = A.size(); vector<vector<int> > res(n, vector<int>(n)); for (int i = 0; i < n; ++i)res[i][i] = 1; while (k) { if (k % 2)res = mulMatMod(res, A); k /= 2; A = mulMatMod(A, A); } return res; } template<int MOD> class ModInt { public: ModInt() :value(0) {} ModInt(long long val) :value((int)(val<0 ? MOD + val%MOD : val%MOD)) { } ModInt& operator+=(ModInt that) { value = value + that.value; if (value >= MOD)value -= MOD; return *this; } ModInt& operator-=(ModInt that) { value -= that.value; if (value<0)value += MOD; return *this; } ModInt& operator*=(ModInt that) { value = (int)((long long)value * that.value % MOD); return *this; } ModInt &operator/=(ModInt that) { return *this *= that.inverse(); } ModInt operator+(ModInt that) const { return ModInt(*this) += that; } ModInt operator-(ModInt that) const { return ModInt(*this) -= that; } ModInt operator*(ModInt that) const { return ModInt(*this) *= that; } ModInt operator/(ModInt that) const { return ModInt(*this) /= that; } ModInt pow(long long k) const { if (value == 0)return 0; ModInt n = *this, res = 1; while (k) { if (k & 1)res *= n; n *= n; k >>= 1; } return res; } ModInt inverse() const { long long a = value, b = MOD, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } return ModInt(u); } int toi() const { return value; } private: int value; }; typedef ModInt<1000000007> mint; ostream& operator<<(ostream& os, const mint& x) { os << x.toi(); return os; } mint g(int b, int d) { vector<vi> A(3, vi(3)); A[0][0] = d + 1; A[0][1] = d; A[1][1] = A[1][2] = A[2][2] = 1; A = powMatMod(A, b); RT mint(A[0][1]) + mint(A[0][2]); } ll num(int b, int d) { if (pow(d + 1.0, b) - 1 > (int)2e9)RT(int)1e9 + 1; RT pow<ll>(d+1, b) - 1; } mint f(int b, int d, int n) { if (n == 0)RT 0; ll m = num(b - 1, d); if (n <= m)RT f(b - 1, d, n); mint gg = g(b - 1, d); n -= (int)m; mint re = (gg + b)*(n / (m + 1)) + gg; n %= (m + 1); if (n > 0) { re += b; n--; } if (n > 0)re += f(b - 1, d, n); RT re; } int main() { ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(20); int N, B, D; while (cin >> N >> B >> D) { mint re = g(B, D); re -= f(B, D, N); cout << re << endl; } }