結果
問題 | No.1238 選抜クラス |
ユーザー | yosupot |
提出日時 | 2020-09-25 22:56:07 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 104 ms / 2,000 ms |
コード長 | 7,185 bytes |
コンパイル時間 | 1,642 ms |
コンパイル使用メモリ | 124,564 KB |
実行使用メモリ | 7,040 KB |
最終ジャッジ日時 | 2024-06-28 07:12:43 |
合計ジャッジ時間 | 4,098 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 4 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 3 ms
6,940 KB |
testcase_08 | AC | 3 ms
6,940 KB |
testcase_09 | AC | 4 ms
6,944 KB |
testcase_10 | AC | 3 ms
6,940 KB |
testcase_11 | AC | 4 ms
6,944 KB |
testcase_12 | AC | 3 ms
6,940 KB |
testcase_13 | AC | 4 ms
6,940 KB |
testcase_14 | AC | 3 ms
6,944 KB |
testcase_15 | AC | 5 ms
6,944 KB |
testcase_16 | AC | 4 ms
6,940 KB |
testcase_17 | AC | 104 ms
7,040 KB |
testcase_18 | AC | 99 ms
6,940 KB |
testcase_19 | AC | 100 ms
6,940 KB |
testcase_20 | AC | 94 ms
6,944 KB |
testcase_21 | AC | 88 ms
6,944 KB |
testcase_22 | AC | 104 ms
7,040 KB |
testcase_23 | AC | 103 ms
7,040 KB |
testcase_24 | AC | 104 ms
7,040 KB |
testcase_25 | AC | 103 ms
7,040 KB |
testcase_26 | AC | 104 ms
7,040 KB |
testcase_27 | AC | 103 ms
7,040 KB |
testcase_28 | AC | 103 ms
6,940 KB |
testcase_29 | AC | 99 ms
7,040 KB |
testcase_30 | AC | 12 ms
6,940 KB |
testcase_31 | AC | 34 ms
6,940 KB |
testcase_32 | AC | 63 ms
6,940 KB |
testcase_33 | AC | 3 ms
6,944 KB |
testcase_34 | AC | 76 ms
6,944 KB |
testcase_35 | AC | 17 ms
6,940 KB |
testcase_36 | AC | 6 ms
6,940 KB |
testcase_37 | AC | 13 ms
6,940 KB |
testcase_38 | AC | 93 ms
6,940 KB |
ソースコード
//#pragma GCC optimize("Ofast") //#pragma GCC target("avx") //#undef LOCAL #include <algorithm> #include <array> #include <bitset> #include <cassert> #include <complex> #include <cstdio> #include <cstring> #include <iostream> #include <map> #include <numeric> #include <queue> #include <set> #include <string> #include <unordered_map> #include <unordered_set> #include <vector> using namespace std; using uint = unsigned int; using ll = long long; using ull = unsigned long long; constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); } template <class T> using V = vector<T>; template <class T> using VV = V<V<T>>; #include <unistd.h> struct Scanner { int fd = -1; char line[(1 << 15) + 1]; size_t st = 0, ed = 0; void reread() { memmove(line, line + st, ed - st); ed -= st; st = 0; ed += ::read(fd, line + ed, (1 << 15) - ed); line[ed] = '\0'; } bool succ() { while (true) { if (st == ed) { reread(); if (st == ed) return false; } while (st != ed && isspace(line[st])) st++; if (st != ed) break; } if (ed - st <= 50) { bool sep = false; for (size_t i = st; i < ed; i++) { if (isspace(line[i])) { sep = true; break; } } if (!sep) reread(); } return true; } template <class T, enable_if_t<is_same<T, string>::value, int> = 0> bool read_single(T& ref) { if (!succ()) return false; while (true) { size_t sz = 0; while (st + sz < ed && !isspace(line[st + sz])) sz++; ref.append(line + st, sz); st += sz; if (!sz || st != ed) break; reread(); } return true; } template <class T, enable_if_t<is_integral<T>::value>* = nullptr> bool read_single(T& ref) { if (!succ()) return false; bool neg = false; if (line[st] == '-') { neg = true; st++; } ref = T(0); while (isdigit(line[st])) { ref = 10 * ref + (line[st++] & 0xf); } if (neg) ref = -ref; return true; } template <class T> bool read_single(V<T>& ref) { for (auto& d : ref) { if (!read_single(d)) return false; } return true; } void read() {} template <class H, class... T> void read(H& h, T&... t) { bool f = read_single(h); assert(f); read(t...); } int