結果
問題 | No.1084 積の積 |
ユーザー | mai |
提出日時 | 2020-06-19 23:39:06 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 7,252 bytes |
コンパイル時間 | 2,972 ms |
コンパイル使用メモリ | 236,588 KB |
実行使用メモリ | 13,884 KB |
最終ジャッジ日時 | 2024-07-03 16:01:19 |
合計ジャッジ時間 | 6,671 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 |
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testcase_00 | WA | - |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | TLE | - |
testcase_05 | -- | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
ソースコード
#pragma GCC optimize ("O3") #include "bits/stdc++.h" using namespace std; using ll = long long int; #define all(v) (v).begin(),(v).end() #define repeat(cnt,l) for(typename remove_const<typename remove_reference<decltype(l)>::type>::type cnt={};(cnt)<(l);++(cnt)) #define rrepeat(cnt,l) for(auto cnt=(l)-1;0<=(cnt);--(cnt)) #define iterate(cnt,b,e) for(auto cnt=(b);(cnt)!=(e);++(cnt)) #define diterate(cnt,b,e) for(auto cnt=(b);(cnt)!=(e);--(cnt)) const long long MD = 1000000007ll; const long double PI = 3.1415926535897932384626433832795L; template<typename T1, typename T2> inline ostream& operator <<(ostream &o, const pair<T1, T2> p) { o << '(' << p.first << ':' << p.second << ')'; return o; } template<typename T> inline T& chmax(T& to, const T& val) { return to = max(to, val); } template<typename T> inline T& chmin(T& to, const T& val) { return to = min(to, val); } void bye(string s, int code = 0) { cout << s << endl; exit(code); } mt19937_64 randdev(8901016); template<typename T, typename Random = decltype(randdev), typename enable_if<is_integral<T>::value>::type* = nullptr> inline T rand(T l, T h, Random& rand = randdev) { return uniform_int_distribution<T>(l, h)(rand); } template<typename T, typename Random = decltype(randdev), typename enable_if<is_floating_point<T>::value>::type* = nullptr> inline T rand(T l, T h, Random& rand = randdev) { return uniform_real_distribution<T>(l, h)(rand); } template <typename I> struct MyRangeFormat{ I b,e; MyRangeFormat(I _b, I _e):b(_b),e(_e){} }; template<typename I> static ostream& operator<<(ostream& o, const MyRangeFormat<I>& f) { o << "[ "; iterate(i,f.b,f.e) o<<*i<<' '; return o << ']'; } template <typename I> struct MyMatrixFormat{ const I& p; long long n, m; MyMatrixFormat(const I& _p, long long _n, long long _m):p(_p),n(_n),m(_m){} }; template<typename I> static ostream& operator<<(ostream& o, const MyMatrixFormat<I>& f) { o<<'\n'; repeat(i,(f.n)) { repeat(j,f.m) o<<f.p[i][j]<<' '; o<<'\n'; } return o; } struct LOG_t { ~LOG_t() { cout << endl; } }; #define LOG (LOG_t(),cout<<'L'<<__LINE__<<": ") #define FMTA(m,w) (MyRangeFormat<decltype(m+0)>(m,m+w)) #define FMTR(b,e) (MyRangeFormat<decltype(e)>(b,e)) #define FMTV(v) FMTR(v.begin(),v.end()) #define FMTM(m,h,w) (MyMatrixFormat<decltype(m+0)>(m,h,w)) #if defined(_WIN32) || defined(_WIN64) #define getc_x _getc_nolock #define putc_x _putc_nolock #elif defined(__GNUC__) #define getc_x getc_unlocked #define putc_x putc_unlocked #else #define getc_x getc #define putc_x putc #endif class MaiScanner { FILE* fp_; constexpr bool isvisiblechar(char c) noexcept { return (0x21<=(c)&&(c)<=0x7E); } public: inline MaiScanner(FILE* fp):fp_(fp){} template<typename T> void input_integer(T& var) noexcept { var = 0; T sign = 1; int cc = getc_x(fp_); for (; cc < '0' || '9' < cc; cc = getc_x(fp_)) if (cc == '-') sign = -1; for (; '0' <= cc && cc <= '9'; cc = getc_x(fp_)) var = (var << 3) + (var << 1) + cc - '0'; var = var * sign; } inline int c() noexcept { return getc_x(fp_); } template<typename