結果
問題 | No.1688 Veterinarian |
ユーザー | theory_and_me |
提出日時 | 2021-09-24 22:16:56 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 271 ms / 3,000 ms |
コード長 | 3,391 bytes |
コンパイル時間 | 2,191 ms |
コンパイル使用メモリ | 223,776 KB |
実行使用メモリ | 69,848 KB |
最終ジャッジ日時 | 2024-07-05 10:47:30 |
合計ジャッジ時間 | 3,329 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 |
---|---|---|
testcase_00 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 4 ms
6,944 KB |
testcase_07 | AC | 12 ms
6,944 KB |
testcase_08 | AC | 271 ms
69,848 KB |
testcase_09 | AC | 252 ms
64,668 KB |
testcase_10 | AC | 24 ms
9,216 KB |
testcase_11 | AC | 18 ms
9,984 KB |
testcase_12 | AC | 3 ms
6,944 KB |
testcase_13 | AC | 5 ms
6,944 KB |
testcase_14 | AC | 4 ms
6,940 KB |
testcase_15 | AC | 23 ms
7,080 KB |
testcase_16 | AC | 2 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; #define REP(i,n) for(ll i=0;i<(ll)n;i++) #define dump(x) cerr << "Line " << __LINE__ << ": " << #x << " = " << (x) << "\n"; #define spa << " " << #define fi first #define se second #define ALL(a) (a).begin(),(a).end() #define ALLR(a) (a).rbegin(),(a).rend() using ld = long double; using ll = long long; using ull = unsigned long long; using pii = pair<int, int>; using pll = pair<ll, ll>; using pdd = pair<ld, ld>; template<typename T> using V = vector<T>; template<typename T> using P = pair<T, T>; template<typename T> vector<T> make_vec(size_t n, T a) { return vector<T>(n, a); } template<typename... Ts> auto make_vec(size_t n, Ts... ts) { return vector<decltype(make_vec(ts...))>(n, make_vec(ts...)); } template<class S, class T> ostream& operator << (ostream& os, const pair<S, T> v){os << "(" << v.first << ", " << v.second << ")"; return os;} template<typename T> ostream& operator<<(ostream &os, const vector<T> &v) { for (auto &e : v) os << e << ' '; return os; } template<class T> ostream& operator<<(ostream& os, const vector<vector<T>> &v){ for(auto &e : v){os << e << "\n";} return os;} struct fast_ios { fast_ios(){ cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; template <class T> void UNIQUE(vector<T> &x) {sort(ALL(x));x.erase(unique(ALL(x)), x.end());} template<class T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<class T> bool chmin(T &a, const T &b) { if (a>b) { a=b; return 1; } return 0; } void fail() { cout << -1 << '\n'; exit(0); } inline int popcount(const int x) { return __builtin_popcount(x); } inline int popcount(const ll x) { return __builtin_popcountll(x); } template<typename T> void debug(vector<vector<T>>&v,ll h,ll w){for(ll i=0;i<h;i++) {cerr<<v[i][0];for(ll j=1;j<w;j++)cerr spa v[i][j];cerr<<"\n";}}; template<typename T> void debug(vector<T>&v,ll n){if(n!=0)cerr<<v[0]; for(ll i=1;i<n;i++)cerr spa v[i]; cerr<<"\n";}; const ll INF = (1ll<<62); // const ld EPS = 1e-10; // const ld PI = acos(-1.0); const ll mod = (int)1e9 + 7; //const ll mod = 998244353; int main(){ ll A, B, C, N; cin >> A >> B >> C >> N; V<double> res; REP(idx, 3){ auto dp = make_vec(N+1, A+1, B+1, C+1, (double)0); auto check = make_vec(N+1, A+1, B+1, C+1, false); auto rec = [&](auto self, ll n, ll a, ll b, ll c) -> float{ if(check[n][a][b][c]) return dp[n][a][b][c]; if(n == 0) return 0; ll S = a + b + c; double res = 0; double pa = (double)a*(a-1)/(S*(S-1)); double pb = (double)b*(b-1)/(S*(S-1)); double pc = (double)c*(c-1)/(S*(S-1)); double ga = 0, gb = 0, gc = 0; if(idx == 0) ga = 1.0; if(idx == 1) gb = 1.0; if(idx == 2) gc = 1.0; if(a > 1) res += pa * (self(self, n-1, a-1, b, c) + ga); if(b > 1) res += pb * (self(self, n-1, a, b-1, c) + gb); if(c > 1) res += pc * (self(self, n-1, a, b, c-1) + gc); res += (1.0 - pa - pb - pc) * self(self, n-1, a, b, c); dp[n][a][b][c] = res; check[n][a][b][c] = true; return res; }; res.push_back(rec(rec, N, A, B, C)); } REP(i, 3) cout << res[i] << " "; cout << endl; return 0; }