結果
問題 | No.2389 Cheating Code Golf |
ユーザー | 👑 amentorimaru |
提出日時 | 2023-06-15 21:37:05 |
言語 | C++17(clang) (17.0.6 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,065 bytes |
コンパイル時間 | 6,006 ms |
コンパイル使用メモリ | 162,092 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-26 07:31:47 |
合計ジャッジ時間 | 7,063 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 | WA | - |
testcase_01 | WA | - |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | WA | - |
testcase_12 | AC | 1 ms
5,376 KB |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | AC | 1 ms
5,376 KB |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | AC | 2 ms
5,376 KB |
testcase_34 | WA | - |
testcase_35 | AC | 2 ms
5,376 KB |
testcase_36 | AC | 1 ms
5,376 KB |
testcase_37 | AC | 1 ms
5,376 KB |
testcase_38 | AC | 1 ms
5,376 KB |
testcase_39 | AC | 1 ms
5,376 KB |
testcase_40 | AC | 1 ms
5,376 KB |
testcase_41 | WA | - |
testcase_42 | AC | 1 ms
5,376 KB |
testcase_43 | AC | 2 ms
5,376 KB |
testcase_44 | AC | 2 ms
5,376 KB |
testcase_45 | AC | 2 ms
5,376 KB |
testcase_46 | WA | - |
testcase_47 | AC | 2 ms
5,376 KB |
testcase_48 | AC | 2 ms
5,376 KB |
testcase_49 | AC | 1 ms
5,376 KB |
testcase_50 | AC | 2 ms
5,376 KB |
testcase_51 | AC | 2 ms
5,376 KB |
testcase_52 | AC | 1 ms
5,376 KB |
ソースコード
#define ATCODER #define _USE_MATH_DEFINES #include<stdio.h> #include<iostream> #include<fstream> #include<algorithm> #include<vector> #include<string> #include <cassert> #include <numeric> #include <unordered_map> #include <unordered_set> #include <queue> #include <math.h> #include <climits> #include <set> #include <map> #include <list> #include <random> #include <iterator> #include <bitset> #include <chrono> using namespace std; using ll = long long; using ld = long double; using pll = pair<ll, ll>; using pdd = pair<ld, ld>; //template<class T> using pq = priority_queue<T, vector<T>, greater<T>>; #define FOR(i, a, b) for(ll i=(a); i<(b);i++) #define REP(i, n) for(ll i=0; i<(n);i++) #define ROF(i, a, b) for(ll i=(b-1); i>=(a);i--) #define PER(i, n) for(ll i=n-1; i>=0;i--) #define REPREP(i,j,a,b) for(ll i=0;i<a;i++)for(ll j=0;j<b;j++) #define VV(type) vector< vector<type> > #define VV2(type,n,m,val) vector< vector<type> > val;val.resize(n);for(ll i;i<n;i++)val[i].resize(m) #define vec(type) vector<type> #define VEC(type,n,val) vector<type> val;val.resize(n) #define VL vector<ll> #define VVL vector< vector<ll> > #define VP vector< pair<ll,ll> > #define SZ size() #define all(i) begin(i),end(i) #define SORT(i) sort(all(i)) #define BITI(i) (1<<i) #define BITSET(x,i) x | (ll(1)<<i) #define BITCUT(x,i) x & ~(ll(1)<<i) #define EXISTBIT(x,i) (((x>>i) & 1) != 0) #define ALLBIT(n) (ll(1)<<n-1) #define TOMAX(n,v) n=n<v?v:n #define TOMIN(n,v) n=n>v?v:n #define MP(a,b) make_pair(a,b) #define DET2(x1,y1,x2,y2) x1*y2-x2*y1 #define DET3(x1,y1,z1,x2,y2,z2,x3,y3,z3) x1*y2*z3+x2*y3*z1+x3*y1*z2-z1*y2*x3-z2*y3*x1-z3*y1*x2 #define INC(a) for(auto& v:a)v++; #define DEC(a) for(auto& v:a)v--; #define SQU(x) (x)*(x) #define L0 ll(0) #ifdef ATCODER #include <atcoder/all> using namespace atcoder; using mint = modint1000000007; using mint2 = modint998244353; #endif template<typename T = ll> vector<T> read(size_t n) { vector<T> ts(n); for (size_t i = 0; i < n; i++) cin >> ts[i]; return ts; } template<typename TV, const ll N> void read_tuple_impl(TV&) {} template<typename TV, const ll N, typename Head, typename... Tail> void read_tuple_impl(TV& ts) { get<N>(ts).emplace_back(*(istream_iterator<Head>(cin))); read_tuple_impl<TV, N + 1, Tail...>(ts); } template<typename... Ts> decltype(auto) read_tuple(size_t n) { tuple<vector<Ts>...> ts; for (size_t i = 0; i < n; i++) read_tuple_impl<decltype(ts), 0, Ts...>(ts); return ts; } using val = ll; using func = ll; val op(val a, val b) { return a + b; } val e() { return 0; } val mp(func f, val a) { if (f == -1) return a; return f; } func comp(func f, func g) { if (f == -1) return g; return f; } func id() { return -1; } ll di[4] = { 1,0,-1,0 }; ll dj[4] = { 0,1,0,-1 }; //ll di[4] = { -1,-1,1,1 }; //ll dj[4] = { -1,1,-1,1 }; ll di8[8] = { 0,-1,-1,-1,0,1,1,1 }; ll dj8[8] = { -1,-1,0,1,1,1,0,-1 }; void solve() { ll n, m; cin >> n >> m; auto [a, b, p] = read_tuple<ll, ll, ll>(n); ll ch = m - n; if (ch <= 0) { SORT(a); double ans = 0; REP(i, m) { ans += 1.0 / a[i]; } printf("%.10f\n", ans); return; } vector<pair<double, ll>> bap(n); REP(i, n) { bap[i].first = (1.0 / b[i] - 1.0 / a[i]) / p[i]; bap[i].second = i; } SORT(bap); reverse(all(bap)); vector dp(n + 1, vector<double>(ch + 1, 0.0)); dp[0][0] = 1.0; REP(i, n) { auto [t, ii] = bap[i]; REP(j, ch) { if (t <= 0.0) { dp[i][j + 1] += dp[i][j]; } else { // 成功 dp[i + 1][j] += dp[i][j] / p[ii]; // 失敗 dp[i][j + 1] += dp[i][j] * (1.0 - 1.0 / p[ii]); } } } vector<double> sa(n + 1), sb(n + 1); REP(i, n) sb[i + 1] = sb[i] + 1.0 / b[bap[i].second]; PER(i, n) sa[i] = sa[i + 1] + 1.0 / a[bap[i].second]; double ans = 0; REP(i, n) { ans += dp[i].back() * (sb[i] + sa[i]); } REP(i, ch) { ans += dp[n][i] * sb[n]; } printf("%.10f\n", ans); } int main() { ll t = 1; //cin >> t; while (t--) { solve(); } return 0; }