結果
問題 | No.1693 Invasion |
ユーザー | torisasami4 |
提出日時 | 2021-10-01 22:01:46 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 43 ms / 2,000 ms |
コード長 | 7,562 bytes |
コンパイル時間 | 2,679 ms |
コンパイル使用メモリ | 229,524 KB |
実行使用メモリ | 19,300 KB |
最終ジャッジ日時 | 2024-07-19 11:17:09 |
合計ジャッジ時間 | 4,282 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 28 ms
18,816 KB |
testcase_01 | AC | 29 ms
18,816 KB |
testcase_02 | AC | 28 ms
18,816 KB |
testcase_03 | AC | 29 ms
18,816 KB |
testcase_04 | AC | 29 ms
18,688 KB |
testcase_05 | AC | 28 ms
18,816 KB |
testcase_06 | AC | 30 ms
18,816 KB |
testcase_07 | AC | 30 ms
18,904 KB |
testcase_08 | AC | 29 ms
18,816 KB |
testcase_09 | AC | 37 ms
19,172 KB |
testcase_10 | AC | 33 ms
19,136 KB |
testcase_11 | AC | 32 ms
18,968 KB |
testcase_12 | AC | 35 ms
19,300 KB |
testcase_13 | AC | 32 ms
18,944 KB |
testcase_14 | AC | 32 ms
19,060 KB |
testcase_15 | AC | 30 ms
18,944 KB |
testcase_16 | AC | 34 ms
19,072 KB |
testcase_17 | AC | 29 ms
18,816 KB |
testcase_18 | AC | 40 ms
19,180 KB |
testcase_19 | AC | 30 ms
19,272 KB |
testcase_20 | AC | 30 ms
18,816 KB |
testcase_21 | AC | 42 ms
19,200 KB |
testcase_22 | AC | 41 ms
19,200 KB |
testcase_23 | AC | 43 ms
19,200 KB |
ソースコード
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math") #include <bits/stdc++.h> using namespace std; typedef long long ll; #define pb(...) emplace_back(__VA_ARGS__) #define mp(a, b) make_pair(a, b) #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define lscan(x) scanf("%I64d", &x) #define lprint(x) printf("%I64d", x) #define rep(i, n) for (ll i = 0; i < (n); i++) #define rep2(i, n) for (ll i = (ll)n - 1; i >= 0; i--) #define REP(i, l, r) for (ll i = l; i < (r); i++) #define REP2(i, l, r) for (ll i = (ll)r - 1; i >= (l); i--) #define siz(x) (ll) x.size() template <class T> using rque = priority_queue<T, vector<T>, greater<T>>; template <class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } template <class T> bool chmax(T &a, const T &b) { if (b > a) { a = b; return 1; } return 0; } ll gcd(ll a, ll b) { if (a == 0) return b; if (b == 0) return a; ll cnt = a % b; while (cnt != 0) { a = b; b = cnt; cnt = a % b; } return b; } long long extGCD(long long a, long long b, long long &x, long long &y) { if (b == 0) { x = 1; y = 0; return a; } long long d = extGCD(b, a % b, y, x); y -= a / b * x; return d; } struct UnionFind { vector<ll> data; int num; UnionFind(int sz) { data.assign(sz, -1); num = sz; } bool unite(int x, int y) { x = find(x), y = find(y); if (x == y) return (false); if (data[x] > data[y]) swap(x, y); data[x] += data[y]; data[y] = x; num--; return (true); } int find(int k) { if (data[k] < 0) return (k); return (data[k] = find(data[k])); } ll size(int k) { return (-data[find(k)]); } bool same(int x, int y) { return find(x) == find(y); } }; template <int mod> struct ModInt { int x; ModInt() : x(0) { } ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) { } ModInt &operator+=(const ModInt &p) { if ((x += p.x) >= mod) x -= mod; return *this; } ModInt &operator-=(const ModInt &p) { if ((x += mod - p.x) >= mod) x -= mod; return *this; } ModInt &operator*=(const ModInt &p) { x = (int)(1LL * x * p.x % mod); return *this; } ModInt &operator/=(const ModInt &p) { *this *= p.inverse(); return *this; } ModInt operator-() const { return ModInt(-x); } ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; } ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; } ModInt &operator++() { return *this += ModInt(1); } ModInt operator++(int) { ModInt tmp = *this; ++*this; return tmp; } ModInt &operator--() { return *this -= ModInt(1); } ModInt operator--(int) { ModInt tmp = *this; --*this; return tmp; } ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; } ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; } bool operator==(const ModInt &p) const { return x == p.x; } bool operator!