結果
問題 | No.1238 選抜クラス |
ユーザー | rokahikou1 |
提出日時 | 2020-10-03 13:24:11 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 18 ms / 2,000 ms |
コード長 | 3,432 bytes |
コンパイル時間 | 1,551 ms |
コンパイル使用メモリ | 173,720 KB |
実行使用メモリ | 19,712 KB |
最終ジャッジ日時 | 2024-07-18 04:21:24 |
合計ジャッジ時間 | 3,055 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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
6,812 KB |
testcase_01 | AC | 3 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
6,944 KB |
testcase_05 | AC | 1 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 3 ms
6,944 KB |
testcase_08 | AC | 3 ms
6,940 KB |
testcase_09 | AC | 4 ms
6,940 KB |
testcase_10 | AC | 3 ms
6,944 KB |
testcase_11 | AC | 4 ms
6,940 KB |
testcase_12 | AC | 3 ms
6,944 KB |
testcase_13 | AC | 4 ms
6,944 KB |
testcase_14 | AC | 3 ms
6,940 KB |
testcase_15 | AC | 4 ms
6,944 KB |
testcase_16 | AC | 3 ms
6,940 KB |
testcase_17 | AC | 17 ms
19,584 KB |
testcase_18 | AC | 16 ms
19,072 KB |
testcase_19 | AC | 16 ms
19,328 KB |
testcase_20 | AC | 15 ms
18,816 KB |
testcase_21 | AC | 16 ms
18,304 KB |
testcase_22 | AC | 16 ms
19,584 KB |
testcase_23 | AC | 16 ms
19,584 KB |
testcase_24 | AC | 17 ms
19,584 KB |
testcase_25 | AC | 17 ms
19,712 KB |
testcase_26 | AC | 17 ms
19,584 KB |
testcase_27 | AC | 17 ms
19,584 KB |
testcase_28 | AC | 18 ms
19,584 KB |
testcase_29 | AC | 16 ms
19,200 KB |
testcase_30 | AC | 6 ms
8,320 KB |
testcase_31 | AC | 10 ms
12,416 KB |
testcase_32 | AC | 13 ms
15,872 KB |
testcase_33 | AC | 2 ms
6,940 KB |
testcase_34 | AC | 14 ms
17,152 KB |
testcase_35 | AC | 8 ms
9,728 KB |
testcase_36 | AC | 5 ms
6,944 KB |
testcase_37 | AC | 6 ms
8,704 KB |
testcase_38 | AC | 16 ms
18,688 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for(int(i) = 0; (i) < (n); (i)++) #define FOR(i, m, n) for(int(i) = (m); (i) < (n); (i)++) #define All(v) (v).begin(), (v).end() #define pb push_back #define MP(a, b) make_pair((a), (b)) template <class T> vector<T> make_vec(size_t a, T val) { return vector<T>(a, val); } template <class... Ts> auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec(ts...))>(a, make_vec(ts...)); } using ll = long long; using pii = pair<int, int>; using pll = pair<ll, ll>; using Graph = vector<vector<int>>; template <typename T> struct edge { int to; T cost; edge(int t, T c) : to(t), cost(c) {} }; template <typename T> using WGraph = vector<vector<edge<T>>>; const int INF = 1 << 30; const ll LINF = 1LL << 60; const int MOD = 1e9 + 7; template <uint_fast64_t MOD> class ModInt { using u64 = uint_fast64_t; public: u64 val; ModInt(const u64 x = 0) : val((x + MOD) % MOD) {} constexpr u64 &value() { return val; } constexpr ModInt operator-() { return val ? MOD - val : 0; } constexpr ModInt operator+(const ModInt &rhs) const { return ModInt(*this) += rhs; } constexpr ModInt operator-(const ModInt &rhs) const { return ModInt(*this) -= rhs; } constexpr ModInt operator*(const ModInt &rhs) const { return ModInt(*this) *= rhs; } constexpr ModInt operator/(const ModInt &rhs) const { return ModInt(*this) /= rhs; } constexpr ModInt &operator+=(const ModInt &rhs) { val += rhs.val; if(val >= MOD) { val -= MOD; } return *this; } constexpr ModInt &operator-=(const ModInt &rhs) { if(val < rhs.val) { val += MOD; } val -= rhs.val; return *this; } constexpr ModInt &operator*=(const ModInt &rhs) { val = val * rhs.val % MOD; return *this; } constexpr ModInt &operator/=(const ModInt &rhs) { *this *= rhs.inv(); return *this; } constexpr bool operator==(const ModInt &rhs) { return this->val == rhs.val; } constexpr bool operator!=(const ModInt &rhs) { return this->val != rhs.val; } friend constexpr ostream &operator<<(ostream &os, const ModInt<MOD> &x) { return os << x.val; } friend constexpr istream &operator>>(istream &is, ModInt<MOD> &x) { return is >> x.val; } constexpr ModInt inv() const { return ModInt(*this).pow(MOD - 2); } constexpr ModInt pow(ll e) const { u64 x = 1, p = val; while(e > 0) { if(e % 2 == 0) { p = (p * p) % MOD; e /= 2; } else { x = (x * p) % MOD; e--; } } return ModInt(x); } }; using mint = ModInt<MOD>; int main() { int N, K; cin >> N >> K; vector<int> A(N); rep(i, N) cin >> A[i]; rep(i, N) A[i] -= K; auto dp = make_vec(N + 1, 20001, mint(0)); dp[0][10000] = mint(1); for(int i = 0; i < N; i++) { for(int j = 0; j < 20001; j++) { dp[i + 1][j] += dp[i][j]; if(j + A[i] >= 0 && j + A[i] < 20001) { dp[i + 1][j + A[i]] += dp[i][j]; } } } mint res = 0; for(int i = 10000; i <= 20000; i++) { res += dp[N][i]; } cout << res - 1 << endl; }