T, typename enable_if<is_integral<T>::value, nullptr_t>::type = nullptr> inline MaiScanner& operator>>(T& var) noexcept { input_integer<T>(var); return *this; } inline MaiScanner& operator>>(string& var) { int cc = getc_x(fp_); for (; !isvisiblechar(cc); cc = getc_x(fp_)); for (; isvisiblechar(cc); cc = getc_x(fp_)) var.push_back(cc); return *this; } template<typename IT> inline void in(IT begin, IT end) { for (auto it = begin; it != end; ++it) *this >> *it; } }; class MaiPrinter { FILE* fp_; public: inline MaiPrinter(FILE* fp):fp_(fp){} template<typename T> void output_integer(T var) noexcept { if (var == 0) { putc_x('0', fp_); return; } if (var < 0) putc_x('-', fp_), var = -var; char stack[32]; int stack_p = 0; while (var) stack[stack_p++] = '0' + (var % 10), var /= 10; while (stack_p) putc_x(stack[--stack_p], fp_); } inline MaiPrinter& operator<<(char c) noexcept { putc_x(c, fp_); return *this; } template<typename T, typename enable_if<is_integral<T>::value, nullptr_t>::type = nullptr> inline MaiPrinter& operator<<(T var) noexcept { output_integer<T>(var); return *this; } inline MaiPrinter& operator<<(char* str_p) noexcept { while (*str_p) putc_x(*(str_p++), fp_); return *this; } inline MaiPrinter& operator<<(const string& str) { const char* p = str.c_str(); const char* l = p + str.size(); while (p < l) putc_x(*p++, fp_); return *this; } template<typename IT> void join(IT begin, IT end, char sep = ' ') { for (bool b = 0; begin != end; ++begin, b = 1) b ? *this << sep << *begin : *this << *begin; } }; MaiScanner scanner(stdin); MaiPrinter printer(stdout); template <int MaxN, long long Mod> class Combinatorics { using value_type = long long; value_type fact_[MaxN + 1]; // value_type inv_[MaxN + 1]; // iranai public: constexpr value_type pow(value_type x, value_type p) const { value_type y = 1; x = x % Mod; for (; 0 < p; p >>= 1) { if (p & 1) y = y * x % Mod; x = x * x % Mod; } return y; } constexpr Combinatorics() : fact_() { fact_[0] = 1; fact_[1] = 1; for (value_type n = 2; n <= MaxN; ++n) fact_[n] = (fact_[n - 1] * n) % Mod; // inv_[Max] := calculate; // iterate => inv_[i] = inv_[i+1] * (i+1) % MD; } constexpr value_type fact(int n) const { return fact_[n]; } constexpr value_type inv(value_type n) const { return pow(n, MD - 2); } constexpr value_type nPr(value_type n, value_type r) const { if (r < 0 || n < r) return 0; return fact_[n] * inv(fact_[n - r]) % MD; } constexpr value_type nCr(value_type n, value_type r) const { if (n < r) return 0; return ((fact_[n] * inv(fact_[n - r]) % MD) * inv(fact_[r])) % MD; } constexpr value_type nHr(value_type n, value_type r) const { if (n == 0 && r == 0) return 1; if (n == 0) return 0; return nCr(n - 1 + r, n - 1); } }; Combinatorics<100010, MD> wakame; // int Nr; int R[100010]; // int N; int A[100010]; int C[100010]; const ll e9 = 1e9; int main() { scanner >> Nr; scanner.in(R, R+Nr); // zip { int l = -1; int p = 0; repeat(i, Nr) { const int r = R[i]; if (r == 0) { if (l == 0) { // ++C[p-1]; } else { A[p] = r; // C[p] = 1; ++p; } } else if (r == 1) { if (l == 1) { ++C[p-1]; } else { A[p] = r; C[p] = 1; ++p; } } else { A[p] = r; C[p] = 1; ++p; } l = A[i]; } N = p; } ll res = 1; repeat(i, N) { if (A[i] <= 0) continue; // int l = 0, r = 0; ll m = C[i]; ll s = 1; for (int j = i; j >= 0 && A[j] > 0 ;--j) { s *= A[j]; if (s >= e9) break; ll t = s; for (int k = i+1; k < N && A[k] > 0 ;++k) { t *= A[k]; if (t >= e9) break; m += C[j]*C[k]; } } // LOG << m; res *= wakame.pow(A[i], m); res %= MD; } cout << res << endl; return 0; }