結果
問題 | No.1688 Veterinarian |
ユーザー | Sumitacchan |
提出日時 | 2021-09-24 21:51:27 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 141 ms / 3,000 ms |
コード長 | 3,049 bytes |
コンパイル時間 | 2,134 ms |
コンパイル使用メモリ | 202,756 KB |
実行使用メモリ | 56,596 KB |
最終ジャッジ日時 | 2024-07-05 10:26:35 |
合計ジャッジ時間 | 3,450 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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 | 32 ms
56,348 KB |
testcase_01 | AC | 32 ms
56,408 KB |
testcase_02 | AC | 32 ms
56,576 KB |
testcase_03 | AC | 32 ms
56,532 KB |
testcase_04 | AC | 32 ms
56,476 KB |
testcase_05 | AC | 31 ms
56,448 KB |
testcase_06 | AC | 32 ms
56,476 KB |
testcase_07 | AC | 34 ms
56,500 KB |
testcase_08 | AC | 141 ms
56,320 KB |
testcase_09 | AC | 133 ms
56,448 KB |
testcase_10 | AC | 40 ms
56,548 KB |
testcase_11 | AC | 42 ms
56,596 KB |
testcase_12 | AC | 33 ms
56,448 KB |
testcase_13 | AC | 33 ms
56,476 KB |
testcase_14 | AC | 34 ms
56,472 KB |
testcase_15 | AC | 37 ms
56,448 KB |
testcase_16 | AC | 31 ms
56,576 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; //using namespace atcoder; struct fast_ios { fast_ios(){ cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; #define FOR(i, begin, end) for(int i=(begin);i<(end);i++) #define REP(i, n) FOR(i,0,n) #define IFOR(i, begin, end) for(int i=(end)-1;i>=(begin);i--) #define IREP(i, n) IFOR(i,0,n) #define Sort(v) sort(v.begin(), v.end()) #define Reverse(v) reverse(v.begin(), v.end()) #define all(v) v.begin(),v.end() #define SZ(v) ((int)v.size()) #define Lower_bound(v, x) distance(v.begin(), lower_bound(v.begin(), v.end(), x)) #define Upper_bound(v, x) distance(v.begin(), upper_bound(v.begin(), v.end(), x)) #define chmax(a, b) a = max(a, b) #define chmin(a, b) a = min(a, b) #define bit(n) (1LL<<(n)) #define debug(x) cout << #x << "=" << x << endl; #define vdebug(v) { cout << #v << "=" << endl; REP(i_debug, (int)v.size()){ cout << v[i_debug] << ","; } cout << endl; } #define mdebug(m) { cout << #m << "=" << endl; REP(i_debug, (int)m.size()){ REP(j_debug, (int)m[i_debug].size()){ cout << m[i_debug][j_debug] << ","; } cout << endl;} } #define pb push_back #define fi first #define se second #define int long long #define INF 1000000000000000000 template<typename T> istream &operator>>(istream &is, vector<T> &v){ for (auto &x : v) is >> x; return is; } template<typename T> ostream &operator<<(ostream &os, vector<T> &v){ for(int i = 0; i < (int)v.size(); i++) { cout << v[i]; if(i != (int)v.size() - 1) cout << endl; }; return os; } template<typename T1, typename T2> ostream &operator<<(ostream &os, pair<T1, T2> p){ cout << '(' << p.first << ',' << p.second << ')'; return os; } template<typename T> void Out(T x) { cout << x << endl; } template<typename T1, typename T2> void chOut(bool f, T1 y, T2 n) { if(f) Out(y); else Out(n); } using vec = vector<int>; using mat = vector<vec>; using Pii = pair<int, int>; using v_bool = vector<bool>; using v_Pii = vector<Pii>; //int dx[4] = {1,0,-1,0}; //int dy[4] = {0,1,0,-1}; //char d[4] = {'D','R','U','L'}; const int mod = 1000000007; //const int mod = 998244353; double dp[51][51][51][51] = {}; signed main(){ int A, B, C, N; cin >> A >> B >> C >> N; double ans[3] = {}; REP(i, 3){ REP(n, 51) REP(a, 51) REP(b, 51) REP(c, 51) dp[n][a][b][c] = 0; FOR(n, 1, N + 1) FOR(a, 1, A + 1) FOR(b, 1, B + 1) FOR(c, 1, C + 1){ int t = a + b + c; double pa = (double)(a * (a - 1)) / (double)(t * (t - 1)); double pb = (double)(b * (b - 1)) / (double)(t * (t - 1)); double pc = (double)(c * (c - 1)) / (double)(t * (t - 1)); dp[n][a][b][c] += (dp[n - 1][a - 1][b][c] + (i == 0)) * pa; dp[n][a][b][c] += (dp[n - 1][a][b - 1][c] + (i == 1)) * pb; dp[n][a][b][c] += (dp[n - 1][a][b][c - 1] + (i == 2)) * pc; dp[n][a][b][c] += dp[n - 1][a][b][c] * (1 - pa - pb - pc); } ans[i] = dp[N][A][B][C]; } cout << ans[0] << ' ' << ans[1] << ' ' << ans[2] << endl; return 0; }