read_unsafe() { return 0; } template <class H, class... T> int read_unsafe(H& h, T&... t) { bool f = read_single(h); if (!f) return 0; return 1 + read_unsafe(t...); } Scanner(FILE* fp) : fd(fileno(fp)) {} }; struct Printer { public: template <bool F = false> void write() {} template <bool F = false, class H, class... T> void write(const H& h, const T&... t) { if (F) write_single(' '); write_single(h); write<true>(t...); } template <class... T> void writeln(const T&... t) { write(t...); write_single('\n'); } Printer(FILE* _fp) : fp(_fp) {} ~Printer() { flush(); } private: static constexpr size_t SIZE = 1 << 15; FILE* fp; char line[SIZE], small[50]; size_t pos = 0; void flush() { fwrite(line, 1, pos, fp); pos = 0; } void write_single(const char& val) { if (pos == SIZE) flush(); line[pos++] = val; } template <class T, enable_if_t<is_integral<T>::value>* = nullptr> void write_single(T val) { if (pos > (1 << 15) - 50) flush(); if (val == 0) { write_single('0'); return; } if (val < 0) { write_single('-'); val = -val; // todo min } size_t len = 0; while (val) { small[len++] = char(0x30 | (val % 10)); val /= 10; } for (size_t i = 0; i < len; i++) { line[pos + i] = small[len - 1 - i]; } pos += len; } void write_single(__int128 val) { if (pos > (1 << 15) - 50) flush(); if (val == 0) { write_single('0'); return; } if (val < 0) { write_single('-'); val = -val; // todo min } size_t len = 0; while (val) { small[len++] = char(0x30 | (val % 10)); val /= 10; } for (size_t i = 0; i < len; i++) { line[pos + i] = small[len - 1 - i]; } pos += len; } void write_single(const string& s) { for (char c : s) write_single(c); } void write_single(const char* s) { size_t len = strlen(s); for (size_t i = 0; i < len; i++) write_single(s[i]); } template <class T> void write_single(const V<T>& val) { auto n = val.size(); for (size_t i = 0; i < n; i++) { if (i) write_single(' '); write_single(val[i]); } } }; template <uint MD> struct ModInt { using M = ModInt; static constexpr uint get_mod() { return MD; } const static M G; uint v; ModInt(ll _v = 0) { set_v(uint(_v % MD + MD)); } M& set_v(uint _v) { v = (_v < MD) ? _v : _v - MD; return *this; } explicit operator bool() const { return v != 0; } M operator-() const { return M() - *this; } M operator+(const M& r) const { return M().set_v(v + r.v); } M operator-(const M& r) const { return M().set_v(v + MD - r.v); } M operator*(const M& r) const { return M().set_v(uint(ull(v) * r.v % MD)); } M operator/(const M& r) const { return *this * r.inv(); } M& operator+=(const M& r) { return *this = *this + r; } M& operator-=(const M& r) { return *this = *this - r; } M& operator*=(const M& r) { return *this = *this * r; } M& operator/=(const M& r) { return *this = *this / r; } bool operator==(const M& r) const { return v == r.v; } M pow(ll n) const { M x = *this, r = 1; while (n) { if (n & 1) r *= x; x *= x; n >>= 1; } return r; } M inv() const { return pow(MD - 2); } friend ostream& operator<<(ostream& os, const M& r) { return os << r.v; } }; // using Mint = ModInt<998244353>; // template<> const Mint Mint::G = Mint(3); using mint = ModInt<TEN(9) + 7>; Scanner sc = Scanner(stdin); Printer pr = Printer(stdout); const int D = 10010; int main() { int n, x; sc.read(n, x); VV<mint> dp(n + 1, V<mint>(D + 1)); dp[0][0] = 1; for (int i = 0; i < n; i++) { int a; sc.read(a); for (int j = n; j >= 1; j--) { for (int k = D; k >= a; k--) { dp[j][k] += dp[j - 1][k - a]; } } } mint ans = 0; for (int i = 1; i <= n; i++) { for (int j = i * x; j <= D; j++) { ans += dp[i][j]; } } pr.writeln(ans.v); return 0; }