=(const ModInt &p) const { return x != p.x; } ModInt inverse() const { int a = x, b = mod, u = 1, v = 0, t; while (b > 0) { t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return ModInt(u); } ModInt pow(int64_t n) const { ModInt ret(1), mul(x); while (n > 0) { if (n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend ostream &operator<<(ostream &os, const ModInt &p) { return os << p.x; } friend istream &operator>>(istream &is, ModInt &a) { int64_t t; is >> t; a = ModInt<mod>(t); return (is); } static int get_mod() { return mod; } }; ll mpow2(ll x, ll n, ll mod) { ll ans = 1; while (n != 0) { if (n & 1) ans = ans * x % mod; x = x * x % mod; n = n >> 1; } return ans; } ll modinv2(ll a, ll mod) { ll b = mod, u = 1, v = 0; while (b) { ll t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= mod; if (u < 0) u += mod; return u; } // constexpr int mod = 1000000007; constexpr int mod = 998244353; // constexpr int mod = 31607; using mint = ModInt<mod>; mint mpow(mint x, ll n) { mint ans = 1; while (n != 0) { if (n & 1) ans *= x; x *= x; n = n >> 1; } return ans; } // ----- library ------- template <typename T> struct Combination { vector<T> _fac, _ifac; Combination() { init(); } Combination(int n) { init(n); } void init(int n = 2000010) { _fac.resize(n + 1), _ifac.resize(n + 1); _fac[0] = 1; for (int i = 1; i <= n; i++) _fac[i] = _fac[i - 1] * i; _ifac[n] = _fac[n].inverse(); for (int i = n; i >= 1; i--) _ifac[i - 1] = _ifac[i] * i; } T fac(int k) { return _fac[k]; } T ifac(int k) { return _ifac[k]; } T inv(int k) { return fac(k - 1) * ifac(k); } T P(int n, int k) { if (k < 0 || n < k) return 0; return fac(n) * ifac(n - k); } T C(int n, int k) { if (k < 0 || n < k) return 0; return fac(n) * ifac(n - k) * ifac(k); } T H(int n, int k) { // k個の区別できない玉をn個の区別できる箱に入れる場合の数 if (n < 0 || k < 0) return 0; return k == 0 ? 1 : C(n + k - 1, k); } T second_stirling_number(int n, int k) { // n個の区別できる玉を、k個の区別しない箱に、各箱に1個以上玉が入るように入れる場合の数 T ret = 0; for (int i = 0; i <= k; i++) { T tmp = C(k, i) * T(i).pow(n); ret += ((k - i) & 1) ? -tmp : tmp; } return ret * ifac(k); } T bell_number(int n, int k) { // n個の区別できる玉を、k個の区別しない箱に入れる場合の数 if (n == 0) return 1; k = min(k, n); vector<T> pref(k + 1); pref[0] = 1; for (int i = 1; i <= k; i++) { if (i & 1) pref[i] = pref[i - 1] - ifac(i); else pref[i] = pref[i - 1] + ifac(i); } T ret = 0; for (int i = 1; i <= k; i++) ret += T(i).pow(n) * ifac(i) * pref[k - i]; return ret; } }; using comb = Combination<mint>; // ----- library ------- int main() { ios::sync_with_stdio(false); std::cin.tie(nullptr); cout << fixed << setprecision(15); int n, m; cin >> n >> m; vector<int> a(n); rep(i, n) cin >> a[i]; vector<int> dp(m + 1, 1e9); dp[0] = 0; rep(i, m) rep(j, n) if (i + a[j] <= m) chmin(dp[i + a[j]], dp[i] + 1); mint ans = 0; comb comb; rep(i, m + 1) if (dp[i] <= 1e8) ans += comb.C(m - dp[i], i - dp[i]); cout << ans << endl; }